%20%E6%97%A0%E6%B3%95%E6%81%A2%E5%A4%8D%E5%B8%A6%E6%9C%89%201%20%E4%B8%AA%E6%A0%87%E8%AE%B0%E4%B8%BA%E7%BC%BA%E5%A4%B1%E7%9A%84%20PV%20%E7%9A%84%E5%8D%B7%E7%BB%84%E3%80%82%E6%89%BE%E4%B8%8D%E5%88%B0%E5%85%B7%E6%9C%89%20uuid%20%E7%9A%84%E8%AE%BE%E5%A4%87%EF%BC%8C%E4%BD%86%20pv%20%E5%AD%98%E5%9C%A8%E4%B8%94%20blkid%20%E6%89%BE%E5%88%B0%E7%9B%B8%E5%90%8C%E7%9A%84%20uuid.png)
该问题出现在 CentOS 7 的 kvm/qemu 虚拟机管理程序上，我们在其中托管多个虚拟机。
磁盘 /dev/sda (1918.2 GB) 是 raid6 LSI MEGARAID。
[root@mia3 ~]# fdisk -l
Disk /dev/sda: 1918.2 GB, 1918239768576 bytes, 3746562048 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x51549cd4
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 1026047 512000 83 Linux
/dev/sda2 1026048 135243775 67108864 82 Linux swap / Solaris
/dev/sda3 135243776 449816575 157286400 83 Linux
/dev/sda4 449816576 3746562047 1648372736 8e Linux LVM
这是我们的磁盘配置：sda1 - /boot、sda2 - swap、sda3 - / (root)、sda4 - 用于 LVM 的 PV，并为我们的 VM 提供精简配置。
断电后，根分区上的数据被损坏。为了启动服务器，我们不得不重新安装操作系统。我们没有触碰 /dev/sda4 分区。在此之前，我们在救援模式下挂载了根分区，并为 /etc/lvm/ 文件夹做了备份。
重新安装 Centos 后，我们尝试使用 vgcfgrestore 恢复 LVM，但收到错误：
[root@mia3 ~]# vgcfgrestore -f /etc/lvm/backup/vg_kvm vg_kvm -v
No devices found.
/dev/sda4: Checksum error at offset 808960
Couldn't read volume group metadata from /dev/sda4.
Metadata location on /dev/sda4 at 808960 has invalid summary for VG.
Failed to read metadata summary from /dev/sda4
Failed to scan VG from /dev/sda4
Couldn't find device with uuid HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT.
Consider using option --force to restore Volume Group vg_kvm with thin volumes.
Restore failed.
Scanning all devices to initialize lvmetad.
/dev/sda4: Checksum error at offset 808960
Couldn't read volume group metadata from /dev/sda4.
Metadata location on /dev/sda4 at 808960 has invalid summary for VG.
Failed to read metadata summary from /dev/sda4
Failed to scan VG from /dev/sda4
[root@mia3 ~]#
因此我们尝试重新添加 PV 并覆盖元数据，但没有成功：
[root@mia3 ~]# pvcreate -f /dev/sda4 --restorefile /root/lvm/backup/vg_kvm --uuid HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT -vv
devices/global_filter not found in config: defaulting to global_filter = [ "a|.*/|" ]
global/lvmetad_update_wait_time not found in config: defaulting to 10
devices/filter not found in config: defaulting to filter = [ "a|.*/|" ]
devices/cache not found in config: defaulting to /etc/lvm/cache/.cache
metadata/record_lvs_history not found in config: defaulting to 0
File-based locking selected.
Couldn't find device with uuid HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT.
Stack vg_kvm/lvpool:0[0] on LV vg_kvm/lvpool_tdata:0.
Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tdata.
Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tmeta.
Adding vg_kvm/vsv11999-dm9oryxunpw8po9p-1xwrkrotul6i5k3g:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12001-dmzdbquhkhrydlnf-kqjcbeyvz1c5xwun:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12034-dnadddzaxsxoq2rx-iwxjz6wr2vmqhsj3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12036-dbgt9zilw2tg9sqd-c0xa9h1uxigjuqg9:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12037-dctrjirji3agbl9l-dtzyf8jrb8lip0m7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12038-dm5mulwohkvz5ara-kccgnknpjdi11tdy:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12039-d1lnb9qcyjaqmodk-mnl22loaflo24kpm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12040-daejvderic4uvccj-wjnydccgzohyaekq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12046-dswief4uk4gthxa1-ie5s7up6vbf37p68:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12056-du7hvvsp3lw7jgja-uap8l1jpe29llrpu:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12080-dwydbngcjptnnryn-hzz0jimwfl6yau2x:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12094-d8cmko7aio2f1fyo-warkvewdzfeedme5:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12097-dllp7oepp4homdj9-jm6n2itmvy29k9xf:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12098-dcj6mnnidej8c80u-r3bkk3pfu8g9sf3o:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12103-dwtyfq1quemcij56-4rwivmmtzxwk1ydb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12106-dngrxbyoapwac5sm-bstrvsbxzrztefob:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12107-dq3h0wgnzkasoles-hv12r8qmyobojubp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12109-ddq6cmtow9qwuaka-v9a1omyljy0xujk4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12110-dvaaktx2bng99yl9-f5xh28mlg7u3mo5r:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12111-db0wlufykbcbb2mp-dxhgxxmivthvqwwp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12112-dyfnblgyajfpidqs-ny0xpnxhzfzwc1db:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12116-dowxexkxa0ygsgki-e4dih6xcnybtdgx2:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12117-dwd0weu8ig1dvukx-fly3n8dyseklhntv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12118-dz9hbvnbtsihufm5-paqhexr1tuld8bnd:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12119-dof5n90vez6smo1j-h1xmccyzl7qotery:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12120-d9q0y85z4shpw64o-6zx5tmxhajpcxtkv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12121-dac4vuig8akyryd0-0e4rf2snm04r5mdy:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12122-d99yza6ssbhxxkru-16ptyp8btexq6wkb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12124-d4ud5tu2ueajr0vc-r9pv77cjusnjue21:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12126-dqjmtfzubhqvheij-blecac71kpwsmy62:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12127-d5sgcmdodjaqtvp9-oqbroobow5tzn0va:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12130-dtf7rf4suf8bov9t-8lb0agstvcpann2e:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12131-dwkveordvertdam3-3g4qwtf5ydhy0hug:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12134-dgpxbewt3xlkxlqb-j5ad04pt2fndqqmw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12135-d55krjg3dotss3e4-dwbbjmo0shwwwzv2:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12138-dyz9yl6swxbaxfrj-1pgri05suzqyagqq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12140-dykgcwqaauznoxrm-4ibft4womwuvpwkx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12142-dwtlkzoke0a05u1o-rqxjogzuvjvfttxs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12144-dn3gyu3uroppwgzg-wraejm2ynwnmtmd4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12162-dalw90et3l9vbath-eo5womktdromb5sn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12211-dyyizuuag0mz4eok-je7du6slil1jlfzp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12329-d5xmlj2iqsuekgkm-cg6qplkwk48yiyeo:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12333-drqvvb7fktr4n52b-estbavvooqdljpvo:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12334-dbdf0lvefbgpqbxa-bmpnzainjdfvuavv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12339-d3yfeg1upsfoxbd3-nbxbccudjdtcgztt:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12354-d1ctzl88dwv9znri-pzfp6weunhpdhvgn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12361-dbug4gr7r8mbsnva-yamgras92xuqin66:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12088-dqphwqqeuwxtmm7y-4rurc6jm0lvcj57q:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12089-dbhimrcqvjkaxvxc-3vpljlh2xkojhb9e:