我需要添加默认的 ubuntu lvm 分区 +20GB 空间。我该怎么做？您可以在下面看到 lsbkl 命令的输出。这是我的 Virtualbox VM，不是生产服务器，所有这些磁盘和分区都是免费的，包括 raid5。我可以将所有这些用于扩展目的吗？我应该遵循哪些步骤来实现它？
rebrainme2@ubuntu2:~$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 43.6M 1 loop /snap/snapd/14978
loop1 7:1 0 43.6M 1 loop /snap/snapd/15177
loop2 7:2 0 55.5M 1 loop /snap/core18/2344
loop3 7:3 0 67.9M 1 loop /snap/lxd/22526
loop4 7:4 0 61.9M 1 loop /snap/core20/1361
loop5 7:5 0 67.2M 1 loop /snap/lxd/21835
loop6 7:6 0 61.9M 1 loop /snap/core20/1376
loop7 7:7 0 55.5M 1 loop /snap/core18/2284
sda 8:0 0 10G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1G 0 part /boot
└─sda3 8:3 0 9G 0 part
└─ubuntu--vg-ubuntu--lv 253:2 0 9G 0 lvm /
sdb 8:16 0 8G 0 disk
├─sdb1 8:17 0 2G 0 part /mnt/sdb1
├─sdb2 8:18 0 2G 0 part /mnt/disk
├─sdb3 8:19 0 2G 0 part /mnt/sdb3
└─sdb4 8:20 0 2G 0 part /mnt/sdb4
sdc 8:32 0 8G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sdd 8:48 0 2G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sde 8:64 0 2G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sdf 8:80 0 2G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sdg 8:96 0 2G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sdh 8:112 0 5G 0 disk
└─vg--rebrain-lv--rebrain 253:1 0 5G 0 lvm /mnt/lvm
sdi 8:128 0 2G 0 disk
└─md0 9:0 0 10G 0 raid5 /mnt/raid5
sdj 8:144 0 5G 0 disk
└─vg--test-lv--test 253:0 0 5G 0 lvm /mnt/lv-test
sr0 11:0 1 1024M 0 rom
/dev/disk/by-uuid/2d747eec-1c31-4c12-849c-efe362e3245e /boot ext4 defaults 0 1
/swap.img none swap sw 0 0
UUID=a6c59d0e-37a7-4532-b843-6025dabef69f /mnt/sdb1 ext4 defaults 0 2
/dev/sdb2 /mnt/disk btrfs defaults 0 2
UUID=55165d2b-f3b5-46b2-af04-7366861c82b6 /mnt/sdb3 xfs defaults 0 2
UUID=1B74-0C7D /mnt/sdb4 vfat defaults 0 2
UUID=33fbef0a-0b91-41e9-ac7d-7d554797341c /mnt/raid5 ext4 defaults 0 2
UUID=60cd605a-dc94-452f-abe4-203079ac2e67 /mnt/lvm ext4 defaults 0 2
UUID=ed038f9c-896a-4aaf-a703-5134783701ab /mnt/lv-test ext4 defaults 0 2
rebrainme2@ubuntu2:~$ sudo vgdisplay
[sudo] password for rebrainme2:
--- Volume group ---
VG Name vg-test
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 6
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size <5.00 GiB
PE Size 4.00 MiB
Total PE 1279
Alloc PE / Size 1279 / <5.00 GiB
Free PE / Size 0 / 0
VG UUID ZCjGyZ-n1Rs-bT8d-z0cg-k8fO-9d2J-Fonggh
--- Volume group ---
VG Name vg-rebrain
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 9
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size <5.00 GiB
PE Size 4.00 MiB
Total PE 1279
Alloc PE / Size 1279 / <5.00 GiB
Free PE / Size 0 / 0
VG UUID Qu97rM-Fint-1yaA-skTo-F3gg-NOrE-1Mvj7q
--- Volume group ---
VG Name ubuntu-vg
System ID
Format lvm2
Metadata Areas 1
Metadata Sequence No 2
VG Access read/write
VG Status resizable
MAX LV 0
Cur LV 1
Open LV 1
Max PV 0
Cur PV 1
Act PV 1
VG Size <9.00 GiB
PE Size 4.00 MiB
Total PE 2303
Alloc PE / Size 2303 / <9.00 GiB
Free PE / Size 0 / 0
VG UUID XVpMjv-fuIw-UMG9-eeZN-2E09-sODM-kxF3I8
rebrainme2@ubuntu2:~$ sudo pvdisplay
--- Physical volume ---
PV Name /dev/sdj
VG Name vg-test
PV Size 5.00 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1279
Free PE 0
Allocated PE 1279
PV UUID N5fWom-E678-uzKn-c4Dt-ielb-57GN-9h2kfm
--- Physical volume ---
PV Name /dev/sdh
VG Name vg-rebrain
PV Size 5.00 GiB / not usable 4.00 MiB
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 1279
Free PE 0
Allocated PE 1279
PV UUID osioC0-jmJe-OiLG-73Qm-63od-JcTm-VW2cCy
--- Physical volume ---
PV Name /dev/sda3
VG Name ubuntu-vg
PV Size <9.00 GiB / not usable 0
Allocatable yes (but full)
PE Size 4.00 MiB
Total PE 2303
Free PE 0
Allocated PE 2303
PV UUID aZUyYt-IujY-wAjp-Zrdu-PsV5-aVv6-Rqw0ND
答案1
好的，伙计们，我自己做了。这就是我所做的，也许对任何人都有用。以防万一，我想用我所有可用的磁盘扩展 ubuntu 默认逻辑卷。
删除逻辑卷
sudo lvremove vg-test/lv-test sudo lvremove vg-rebrain/lv-rebrain
删除卷组
sudo vgremove vg-rebrain sudo vgremove vg-test
执行pvscan检查所有pv名称
扩展 ubuntu 默认 vg
sudo vgextend ubuntu-vg /dev/sdh sudo vgextend ubuntu-vg /dev/sdj
扩展逻辑卷
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv
调整文件系统大小
sudo resize2fs /dev/ubuntu-vg/ubuntu-lv
然后我决定将所有磁盘添加到当前 raid5 大规模 /dev/md0
sudo mdadm --add /dev/md0 /dev/sdb4
sudo mdadm --add /dev/md0 /dev/sdb3
sudo mdadm --add /dev/md0 /dev/sdb1
sudo mdadm --grow --raid-devices=9 /dev/md0
为了监控这个过程我使用了mdadm --detail /dev/md0
在此之后我决定将所有 raid5 磁盘空间添加到逻辑卷 ubuntu-lv：
sudo pvcreate /dev/md0
sudo vgextend ubuntu-vg /dev/md0
sudo lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv