![将逻辑卷上的根文件系统移动到不同的磁盘](https://linux22.com/image/26677/%E5%B0%86%E9%80%BB%E8%BE%91%E5%8D%B7%E4%B8%8A%E7%9A%84%E6%A0%B9%E6%96%87%E4%BB%B6%E7%B3%BB%E7%BB%9F%E7%A7%BB%E5%8A%A8%E5%88%B0%E4%B8%8D%E5%90%8C%E7%9A%84%E7%A3%81%E7%9B%98.png)
我正在尝试将我的根 LV 移动到我的全新 SSD 上的新 VG,这让我发疯。我想我用 rsync 完成了它,但现在 grub 拒绝从 /dev/vg_ssd/lv_root 注册新的引导选项。为什么linux不像AIX那样有cplv或lvmove?
我想使用 vg_ssd/root 挂载到 / 而不是 vg_dopey/lv00。 /boot 是独立的。 Grub2/FC17。 Linux dopey 3.6.2-4.fc17.x86_64 #1 SMP 10 月 17 日星期三 02:43:21 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
lv显示
--- Logical volume ---
LV Path /dev/vg_ssd/root
LV Name root
VG Name vg_ssd
LV UUID oDms4t-cKve-Eg27-jdcW-H3Wu-kvhs-qHhJQm
LV Write Access read/write
LV Creation host, time dopey, 2012-10-22 20:25:31 -0400
LV Status available
# open 0
LV Size 32.00 GiB
Current LE 8191
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:1
--- Logical volume ---
LV Path /dev/vg_dopey/lv01
LV Name lv01
VG Name vg_dopey
LV UUID 2tSy4L-kPnC-8rSE-jXX8-Dad4-9F4v-TPVmQz
LV Write Access read/write
LV Creation host, time dopey, 2012-10-01 22:50:49 -0400
LV Status available
# open 1
LV Size 468.69 GiB
Current LE 14998
Segments 2
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:2
--- Logical volume ---
LV Path /dev/vg_dopey/lv00
LV Name lv00
VG Name vg_dopey
LV UUID SYe9Ze-XFUb-kIcu-UxEO-dhMd-ubaf-oAphsk
LV Write Access read/write
LV Creation host, time dopey, 2012-10-01 22:50:53 -0400
LV Status available
# open 1
LV Size 19.53 GiB
Current LE 625
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
/etc/fstab,在新旧 root lvs 上
#/dev/mapper/vg_dopey-lv00 / ext4 defaults 1 1
UUID=587081f1-e607-43bd-85f5-7632d833726e /boot ext4 defaults 1 2
/dev/vg_dopey/lv01 /home ext4 defaults 1 2
UUID=8dec0c61-6593-4e1d-a7b1-86de1816a601 /opt/media ext4 defaults 1 2
UUID=910763ef-317b-4c48-b92f-8f24a729ffb8 swap swap defaults 0 0
#/dev/mapper/vg_ssd-root
UUID=f7ada493-298d-4c09-8260-a8988ede1cfe / ext4 discard,noatime,errors=remount-ro 0 1
/boot/grub2/grub.cfg
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub2-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#
### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
load_env
fi
set default="${saved_entry}"
if [ x"${feature_menuentry_id}" = xy ]; then
menuentry_id_option="--id"
else
menuentry_id_option=""
fi
export menuentry_id_option
if [ "${prev_saved_entry}" ]; then
set saved_entry="${prev_saved_entry}"
save_env saved_entry
set prev_saved_entry=
save_env prev_saved_entry
set boot_once=true
fi
function savedefault {
if [ -z "${boot_once}" ]; then
saved_entry="${chosen}"
save_env saved_entry
fi
}
function load_video {
if [ x$feature_all_video_module = xy ]; then
insmod all_video
else
insmod efi_gop
insmod efi_uga
insmod ieee1275_fb
insmod vbe
insmod vga
insmod video_bochs
insmod video_cirrus
fi
}
if [ x$feature_default_font_path = xy ] ; then
font=unicode
else
insmod part_msdos
insmod part_msdos
insmod lvm
insmod ext2
set root='lvm/vg_dopey-lv00'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint='lvm/vg_dopey-lv00' 67deba56-4839-41c3-8c51-46185c8efd0e
else
search --no-floppy --fs-uuid --set=root 67deba56-4839-41c3-8c51-46185c8efd0e
fi
font="/usr/share/grub/unicode.pf2"
fi
if loadfont $font ; then
set gfxmode=auto
load_video
insmod gfxterm
set locale_dir=$prefix/locale
set lang=en_US
insmod gettext
fi
terminal_output gfxterm
set timeout=5
### END /etc/grub.d/00_header ###
### BEGIN /etc/grub.d/10_linux ###
menuentry 'Fedora' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.6.2-4.fc17.x86_64 ...'
linux /vmlinuz-3.6.2-4.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.6.2-4.fc17.x86_64.img
}
submenu 'Advanced options for Fedora' $menuentry_id_option 'gnulinux-advanced-67deba56-4839-41c3-8c51-46185c8efd0e' {
menuentry 'Fedora, with Linux 3.6.2-4.fc17.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.6.2-4.fc17.x86_64-advanced-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.6.2-4.fc17.x86_64 ...'
linux /vmlinuz-3.6.2-4.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.6.2-4.fc17.x86_64.img
}
menuentry 'Fedora, with Linux 3.6.2-4.fc17.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.6.2-4.fc17.x86_64-recovery-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.6.2-4.fc17.x86_64 ...'
linux /vmlinuz-3.6.2-4.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro single rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.6.2-4.fc17.x86_64.img
}
menuentry 'Fedora, with Linux 3.6.1-1.fc17.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.6.1-1.fc17.x86_64-advanced-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.6.1-1.fc17.x86_64 ...'
linux /vmlinuz-3.6.1-1.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.6.1-1.fc17.x86_64.img
}
menuentry 'Fedora, with Linux 3.6.1-1.fc17.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.6.1-1.fc17.x86_64-recovery-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.6.1-1.fc17.x86_64 ...'
linux /vmlinuz-3.6.1-1.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro single rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.6.1-1.fc17.x86_64.img
}
menuentry 'Fedora, with Linux 3.5.6-1.fc17.x86_64' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.6-1.fc17.x86_64-advanced-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.5.6-1.fc17.x86_64 ...'
linux /vmlinuz-3.5.6-1.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.5.6-1.fc17.x86_64.img
}
menuentry 'Fedora, with Linux 3.5.6-1.fc17.x86_64 (recovery mode)' --class fedora --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-3.5.6-1.fc17.x86_64-recovery-67deba56-4839-41c3-8c51-46185c8efd0e' {
load_video
set gfxpayload=keep
insmod gzio
insmod part_msdos
insmod ext2
set root='hd0,msdos6'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos6 --hint-efi=hd0,msdos6 --hint-baremetal=ahci0,msdos6 --hint='hd0,msdos6' 587081f1-e607-43bd-85f5-7632d833726e
else
search --no-floppy --fs-uuid --set=root 587081f1-e607-43bd-85f5-7632d833726e
fi
echo 'Loading Linux 3.5.6-1.fc17.x86_64 ...'
linux /vmlinuz-3.5.6-1.fc17.x86_64 root=/dev/mapper/vg_dopey-lv00 ro single rd.md=0 rd.dm=0 KEYTABLE=us SYSFONT=True rd.luks=0 LANG=en_US.UTF-8 rd.lvm.lv=vg_dopey/lv00 rhgb quiet
echo 'Loading initial ramdisk ...'
initrd /initramfs-3.5.6-1.fc17.x86_64.img
}
}
### END /etc/grub.d/10_linux ###
### BEGIN /etc/grub.d/20_linux_xen ###
### END /etc/grub.d/20_linux_xen ###
### BEGIN /etc/grub.d/20_ppc_terminfo ###
### END /etc/grub.d/20_ppc_terminfo ###
### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Microsoft Windows XP Professional (on /dev/sda1)' --class windows --class os $menuentry_id_option 'osprober-chain-AA0C2EE80C2EAF6F' {
insmod part_msdos
insmod ntfs
set root='hd0,msdos1'
if [ x$feature_platform_search_hint = xy ]; then
search --no-floppy --fs-uuid --set=root --hint-bios=hd0,msdos1 --hint-efi=hd0,msdos1 --hint-baremetal=ahci0,msdos1 --hint='hd0,msdos1' AA0C2EE80C2EAF6F
else
search --no-floppy --fs-uuid --set=root AA0C2EE80C2EAF6F
fi
drivemap -s (hd0) ${root}
chainloader +1
}
### END /etc/grub.d/30_os-prober ###
### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries. Simply type the
# menu entries you want to add after this comment. Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###
### BEGIN /etc/grub.d/41_custom ###
if [ -f ${config_directory}/custom.cfg ]; then
source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f $prefix/custom.cfg ]; then
source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
山
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime,seclabel)
devtmpfs on /dev type devtmpfs (rw,nosuid,seclabel,size=2013244k,nr_inodes=503311,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,seclabel,gid=5,mode=620,ptmxmode=000)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev,seclabel)
tmpfs on /run type tmpfs (rw,nosuid,nodev,seclabel,mode=755)
/dev/mapper/vg_dopey-lv00 on / type ext4 (rw,noatime,seclabel,discard,errors=remount-ro,data=ordered)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
selinuxfs on /sys/fs/selinux type selinuxfs (rw,relatime)
tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,seclabel,mode=755)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/net_cls type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=27,pgrp=1,timeout=300,minproto=5,maxproto=5,direct)
mqueue on /dev/mqueue type mqueue (rw,relatime,seclabel)
tmpfs on /media type tmpfs (rw,nosuid,nodev,noexec,relatime,seclabel,mode=755)
debugfs on /sys/kernel/debug type debugfs (rw,relatime)
configfs on /sys/kernel/config type configfs (rw,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,seclabel)
/dev/sdc1 on /opt/media type ext4 (rw,relatime,seclabel,data=ordered)
/dev/sda6 on /boot type ext4 (rw,relatime,seclabel,data=ordered)
/dev/mapper/vg_dopey-lv01 on /home type ext4 (rw,relatime,seclabel,data=ordered)
gvfs-fuse-daemon on /run/user/me/gvfs type fuse.gvfs-fuse-daemon (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
fusectl on /sys/fs/fuse/connections type fusectl (rw,relatime)
答案1
pvmove
会将 VG 内的 LV 从现有 PV 移动到另一个 PV。
这可能会解决你的问题...
答案2
你的 fstab 听起来坏了,只需修改/etc/fstab
,并将安装根目录的行更改为新的,可能是 UUID=XXX,
要查找所有 uuid,请blkid
以 root 身份运行。
如果您的 grub.cfg 已过期,请使用grub-mkconfig -o /boot/grub/grub.cfg
重新生成 grub.cfg
编辑
请注意,当 grub 扫描根设备时,它会将当前安装的设备作为根设备。您需要手动修改grub.cfg并从SSD启动,然后grub-mkconfig
再次运行