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12090-dndlzsmpj8qgm2gb-wm4sg3d6n2cq3tpm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12091-dyyxcz5cf4w4cu6z-gja2kph6egpjvyzh:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12092-dnllln6x7uud75ss-um9zelymhc04ohd6:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12442-dyf2cgwdgaluli0s-cahwc74lrstt61gl:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12456-dmiuo7guhru4snsf-yt55qun0wx5mtfkg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12087-dxbtb8w1g3tx5akk-bdqcsnlathemkrig:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12234-dq82wyoapvxvh7zz-maaekbfd7h9ixks8:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12588-das5kos8qt1ziktl-aky0pxwg8ecv9b48:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12771-djaikmniei1vxia5-jhqasdwc763s3pmb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12784-d3k6aplejbvjrlcw-uwo81r0wkmeiptso:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12139-dpnhdmg2odfabvfn-zqgiw42wfsgbbkrc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12137-dxtiqptvdwcrrcwa-22fkxorf6hl44evf:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12866-d37htmu48aopiafv-sli9m0lt3dz0yeyl:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12096-dz9pfno05wqq8vbg-sq8i5na5z8lrnm6n:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12363-dtlh9w3tza99quoj-dlicfndz6e3pbfu0:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12890-dmaaydjldw3c13jk-iskdygh5pczveo3r:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12320-dqmecms9nep6muns-xmmkziafa8mz1hta:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12936-dhdfa36ovcdzfafp-ultnlmom4scugsw1:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12964-dctbp9xgo2gl8w6i-kbw9cinhoieea8av:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12984-dwqjvkqc3aznhb4o-criyexpxvdndoscq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12143-d3s1toagczaiq4ma-oupwnk3eg27r41ze:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13019-d5yrsi5a58bdzalc-i6mbum8zthk2arhs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13022-djszrasae5w7xegh-ehqsutbhrwd7qgsi:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13027-dq6pg99jd2fphljg-u15x8sonbwukaree:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12041-dlsmtmfa6fp4wcuc-bfhftkdhwfqa7sqb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13039-djtjimojqi3iaufp-csbinqtsvebzzmqx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13061-duocptl9qdtvwubp-feryqeejht4j24ql:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13064-dexwkomdh62by80s-aymbuetu6p0btn4d:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13076-drd4nrhy4u7fq1tn-f1kt8ubk2jch4ol3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13082-ds9gjikqyg9nftua-rrhk4dlrr8cp3la7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12759-du4yducr4ghi8eun-bzivqxabwaltaddm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12123-dzb9rktypp0jqinx-adtlzed02wpccxoa:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13118-d0lj9gpvqfmox63i-9jstjcjkmemszrla:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13121-du0r39n6wvnrclox-bviz76ig9vvexota:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13133-d2fk6lg6bsppbkcs-hwk5bmsvqxa0y0bs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13204-dl6hzsmswetitsb4-bais6lpjbbhfkexn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13230-dtiyrmijg8mde5xy-vobukov1qxg8bx5j:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13254-d3sdhrrgcvbwrsyp-yxaozxmt3clqzxxc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13271-drutw4ihq774xhs6-ecpwfmzcrqy0vvsm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13266-dmuj5cfeu2hrgfxw-2tpflycnwoedyidb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13380-d99ciziibe7rt3es-7fkh56myy79oushw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13487-d30yxx4wgfxcb9te-chc2bxojs7tvcwz3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13502-dc2oivdodzo94jj3-1qmpba9ti4zzbfeg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13277-deudjco25w9cd3rv-re1ha5qkozses9i3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12208-dfqhoqmtuwzktwqm-n9s5daovhtnyvyeh:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13481-dthcwgpolombhfed-dkmesvsvmt1vem0d:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13585-ddvwhm2vcqpq66uy-1brs98bctgr6bcq9:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13586-dadacaexxn8nkuy3-fyx8zp5mursbqhns:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13587-dc0fmskwdbkmz7mg-ra53wgfksiv7tsqk:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13569-dk6v0pyvz8eoohl5-qyndiwn8zriir75s:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13603-d66mz2amabmd63fj-rkcqmtvfnlfmywou:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13613-dykuo32mnkgf9nce-hhkhn118dhsedoc8:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13623-dksoizdtoglihaax-23o0zltutliyoo2q:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13629-dxbpqqernfvufxrz-iv6jujdxm78hxjbn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13610-drrehnh36oipacdf-frnumdhlt823mntg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13654-dmlnhhqilztxff5a-4gawkysgtkze4st7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13669-dk3ukgidvj0l4x4x-9d3vfao5qejzecdn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13672-d1r1608gu96b0ujo-nn7ejmxkbfce40m4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13689-dhpzh8w7jlwi0zza-aqizb6tbeuk9k1ca:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12477-dejmu0gihtllnj97-gaxwgicndwp25unx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13710-dv2bktawped5fz44-0bkdtrkp8tk2vynu:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12125-d5d9pebts1rue7jt-vwnkapewjkfszked:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13718-dmimkn9h1ax3t4am-8tdnpznya2reek8g:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13545-dzaq2rjqfiyf5azl-kw35xomndhltjnrs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13723-daleipfjwu7zm7aj-s8jo6yhxwz4efl2y:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13726-dpdqvmnzkvxkiz4y-cfudhed6m12hnlmj:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12136-d0qvvamyx5qq1g6o-awtlh6pbotvlacyc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13258-du2kuwgkwhypcfzz-i6h00rd0exzw4b69:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13755-dqglblzy3akyohph-wtev5tlrs5lkkejd:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13758-dhfrybljxildcky1-ktotkou3mpvxfjnq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13759-dxqbq7phpjgoa1ed-dwtly1dkuorvlyli:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13762-di54bo3us4p8gefa-34s2uhcye1rbdbvw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13767-dwtsyqxhqbp8fa9w-us8xvwm9q6nqkmzx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13768-dadnlkrau2cwhlbd-cj8liz4hfolpmjfa:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13769-dt4nwlcmpfqyenob-jvpfd5jut8kvcm8u:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13781-dvckr0uqfwrsvmc6-zklf1olhlhzzfppp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12133-dp55dttaolpbd6n8-rlhoezgituqkyrov:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12042-dnncyzlyhfxyaxkt-metx0ei0zlz3d2sn:0 as an user of vg_kvm/lvpool.
