如何將邏輯卷擴展到 100%？

我有驅動器 5GB。我通過命令sudo lvcreate -L +2GB -n lv-test vg-test創建了 pv，而不是 vg，並在邏輯卷大小為 2GB 之後 。比我格式化這個卷sudo mkfs.ext4 /dev/vg-test/lv-test並掛載它sudo mkdir -p /mnt/lv-test 現在我想將此邏輯卷擴展到 100%FREE（到所有大小的磁碟- 5GB）。但是當我lvextend 100%FREE /dev/vg-test/lv-test時，LV 只擴展了 1 GB。現在是 3GB。怎麼了？如何將其擴展到 5GB？

user@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
 PE Size               4.00 MiB
 Total PE              1279
 Free PE               512
 Allocated PE          767
 PV UUID               N5fWom-E678-uzKn-c4Dt-ielb-57GN-9h2kfm
user@ubuntu2:~$ sudo vgdisplay
 --- Volume group ---
 VG Name               vg-test
 System ID
 Format                lvm2
 Metadata Areas        1
 Metadata Sequence No  3
 VG Access             read/write
 VG Status             resizable
 MAX LV                0
 Cur LV                1
 Open LV               0
 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       767 / <3.00 GiB
 Free  PE / Size       512 / 2.00 GiB
 VG UUID               ZCjGyZ-n1Rs-bT8d-z0cg-k8fO-9d2J-Fonggh
user@ubuntu2:~$ sudo lvdisplay
 --- Logical volume ---
 LV Path                /dev/vg-test/lv-test
 LV Name                lv-test
 VG Name                vg-test
 LV UUID                GYtquF-h2H7-Ys2k-ec9G-BH00-ToTj-NY2Vdo
 LV Write Access        read/write
 LV Creation host, time ubuntu2, 2022-02-21 20:46:54 +0000
 LV Status              available
 # open                 0
 LV Size                <3.00 GiB
 Current LE             767
 Segments               1
 Allocation             inherit
 Read ahead sectors     auto
 - currently set to     256
 Block device           253:2
user@ubuntu2:~$ sudo lvextend -l 100%FREE vg-test/lv-test
 New size given (512 extents) not larger than existing size (767 extents)

您想添加所有可用空間，因此需要+：

lvextend -l +100%FREE /dev/vg-test/lv-test

沒有那個，你要求 LV 只佔用可用空間。

引用自：https://unix.stackexchange.com/questions/691627