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这些是我正在尝试的步骤从这个答案

我跑的步骤:

  1. 运行以下命令获取PV(物理量)姓名(前任:/dev/sda1
sudo pvs
tini-wini # pvs
  PV         VG        Fmt  Attr PSize  PFree
  /dev/sda3  ubuntu-vg lvm2 a--  <9,00g    0
tini-wini #
  1. 调整PV大小
sudo pvresize /dev/sda3
tini-wini # sudo pvresize /dev/sda3
  Physical volume "/dev/sda3" changed
  1 physical volume(s) resized or updated / 0 physical volume(s) not resized
tini-wini #
  1. 运行以下命令获取根逻辑卷名称(行的文件系统值/;例如/dev/mapper/ubuntu--vg-root:)
df -h
tini-wini # df -h
Filesystem                         Size  Used Avail Use% Mounted on
udev                               948M     0  948M   0% /dev
tmpfs                              199M  1,1M  198M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  8,8G  8,2G  211M  98% /
tmpfs                              992M     0  992M   0% /dev/shm
tmpfs                              5,0M     0  5,0M   0% /run/lock
tmpfs                              992M     0  992M   0% /sys/fs/cgroup
/dev/loop0                          45M   45M     0 100% /snap/snapd/15314
/dev/loop1                          62M   62M     0 100% /snap/core20/1405
/dev/loop2                          62M   62M     0 100% /snap/core20/1376
/dev/loop3                          68M   68M     0 100% /snap/lxd/22753
/dev/loop4                          56M   56M     0 100% /snap/core18/2344
/dev/loop5                          68M   68M     0 100% /snap/lxd/22526
/dev/loop6                          44M   44M     0 100% /snap/snapd/15177
/dev/loop7                          56M   56M     0 100% /snap/core18/2253
/dev/sda2                          976M  207M  703M  23% /boot
tmpfs                              199M     0  199M   0% /run/user/1000
tini-wini #
  1. 扩展逻辑卷:
sudo lvextend -r -l +100%FREE /dev/mapper/ubuntu--vg-root
tini-wini # lvextend -r -l +100%FREE /dev/mapper/ubuntu--vg-ubuntu--lv
  Size of logical volume ubuntu-vg/ubuntu-lv unchanged from <9,00 GiB (2303 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.
resize2fs 1.45.5 (07-Jan-2020)
The filesystem is already 2358272 (4k) blocks long.  Nothing to do!

tini-wini #

通过lsblk命令,它告诉我磁盘中有空间。

tini-wini # lsblk
NAME                      MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
loop0                       7:0    0 44,7M  1 loop /snap/snapd/15314
loop1                       7:1    0 61,9M  1 loop /snap/core20/1405
loop2                       7:2    0 61,9M  1 loop /snap/core20/1376
loop3                       7:3    0 67,8M  1 loop /snap/lxd/22753
loop4                       7:4    0 55,5M  1 loop /snap/core18/2344
loop5                       7:5    0 67,9M  1 loop /snap/lxd/22526
loop6                       7:6    0 43,6M  1 loop /snap/snapd/15177
loop7                       7:7    0 55,5M  1 loop /snap/core18/2253
sda                         8:0    0   21G  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 253:0    0    9G  0 lvm  /
sr0                        11:0    1 1024M  0 rom
tini-wini #

在这种情况下我需要做什么?

更新

fdisk -l

Disk /dev/loop0: 55,5 MiB, 58183680 bytes, 113640 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 /dev/loop1: 67,94 MiB, 71221248 bytes, 139104 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 /dev/loop2: 67,83 MiB, 71106560 bytes, 138880 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 /dev/loop3: 44,65 MiB, 46804992 bytes, 91416 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 /dev/loop4: 61,92 MiB, 64901120 bytes, 126760 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 /dev/loop5: 55,53 MiB, 58212352 bytes, 113696 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 /dev/loop6: 43,64 MiB, 45748224 bytes, 89352 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 /dev/loop7: 61,92 MiB, 64901120 bytes, 126760 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 /dev/sda: 21 GiB, 22548578304 bytes, 44040192 sectors
Disk model: VBOX HARDDISK
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 363D35B2-1971-493B-B67D-6C40297B89AB

Device       Start      End  Sectors Size Type
/dev/sda1     2048     4095     2048   1M BIOS boot
/dev/sda2     4096  2101247  2097152   1G Linux filesystem
/dev/sda3  2101248 20969471 18868224   9G Linux filesystem


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 8,102 GiB, 9659482112 bytes, 18866176 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
tini-wini #

答案1

根据评论,该过程似乎不完整。这是在 VirtualBox VM 上调整 LV 大小时需要发生的事件序列。

  1. 从 VirtualBox 级别开始。 VirtualBox 将虚拟机磁盘作为主机系统上的单独文件保存。将磁盘大小更新为所需的值。
  2. 在来宾虚拟机上,内核将识别磁盘大小的增加,但尚不可用。您需要使用fdiskgdisk、 或gparted(或其他 GUI 等效工具)等工具从额外空间创建分区。如果可用空间紧随现有分区,您还可以扩展现有分区。
  3. 接下来是最低的 LVM 级别 - 物理卷。如果创建了新分区,请运行pvcreate以从中创建新的 PV。如果扩展了分区,请运行pvresize以获取更改。
  4. 进入 LVM 的第二层——卷组。如果添加了 PV,您需要使用 将其添加到卷组中vgextend。如果调整了 PV 的大小,则应自动获取更改。

此时,您应该看到目标卷组下有一些可用空间。

  1. 接下来是 LVM 的顶层——逻辑卷。使用lvextend从卷组分配可用空间来扩展所需的 LV 。使用诸如 之类的命令lsblk来确定要扩展哪个 LV。
  2. 最后一步是告诉 LV 上的文件系统占用新空间。lvextend可以使用该--resizefs选项管理多个文件系统。否则,您可以使用特定于文件系统的工具来扩展它(resize2fs对于 ext2/3/4、xfs_growfsXFS 等)。

您现在应该拥有一个具有所需额外存储空间量的文件系统。

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