metadata/pvmetadataignore not found in config: defaulting to 0
metadata/pvmetadatasize not found in config: defaulting to 255
metadata/pvmetadatacopies not found in config: defaulting to 1
report/output_format not found in config: defaulting to basic
log/report_command_log not found in config: defaulting to 0
Locking /run/lock/lvm/P_orphans WB
/dev/sda4: size is 3296745472 sectors
/dev/sda4: using cached size 3296745472 sectors
/dev/sda: size is 3746562048 sectors
/dev/sda1: size is 1024000 sectors
/dev/sda1: using cached size 1024000 sectors
/dev/sda2: size is 134217728 sectors
/dev/sda2: using cached size 134217728 sectors
/dev/sda3: size is 314572800 sectors
/dev/sda3: using cached size 314572800 sectors
/dev/sda4: using cached size 3296745472 sectors
/dev/sda4: using cached size 3296745472 sectors
Locking #orphans_lvm1 already done
Reading VG #orphans_lvm1
Locking #orphans_pool already done
Reading VG #orphans_pool
Locking #orphans_lvm2 already done
Reading VG #orphans_lvm2
Processing device /dev/sda1.
Processing device /dev/sda2.
Processing device /dev/sda3.
Processing device /dev/sda4.
/dev/sda4: lvm2 label detected at sector 1
/dev/sda4: Checksum error at offset 808960
Couldn't read volume group metadata from /dev/sda4.
Metadata location on /dev/sda4 at 808960 has invalid summary for VG.
Failed to read metadata summary from /dev/sda4
Failed to scan VG from /dev/sda4
Unlocking /run/lock/lvm/P_orphans
[root@mia3 ~]#
注意错误：
Couldn't find device with uuid HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT.
PV（/dev/sda4）具有相同的 UUID：
[root@mia3 ~]# blkid
/dev/sda1: LABEL="boot" UUID="087755bd-9434-4597-953b-c056fd9cb285" TYPE="xfs"
/dev/sda2: LABEL="swap" UUID="c7fd2030-0441-4a4e-8462-0aeffc272bfa" TYPE="swap"
/dev/sda3: LABEL="root" UUID="3ee19cf6-87b5-40b5-a7dd-13d507efa734" TYPE="xfs"
/dev/sda4: UUID="HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT" TYPE="LVM2_member"
[root@mia3 ~]#
以下是 /etc/lvm/backup/vg_kvm 的一小部分内容：
vg_kvm {
id = "i3usZz-vdt5-9yaU-Kbcl-XDWJ-OFr1-UhZRBa"
seqno = 1349
format = "lvm2" # informational
status = ["RESIZEABLE", "READ", "WRITE"]
flags = []
extent_size = 8192 # 4 Megabytes
max_lv = 0
max_pv = 0
metadata_copies = 0
physical_volumes {
pv0 {
id = "HNB35U-ilI4-WWAK-1Q4D-Netj-t68p-Po4vCT"
device = "/dev/sda4" # Hint only
status = ["ALLOCATABLE"]
flags = []
dev_size = 3296745472 # 1.53517 Terabytes
pe_start = 2048
pe_count = 402434 # 1.53516 Terabytes
}
}
logical_volumes {
lvpool {
id = "DHqs7X-95DA-ADNm-WTd9-cXDf-HR5a-MoHLRx"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575901618 # 2019-12-09 16:26:58 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 401081 # 1.53 Terabytes
type = "thin-pool"
metadata = "lvpool_tmeta"
pool = "lvpool_tdata"
transaction_id = 667
chunk_size = 2048 # 1024 Kilobytes
discards = "passdown"
zero_new_blocks = 1
}
}
vsv11999-dm9oryxunpw8po9p-1xwrkrotul6i5k3g {
id = "vBco77-gPno-S0cu-QZdx-9Nnk-twXR-cBBAzW"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575902920 # 2019-12-09 16:48:40 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 6400 # 25 Gigabytes
type = "thin"
thin_pool = "lvpool"
transaction_id = 0
device_id = 1
}
}
vsv12001-dmzdbquhkhrydlnf-kqjcbeyvz1c5xwun {
id = "xqDzS2-iHXO-2zEi-LRHO-0FDR-hvcM-oRdFeD"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575904408 # 2019-12-09 17:13:28 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "thin"
thin_pool = "lvpool"
transaction_id = 1
device_id = 2
}
}
vsv12034-dnadddzaxsxoq2rx-iwxjz6wr2vmqhsj3 {
id = "VIDuPN-SN4Z-V1qm-gzI9-sSnV-WGcp-NBvgUa"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575986509 # 2019-12-10 16:01:49 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "thin"
thin_pool = "lvpool"
transaction_id = 6
device_id = 5
}
}
vsv12036-dbgt9zilw2tg9sqd-c0xa9h1uxigjuqg9 {
id = "XnnwPm-e3jE-VU9W-7QIz-3Sz5-HDSM-sEe7NY"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575988785 # 2019-12-10 16:39:45 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "thin"
thin_pool = "lvpool"
transaction_id = 8
device_id = 7
}
}
vsv12037-dctrjirji3agbl9l-dtzyf8jrb8lip0m7 {
id = "ysHM90-Vmof-Mrwj-Nb1s-HPER-g3v5-hdutBz"
status = ["READ", "WRITE", "VISIBLE"]
flags = []
creation_time = 1575989058 # 2019-12-10 16:44:18 +0200
creation_host = "mia3"
segment_count = 1
segment1 {
start_extent = 0
extent_count = 3840 # 15 Gigabytes
type = "thin"
thin_pool = "lvpool"
transaction_id = 9
device_id = 8
}
}
所有数据（虚拟机的根分区）都还在，我们已经使用 testdisk 等磁盘恢复工具进行了检查，但无法恢复 lvm。我们做错了什么？还有恢复的可能性吗？
#更新
使用 Centos6 CD 和救援模式，我已成功恢复 PV 和 VG。但是，我无法重新激活 VG 和 LV 池，我们收到错误：
Executing: /usr/sbin/thin_check -q --clear-needs-check-flag /dev/mapper/vg_kvm-lvpool_tmeta
/usr/sbin/thin_check failed: 1
Check of pool vg_kvm/lvpool failed (status:1). Manual repair required!
