Proxmox ubuntu虚拟机扩容教程

[Triment]

在proxmox扩容磁盘后，需要在虚拟机中进行一些操作才能扩容

1、运行fdisk -l

root@ubuntu:~#  fdisk -l
Disk /dev/loop0: 63.95 MiB, 67051520 bytes, 130960 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: 87.02 MiB, 91246592 bytes, 178216 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: 63.91 MiB, 67010560 bytes, 130880 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: 87.03 MiB, 91258880 bytes, 178240 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: 177.95 MiB, 186589184 bytes, 364432 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: 177.95 MiB, 186593280 bytes, 364440 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: 39.1 MiB, 40996864 bytes, 80072 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: 38.73 MiB, 40615936 bytes, 79328 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
GPT PMBR size mismatch (419430399 != 838860799) will be corrected by write.
The backup GPT table is not on the end of the device.


Disk /dev/sda: 400 GiB, 429496729600 bytes, 838860800 sectors
Disk model: QEMU 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: 21A12F61-5C76-4E93-872C-AB0978CD7F74

Device       Start       End   Sectors   Size Type
/dev/sda1     2048   2203647   2201600     1G EFI System
/dev/sda2  2203648   6397951   4194304     2G Linux filesystem
/dev/sda3  6397952 419428351 413030400 196.9G Linux filesystem


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 98.47 GiB, 105734209536 bytes, 206512128 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

2、运行parted /dev/sda进行扩容分区

root@ubuntu:~#parted /dev/sda
GNU Parted 3.4
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) resizepart 3 100%
Warning: Not all of the space available to /dev/sda appears to be used, you can fix the GPT to use all of the space (an extra 419430400 blocks) or
continue with the current setting? 
Fix/Ignore? fix                                                           
Partition number? 3                                                       
End?  [215GB]?                                                            
(parted)                                                                  
(parted) resizepart 3 100%                                                
(parted) quit
Information: You may need to update /etc/fstab.

3、再看一下fdisk -l

Disk /dev/loop0: 63.95 MiB, 67051520 bytes, 130960 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: 87.02 MiB, 91246592 bytes, 178216 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: 63.91 MiB, 67010560 bytes, 130880 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: 87.03 MiB, 91258880 bytes, 178240 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: 177.95 MiB, 186589184 bytes, 364432 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: 177.95 MiB, 186593280 bytes, 364440 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: 39.1 MiB, 40996864 bytes, 80072 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: 38.73 MiB, 40615936 bytes, 79328 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: 400 GiB, 429496729600 bytes, 838860800 sectors
Disk model: QEMU 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: 21A12F61-5C76-4E93-872C-AB0978CD7F74

Device       Start       End   Sectors   Size Type
/dev/sda1     2048   2203647   2201600     1G EFI System
/dev/sda2  2203648   6397951   4194304     2G Linux filesystem
/dev/sda3  6397952 838860766 832462815 396.9G Linux filesystem


Disk /dev/mapper/ubuntu--vg-ubuntu--lv: 98.47 GiB, 105734209536 bytes, 206512128 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

4、运行 pvresize /dev/sda3

root@ubuntu:~# pvresize /dev/sda3
  Physical volume "/dev/sda3" changed
  1 physical volume(s) resized or updated / 0 physical volume(s) not resized

5、运行 lvresize --extents +100%FREE --resizefs /dev/mapper/ubuntu--vg-ubuntu--lv 扩张逻辑大小

root@ubuntu:~# lvresize --extents +100%FREE --resizefs /dev/mapper/ubuntu--vg-ubuntu--lv
  Size of logical volume ubuntu-vg/ubuntu-lv changed from 98.47 GiB (25209 extents) to <396.95 GiB (101618 extents).
  Logical volume ubuntu-vg/ubuntu-lv successfully resized.
resize2fs 1.46.5 (30-Dec-2021)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 13, new_desc_blocks = 50
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 104056832 (4k) blocks long.

6、再次查看，成功

root@ubuntu:~# df -h
Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              297M  1.4M  295M   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  391G   34G  340G  10% /
tmpfs                              1.5G     0  1.5G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/sda2                          2.0G  253M  1.6G  14% /boot
/dev/sda1                          1.1G  6.1M  1.1G   1% /boot/efi
tmpfs                              297M  4.0K  297M   1% /run/user/1000
overlay                            391G   34G  340G  10% /var/lib/docker/overlay2/4c9357912f040db8dcc205026125f8f3b60b0a76c63a8abd42785eb1f9b1328b/merged
overlay                            391G   34G  340G  10% /var/lib/docker/overlay2/2cf57926ae60af81c063858fc63619a30111930fbf37d82080e7af43894fe257/merged
tmpfs                              2.8G   12K  2.8G   1% /var/snap/microk8s/common/var/lib/kubelet/pods/2a00ddf5-402a-451f-a406-fef5ae5b823a/volumes/kubernetes.io~projected/kube-api-access-6ktmt
overlay                            391G   34G  340G  10% /var/lib/docker/overlay2/9296c1615ea942fc0162c8a28b2e4b8dc2439cd3129b7e9f6379508443d8eefe/merged