答案1
看来 Red Hat 7 和 8 在尝试使用时也存在类似的问题vgcfgrestore：pvcreate 命令失败，并显示“元数据位置对 VG 的摘要无效”错误。CentOS 与 Red Hat 共享基础，因此……
其中一个答案是“我们在上游和 RHEL8 中已经为这个问题提供了一个解决方案，不幸的是，在这个阶段考虑移植回 RHEL7 太具侵略性。” 另一个参与该 bug 的人说他们通过启动 Red Hat 6 修复了这个问题，然后就正常vgcfgrestore工作了。
也许您可以从 USB 记忆棒启动新的 sysrescue CD 并执行此操作？
正如我在评论中所说，要么用备份整个卷dd，要么至少执行类似的操作dd if=/dev/sda4 of=/somewere/backup-first100MB.img bs=1M count=100以便获得标题信息。
答案2
它与 Centos6 救援一起工作。恢复后，我启动到正常的 centos 7，并且 vg 在那里。但是，现在我无法激活 lv（精简池）：
[root@mia3 ~]# lvchange -ay /dev/vg_kvm/lvpool
Check of pool vg_kvm/lvpool failed (status:1). Manual repair required!
[root@mia3 ~]#
以下是使用 -vvv 的命令
[root@mia3 ~]# lvchange -ay /dev/vg_kvm/lvpool -vv
devices/global_filter not found in config: defaulting to global_filter = [ "a|.*/|" ]
global/lvmetad_update_wait_time not found in config: defaulting to 10
Setting devices/filter to filter = [ "a|/dev/sda.*|", "a|/dev/disk/by-id/dm-uuid-.*mpath-.*|", "r|.*|" ]
devices/cache not found in config: defaulting to /etc/lvm/cache/.cache
metadata/record_lvs_history not found in config: defaulting to 0
File-based locking selected.
report/output_format not found in config: defaulting to basic
log/report_command_log not found in config: defaulting to 0
Obtaining the complete list of VGs before processing their LVs
Processing VG vg_kvm i3usZz-vdt5-9yaU-Kbcl-XDWJ-OFr1-UhZRBa
Locking /run/lock/lvm/V_vg_kvm RB
Reading VG vg_kvm i3usZz-vdt5-9yaU-Kbcl-XDWJ-OFr1-UhZRBa
Stack vg_kvm/lvpool:0[0] on LV vg_kvm/lvpool_tdata:0.
Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tdata.
Adding vg_kvm/lvpool:0 as an user of vg_kvm/lvpool_tmeta.
Adding vg_kvm/vsv11999-dm9oryxunpw8po9p-1xwrkrotul6i5k3g:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12001-dmzdbquhkhrydlnf-kqjcbeyvz1c5xwun:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12034-dnadddzaxsxoq2rx-iwxjz6wr2vmqhsj3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12036-dbgt9zilw2tg9sqd-c0xa9h1uxigjuqg9:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12037-dctrjirji3agbl9l-dtzyf8jrb8lip0m7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12038-dm5mulwohkvz5ara-kccgnknpjdi11tdy:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12039-d1lnb9qcyjaqmodk-mnl22loaflo24kpm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12040-daejvderic4uvccj-wjnydccgzohyaekq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12046-dswief4uk4gthxa1-ie5s7up6vbf37p68:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12056-du7hvvsp3lw7jgja-uap8l1jpe29llrpu:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12080-dwydbngcjptnnryn-hzz0jimwfl6yau2x:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12094-d8cmko7aio2f1fyo-warkvewdzfeedme5:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12097-dllp7oepp4homdj9-jm6n2itmvy29k9xf:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12098-dcj6mnnidej8c80u-r3bkk3pfu8g9sf3o:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12103-dwtyfq1quemcij56-4rwivmmtzxwk1ydb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12106-dngrxbyoapwac5sm-bstrvsbxzrztefob:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12107-dq3h0wgnzkasoles-hv12r8qmyobojubp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12109-ddq6cmtow9qwuaka-v9a1omyljy0xujk4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12110-dvaaktx2bng99yl9-f5xh28mlg7u3mo5r:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12111-db0wlufykbcbb2mp-dxhgxxmivthvqwwp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12112-dyfnblgyajfpidqs-ny0xpnxhzfzwc1db:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12116-dowxexkxa0ygsgki-e4dih6xcnybtdgx2:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12117-dwd0weu8ig1dvukx-fly3n8dyseklhntv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12118-dz9hbvnbtsihufm5-paqhexr1tuld8bnd:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12119-dof5n90vez6smo1j-h1xmccyzl7qotery:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12120-d9q0y85z4shpw64o-6zx5tmxhajpcxtkv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12121-dac4vuig8akyryd0-0e4rf2snm04r5mdy:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12122-d99yza6ssbhxxkru-16ptyp8btexq6wkb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12124-d4ud5tu2ueajr0vc-r9pv77cjusnjue21:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12126-dqjmtfzubhqvheij-blecac71kpwsmy62:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12127-d5sgcmdodjaqtvp9-oqbroobow5tzn0va:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12130-dtf7rf4suf8bov9t-8lb0agstvcpann2e:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12131-dwkveordvertdam3-3g4qwtf5ydhy0hug:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12134-dgpxbewt3xlkxlqb-j5ad04pt2fndqqmw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12135-d55krjg3dotss3e4-dwbbjmo0shwwwzv2:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12138-dyz9yl6swxbaxfrj-1pgri05suzqyagqq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12140-dykgcwqaauznoxrm-4ibft4womwuvpwkx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12142-dwtlkzoke0a05u1o-rqxjogzuvjvfttxs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12144-dn3gyu3uroppwgzg-wraejm2ynwnmtmd4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12162-dalw90et3l9vbath-eo5womktdromb5sn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12211-dyyizuuag0mz4eok-je7du6slil1jlfzp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12329-d5xmlj2iqsuekgkm-cg6qplkwk48yiyeo:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12333-drqvvb7fktr4n52b-estbavvooqdljpvo:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12334-dbdf0lvefbgpqbxa-bmpnzainjdfvuavv:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12339-d3yfeg1upsfoxbd3-nbxbccudjdtcgztt:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12354-d1ctzl88dwv9znri-pzfp6weunhpdhvgn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12361-dbug4gr7r8mbsnva-yamgras92xuqin66:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12088-dqphwqqeuwxtmm7y-4rurc6jm0lvcj57q:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12089-dbhimrcqvjkaxvxc-3vpljlh2xkojhb9e:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12090-dndlzsmpj8qgm2gb-wm4sg3d6n2cq3tpm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12091-dyyxcz5cf4w4cu6z-gja2kph6egpjvyzh:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12092-dnllln6x7uud75ss-um9zelymhc04ohd6:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12442-dyf2cgwdgaluli0s-cahwc74lrstt61gl:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12456-dmiuo7guhru4snsf-yt55qun0wx5mtfkg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12087-dxbtb8w1g3tx5akk-bdqcsnlathemkrig:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12234-dq82wyoapvxvh7zz-maaekbfd7h9ixks8:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12588-das5kos8qt1ziktl-aky0pxwg8ecv9b48:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12771-djaikmniei1vxia5-jhqasdwc763s3pmb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12784-d3k6aplejbvjrlcw-uwo81r0wkmeiptso:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12139-dpnhdmg2odfabvfn-zqgiw42wfsgbbkrc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12137-dxtiqptvdwcrrcwa-22fkxorf6hl44evf:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12866-d37htmu48aopiafv-sli9m0lt3dz0yeyl:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12096-dz9pfno05wqq8vbg-sq8i5na5z8lrnm6n:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12363-dtlh9w3tza99quoj-dlicfndz6e3pbfu0:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12890-dmaaydjldw3c13jk-iskdygh5pczveo3r:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12320-dqmecms9nep6muns-xmmkziafa8mz1hta:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12936-dhdfa36ovcdzfafp-ultnlmom4scugsw1:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12964-dctbp9xgo2gl8w6i-kbw9cinhoieea8av:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12984-dwqjvkqc3aznhb4o-criyexpxvdndoscq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12143-d3s1toagczaiq4ma-oupwnk3eg27r41ze:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13019-d5yrsi5a58bdzalc-i6mbum8zthk2arhs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13022-djszrasae5w7xegh-ehqsutbhrwd7qgsi:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13027-dq6pg99jd2fphljg-u15x8sonbwukaree:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12041-dlsmtmfa6fp4wcuc-bfhftkdhwfqa7sqb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13039-djtjimojqi3iaufp-csbinqtsvebzzmqx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13061-duocptl9qdtvwubp-feryqeejht4j24ql:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13064-dexwkomdh62by80s-aymbuetu6p0btn4d:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13076-drd4nrhy4u7fq1tn-f1kt8ubk2jch4ol3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13082-ds9gjikqyg9nftua-rrhk4dlrr8cp3la7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12759-du4yducr4ghi8eun-bzivqxabwaltaddm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12123-dzb9rktypp0jqinx-adtlzed02wpccxoa:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13118-d0lj9gpvqfmox63i-9jstjcjkmemszrla:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13121-du0r39n6wvnrclox-bviz76ig9vvexota:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13133-d2fk6lg6bsppbkcs-hwk5bmsvqxa0y0bs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13204-dl6hzsmswetitsb4-bais6lpjbbhfkexn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13230-dtiyrmijg8mde5xy-vobukov1qxg8bx5j:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13254-d3sdhrrgcvbwrsyp-yxaozxmt3clqzxxc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13271-drutw4ihq774xhs6-ecpwfmzcrqy0vvsm:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13266-dmuj5cfeu2hrgfxw-2tpflycnwoedyidb:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13380-d99ciziibe7rt3es-7fkh56myy79oushw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13487-d30yxx4wgfxcb9te-chc2bxojs7tvcwz3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13502-dc2oivdodzo94jj3-1qmpba9ti4zzbfeg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13277-deudjco25w9cd3rv-re1ha5qkozses9i3:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12208-dfqhoqmtuwzktwqm-n9s5daovhtnyvyeh:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13481-dthcwgpolombhfed-dkmesvsvmt1vem0d:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13585-ddvwhm2vcqpq66uy-1brs98bctgr6bcq9:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13586-dadacaexxn8nkuy3-fyx8zp5mursbqhns:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13587-dc0fmskwdbkmz7mg-ra53wgfksiv7tsqk:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13569-dk6v0pyvz8eoohl5-qyndiwn8zriir75s:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13603-d66mz2amabmd63fj-rkcqmtvfnlfmywou:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13613-dykuo32mnkgf9nce-hhkhn118dhsedoc8:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13623-dksoizdtoglihaax-23o0zltutliyoo2q:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13629-dxbpqqernfvufxrz-iv6jujdxm78hxjbn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13610-drrehnh36oipacdf-frnumdhlt823mntg:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13654-dmlnhhqilztxff5a-4gawkysgtkze4st7:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13669-dk3ukgidvj0l4x4x-9d3vfao5qejzecdn:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13672-d1r1608gu96b0ujo-nn7ejmxkbfce40m4:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13689-dhpzh8w7jlwi0zza-aqizb6tbeuk9k1ca:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12477-dejmu0gihtllnj97-gaxwgicndwp25unx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13710-dv2bktawped5fz44-0bkdtrkp8tk2vynu:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12125-d5d9pebts1rue7jt-vwnkapewjkfszked:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13718-dmimkn9h1ax3t4am-8tdnpznya2reek8g:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13545-dzaq2rjqfiyf5azl-kw35xomndhltjnrs:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13723-daleipfjwu7zm7aj-s8jo6yhxwz4efl2y:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13726-dpdqvmnzkvxkiz4y-cfudhed6m12hnlmj:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12136-d0qvvamyx5qq1g6o-awtlh6pbotvlacyc:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13258-du2kuwgkwhypcfzz-i6h00rd0exzw4b69:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13755-dqglblzy3akyohph-wtev5tlrs5lkkejd:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13758-dhfrybljxildcky1-ktotkou3mpvxfjnq:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13759-dxqbq7phpjgoa1ed-dwtly1dkuorvlyli:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13762-di54bo3us4p8gefa-34s2uhcye1rbdbvw:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13767-dwtsyqxhqbp8fa9w-us8xvwm9q6nqkmzx:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13768-dadnlkrau2cwhlbd-cj8liz4hfolpmjfa:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13769-dt4nwlcmpfqyenob-jvpfd5jut8kvcm8u:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv13781-dvckr0uqfwrsvmc6-zklf1olhlhzzfppp:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12133-dp55dttaolpbd6n8-rlhoezgituqkyrov:0 as an user of vg_kvm/lvpool.
Adding vg_kvm/vsv12042-dnncyzlyhfxyaxkt-metx0ei0zlz3d2sn:0 as an user of vg_kvm/lvpool.
/dev/sda4: size is 3296745472 sectors
Adding vg_kvm/lvpool to the list of LVs to be processed.
Processing LV lvpool in VG vg_kvm.
Activating logical volume vg_kvm/lvpool exclusively.
Locking /run/lock/lvm/A_vg_kvm WB
vg_kvm/lvpool is not active
vg_kvm/vsv11999-dm9oryxunpw8po9p-1xwrkrotul6i5k3g is not active
vg_kvm/vsv12001-dmzdbquhkhrydlnf-kqjcbeyvz1c5xwun is not active
vg_kvm/vsv12034-dnadddzaxsxoq2rx-iwxjz6wr2vmqhsj3 is not active
vg_kvm/vsv12036-dbgt9zilw2tg9sqd-c0xa9h1uxigjuqg9 is not active
vg_kvm/vsv12037-dctrjirji3agbl9l-dtzyf8jrb8lip0m7 is not active
vg_kvm/vsv12038-dm5mulwohkvz5ara-kccgnknpjdi11tdy is not active
vg_kvm/vsv12039-d1lnb9qcyjaqmodk-mnl22loaflo24kpm is not active
vg_kvm/vsv12040-daejvderic4uvccj-wjnydccgzohyaekq is not active
vg_kvm/vsv12046-dswief4uk4gthxa1-ie5s7up6vbf37p68 is not active
vg_kvm/vsv12056-du7hvvsp3lw7jgja-uap8l1jpe29llrpu is not active
vg_kvm/vsv12080-dwydbngcjptnnryn-hzz0jimwfl6yau2x is not active
vg_kvm/vsv12094-d8cmko7aio2f1fyo-warkvewdzfeedme5 is not active
vg_kvm/vsv12097-dllp7oepp4homdj9-jm6n2itmvy29k9xf is not active
vg_kvm/vsv12098-dcj6mnnidej8c80u-r3bkk3pfu8g9sf3o is not active
vg_kvm/vsv12103-dwtyfq1quemcij56-4rwivmmtzxwk1ydb is not active
vg_kvm/vsv12106-dngrxbyoapwac5sm-bstrvsbxzrztefob is not active
vg_kvm/vsv12107-dq3h0wgnzkasoles-hv12r8qmyobojubp is not active
vg_kvm/vsv12109-ddq6cmtow9qwuaka-v9a1omyljy0xujk4 is not active
vg_kvm/vsv12110-dvaaktx2bng99yl9-f5xh28mlg7u3mo5r is not active
vg_kvm/vsv12111-db0wlufykbcbb2mp-dxhgxxmivthvqwwp is not active
vg_kvm/vsv12112-dyfnblgyajfpidqs-ny0xpnxhzfzwc1db is not active
vg_kvm/vsv12116-dowxexkxa0ygsgki-e4dih6xcnybtdgx2 is not active
vg_kvm/vsv12117-dwd0weu8ig1dvukx-fly3n8dyseklhntv is not active
vg_kvm/vsv12118-dz9hbvnbtsihufm5-paqhexr1tuld8bnd is not active
vg_kvm/vsv12119-dof5n90vez6smo1j-h1xmccyzl7qotery is not active
vg_kvm/vsv12120-d9q0y85z4shpw64o-6zx5tmxhajpcxtkv is not active
vg_kvm/vsv12121-dac4vuig8akyryd0-0e4rf2snm04r5mdy is not active
vg_kvm/vsv12122-d99yza6ssbhxxkru-16ptyp8btexq6wkb is not active
vg_kvm/vsv12124-d4ud5tu2ueajr0vc-r9pv77cjusnjue21 is not active
vg_kvm/vsv12126-dqjmtfzubhqvheij-blecac71kpwsmy62 is not active
vg_kvm/vsv12127-d5sgcmdodjaqtvp9-oqbroobow5tzn0va is not active
vg_kvm/vsv12130-dtf7rf4suf8bov9t-8lb0agstvcpann2e is not active
vg_kvm/vsv12131-dwkveordvertdam3-3g4qwtf5ydhy0hug is not active
vg_kvm/vsv12134-dgpxbewt3xlkxlqb-j5ad04pt2fndqqmw is not active
vg_kvm/vsv12135-d55krjg3dotss3e4-dwbbjmo0shwwwzv2 is not active
vg_kvm/vsv12138-dyz9yl6swxbaxfrj-1pgri05suzqyagqq is not active
vg_kvm/vsv12140-dykgcwqaauznoxrm-4ibft4womwuvpwkx is not active
vg_kvm/vsv12142-dwtlkzoke0a05u1o-rqxjogzuvjvfttxs is not active
vg_kvm/vsv12144-dn3gyu3uroppwgzg-wraejm2ynwnmtmd4 is not active
vg_kvm/vsv12162-dalw90et3l9vbath-eo5womktdromb5sn is not active
vg_kvm/vsv12211-dyyizuuag0mz4eok-je7du6slil1jlfzp is not active
vg_kvm/vsv12329-d5xmlj2iqsuekgkm-cg6qplkwk48yiyeo is not active
vg_kvm/vsv12333-drqvvb7fktr4n52b-estbavvooqdljpvo is not active
vg_kvm/vsv12334-dbdf0lvefbgpqbxa-bmpnzainjdfvuavv is not active
vg_kvm/vsv12339-d3yfeg1upsfoxbd3-nbxbccudjdtcgztt is not active
vg_kvm/vsv12354-d1ctzl88dwv9znri-pzfp6weunhpdhvgn is not active
vg_kvm/vsv12361-dbug4gr7r8mbsnva-yamgras92xuqin66 is not active
vg_kvm/vsv12088-dqphwqqeuwxtmm7y-4rurc6jm0lvcj57q is not active
vg_kvm/vsv12089-dbhimrcqvjkaxvxc-3vpljlh2xkojhb9e is not active
vg_kvm/vsv12090-dndlzsmpj8qgm2gb-wm4sg3d6n2cq3tpm is not active
vg_kvm/vsv12091-dyyxcz5cf4w4cu6z-gja2kph6egpjvyzh is not active
vg_kvm/vsv12092-dnllln6x7uud75ss-um9zelymhc04ohd6 is not active
vg_kvm/vsv12442-dyf2cgwdgaluli0s-cahwc74lrstt61gl is not active
vg_kvm/vsv12456-dmiuo7guhru4snsf-yt55qun0wx5mtfkg is not active
vg_kvm/vsv12087-dxbtb8w1g3tx5akk-bdqcsnlathemkrig is not active
vg_kvm/vsv12234-dq82wyoapvxvh7zz-maaekbfd7h9ixks8 is not active
vg_kvm/vsv12588-das5kos8qt1ziktl-aky0pxwg8ecv9b48 is not active
vg_kvm/vsv12771-djaikmniei1vxia5-jhqasdwc763s3pmb is not active
vg_kvm/vsv12784-d3k6aplejbvjrlcw-uwo81r0wkmeiptso is not active
vg_kvm/vsv12139-dpnhdmg2odfabvfn-zqgiw42wfsgbbkrc is not active
vg_kvm/vsv12137-dxtiqptvdwcrrcwa-22fkxorf6hl44evf is not active
vg_kvm/vsv12866-d37htmu48aopiafv-sli9m0lt3dz0yeyl is not active
vg_kvm/vsv12096-dz9pfno05wqq8vbg-sq8i5na5z8lrnm6n is not active
vg_kvm/vsv12363-dtlh9w3tza99quoj-dlicfndz6e3pbfu0 is not active
vg_kvm/vsv12890-dmaaydjldw3c13jk-iskdygh5pczveo3r is not active
vg_kvm/vsv12320-dqmecms9nep6muns-xmmkziafa8mz1hta is not active
vg_kvm/vsv12936-dhdfa36ovcdzfafp-ultnlmom4scugsw1 is not active
vg_kvm/vsv12964-dctbp9xgo2gl8w6i-kbw9cinhoieea8av is not active
vg_kvm/vsv12984-dwqjvkqc3aznhb4o-criyexpxvdndoscq is not active
vg_kvm/vsv12143-d3s1toagczaiq4ma-oupwnk3eg27r41ze is not active
vg_kvm/vsv13019-d5yrsi5a58bdzalc-i6mbum8zthk2arhs is not active
vg_kvm/vsv13022-djszrasae5w7xegh-ehqsutbhrwd7qgsi is not active
vg_kvm/vsv13027-dq6pg99jd2fphljg-u15x8sonbwukaree is not active
vg_kvm/vsv12041-dlsmtmfa6fp4wcuc-bfhftkdhwfqa7sqb is not active
vg_kvm/vsv13039-djtjimojqi3iaufp-csbinqtsvebzzmqx is not active
vg_kvm/vsv13061-duocptl9qdtvwubp-feryqeejht4j24ql is not active
vg_kvm/vsv13064-dexwkomdh62by80s-aymbuetu6p0btn4d is not active
vg_kvm/vsv13076-drd4nrhy4u7fq1tn-f1kt8ubk2jch4ol3 is not active
vg_kvm/vsv13082-ds9gjikqyg9nftua-rrhk4dlrr8cp3la7 is not active
vg_kvm/vsv12759-du4yducr4ghi8eun-bzivqxabwaltaddm is not active
vg_kvm/vsv12123-dzb9rktypp0jqinx-adtlzed02wpccxoa is not active
vg_kvm/vsv13118-d0lj9gpvqfmox63i-9jstjcjkmemszrla is not active
vg_kvm/vsv13121-du0r39n6wvnrclox-bviz76ig9vvexota is not active
vg_kvm/vsv13133-d2fk6lg6bsppbkcs-hwk5bmsvqxa0y0bs is not active
vg_kvm/vsv13204-dl6hzsmswetitsb4-bais6lpjbbhfkexn is not active
vg_kvm/vsv13230-dtiyrmijg8mde5xy-vobukov1qxg8bx5j is not active
vg_kvm/vsv13254-d3sdhrrgcvbwrsyp-yxaozxmt3clqzxxc is not active
vg_kvm/vsv13271-drutw4ihq774xhs6-ecpwfmzcrqy0vvsm is not active
vg_kvm/vsv13266-dmuj5cfeu2hrgfxw-2tpflycnwoedyidb is not active
vg_kvm/vsv13380-d99ciziibe7rt3es-7fkh56myy79oushw is not active
vg_kvm/vsv13487-d30yxx4wgfxcb9te-chc2bxojs7tvcwz3 is not active
vg_kvm/vsv13502-dc2oivdodzo94jj3-1qmpba9ti4zzbfeg is not active
vg_kvm/vsv13277-deudjco25w9cd3rv-re1ha5qkozses9i3 is not active
vg_kvm/vsv12208-dfqhoqmtuwzktwqm-n9s5daovhtnyvyeh is not active
vg_kvm/vsv13481-dthcwgpolombhfed-dkmesvsvmt1vem0d is not active
vg_kvm/vsv13585-ddvwhm2vcqpq66uy-1brs98bctgr6bcq9 is not active
vg_kvm/vsv13586-dadacaexxn8nkuy3-fyx8zp5mursbqhns is not active
vg_kvm/vsv13587-dc0fmskwdbkmz7mg-ra53wgfksiv7tsqk is not active
vg_kvm/vsv13569-dk6v0pyvz8eoohl5-qyndiwn8zriir75s is not active
vg_kvm/vsv13603-d66mz2amabmd63fj-rkcqmtvfnlfmywou is not active
vg_kvm/vsv13613-dykuo32mnkgf9nce-hhkhn118dhsedoc8 is not active
vg_kvm/vsv13623-dksoizdtoglihaax-23o0zltutliyoo2q is not active
vg_kvm/vsv13629-dxbpqqernfvufxrz-iv6jujdxm78hxjbn is not active
vg_kvm/vsv13610-drrehnh36oipacdf-frnumdhlt823mntg is not active
vg_kvm/vsv13654-dmlnhhqilztxff5a-4gawkysgtkze4st7 is not active
vg_kvm/vsv13669-dk3ukgidvj0l4x4x-9d3vfao5qejzecdn is not active
vg_kvm/vsv13672-d1r1608gu96b0ujo-nn7ejmxkbfce40m4 is not active
vg_kvm/vsv13689-dhpzh8w7jlwi0zza-aqizb6tbeuk9k1ca is not active
vg_kvm/vsv12477-dejmu0gihtllnj97-gaxwgicndwp25unx is not active
vg_kvm/vsv13710-dv2bktawped5fz44-0bkdtrkp8tk2vynu is not active
vg_kvm/vsv12125-d5d9pebts1rue7jt-vwnkapewjkfszked is not active
vg_kvm/vsv13718-dmimkn9h1ax3t4am-8tdnpznya2reek8g is not active
vg_kvm/vsv13545-dzaq2rjqfiyf5azl-kw35xomndhltjnrs is not active
vg_kvm/vsv13723-daleipfjwu7zm7aj-s8jo6yhxwz4efl2y is not active
vg_kvm/vsv13726-dpdqvmnzkvxkiz4y-cfudhed6m12hnlmj is not active
vg_kvm/vsv12136-d0qvvamyx5qq1g6o-awtlh6pbotvlacyc is not active
vg_kvm/vsv13258-du2kuwgkwhypcfzz-i6h00rd0exzw4b69 is not active
vg_kvm/vsv13755-dqglblzy3akyohph-wtev5tlrs5lkkejd is not active
vg_kvm/vsv13758-dhfrybljxildcky1-ktotkou3mpvxfjnq is not active
vg_kvm/vsv13759-dxqbq7phpjgoa1ed-dwtly1dkuorvlyli is not active
vg_kvm/vsv13762-di54bo3us4p8gefa-34s2uhcye1rbdbvw is not active
vg_kvm/vsv13767-dwtsyqxhqbp8fa9w-us8xvwm9q6nqkmzx is not active
vg_kvm/vsv13768-dadnlkrau2cwhlbd-cj8liz4hfolpmjfa is not active
vg_kvm/vsv13769-dt4nwlcmpfqyenob-jvpfd5jut8kvcm8u is not active
vg_kvm/vsv13781-dvckr0uqfwrsvmc6-zklf1olhlhzzfppp is not active
vg_kvm/vsv12133-dp55dttaolpbd6n8-rlhoezgituqkyrov is not active
vg_kvm/vsv12042-dnncyzlyhfxyaxkt-metx0ei0zlz3d2sn is not active
vg_kvm/lvpool is not active
vg_kvm/lvpool_tmeta is not active
vg_kvm/lvpool_tdata is not active
Locking LV i3usZzvdt59yaUKbclXDWJOFr1UhZRBaDHqs7X95DAADNmWTd9cXDfHR5aMoHLRx (EX)
activation/volume_list configuration setting not defined: Checking only host tags for vg_kvm/lvpool.
/dev/sda4: read_ahead is 256 sectors
Getting driver version
Getting target version for thin-pool
Found thin-pool target v1.21.0.
Getting target version for thin-pool
Found thin-pool target v1.21.0.
Getting target version for linear
Found linear target v1.3.0.
Getting target version for striped
Found striped target v1.6.0.
Creating vg_kvm-lvpool_tmeta
Loading table for vg_kvm-lvpool_tmeta (253:0).
Resuming vg_kvm-lvpool_tmeta (253:0).
Creating vg_kvm-lvpool_tdata
Loading table for vg_kvm-lvpool_tdata (253:1).
Resuming vg_kvm-lvpool_tdata (253:1).
global/thin_check_executable not found in config: defaulting to /usr/sbin/thin_check
global/thin_check_options not found in config: defaulting to thin_check_options = [ "-q", "--clear-needs-check-flag" ]
Executing: /usr/sbin/thin_check -q --clear-needs-check-flag /dev/mapper/vg_kvm-lvpool_tmeta
/usr/sbin/thin_check failed: 1
Check of pool vg_kvm/lvpool failed (status:1). Manual repair required!
Removing vg_kvm-lvpool_tdata (253:1)
Removing vg_kvm-lvpool_tmeta (253:0)
Unlocking /run/lock/lvm/A_vg_kvm
Unlocking /run/lock/lvm/V_vg_kvm
答案3
您可以在恢复 VG 元备份之前擦除出现错误的 PV 的前 2k。LVM 的默认元数据大小为 1MB，因此这不会影响您的数据。dd 将使标头无效，因此 LVM 会认为它是一个空磁盘，然后您可以恢复 PV 和 VG，而不会抱怨现有（无效）PV/VG 元的状态：
~]# dd if=/dev/zero bs=1k count=2 of=/dev/sdX
~]# sync # force to disk, LVM might use directio
~]# pvcreate -ff --uuid 06kvOm-xN2Y-iX1y-Tt69-LfFh-ltkG-TtRsgy --restorefile data /dev/bcache0
Physical volume "/dev/sdX" successfully created.
~]# vgcfgrestore --force data
Restored volume group data
它对我有用，请小心使用dd命令！