Vagrantfile, который создаст ВМ с 2 доп.дисками Выполняемые команды и вывод: Уменьшаем корневой раздел vagrant@system:~$ sudo -s
root@system:/home/vagrant# pvscan
PV /dev/sda3 VG ubuntu-vg lvm2 [<17.78 GiB / <7.78 GiB free]
Total: 1 [<17.78 GiB] / in use: 1 [<17.78 GiB] / in no VG: 0 [0 ]
root@system:/home/vagrant# pvcreate /dev/sd{b,c}
Physical volume "/dev/sdb" successfully created.
Physical volume "/dev/sdc" successfully created.
root@system:/home/vagrant# vgcreate vg_root /dev/sd{b,c}
Volume group "vg_root" successfully created
root@system:/home/vagrant# lvcreate -n lvroot -l 100%FREE vg_root
Logical volume "lvroot" created.
root@system:/home/vagrant# blkid
/dev/sda2: UUID="1923d2c9-801b-497c-afb2-917305464a79" TYPE="ext4" PARTUUID="d7534763-60d0-41f4-b860-131a1ad9bad6"
/dev/sda3: UUID="kN99w0-ue9s-IE9D-tR0V-Rlq5-n7B4-UYxneR" TYPE="LVM2_member" PARTUUID="a669b806-85df-4ec7-851b-8cccbb4ecfe8"
/dev/mapper/ubuntu--vg-ubuntu--lv: UUID="442cdf96-b951-403a-abd4-5c61efb900e9" TYPE="ext4"
/dev/loop0: TYPE="squashfs"
/dev/loop1: TYPE="squashfs"
/dev/loop2: TYPE="squashfs"
/dev/sda1: PARTUUID="af0a3b42-c18c-45b2-b12d-ecb7f638f4b2"
/dev/sdb: UUID="PDF5DD-Hm5I-qlw4-26L7-Pbdc-5Glz-eazFzX" TYPE="LVM2_member"
/dev/sdc: UUID="9HacTj-UJyk-mec6-prGS-na4T-q1AL-EkFSt3" TYPE="LVM2_member"
Копируем корень в примотированный lvroot и меняем корень загрузки root@system:/home/vagrant# mkfs.ext4 /dev/vg_root/lvroot
mke2fs 1.45.5 (07-Jan-2020)
Creating filesystem with 2095104 4k blocks and 524288 inodes
Filesystem UUID: 13c95e5c-a387-4033-ae54-63b714478e6c
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
root@system:/home/vagrant# mount /dev/vg_root/lvroot /mnt
root@system:/home/vagrant# cp -ax / /mnt
root@system:/home/vagrant# ls /mnt/
bin dev home lib32 libx32 media opt root sbin srv sys usr var
boot etc lib lib64 lost+found mnt proc run snap swap.img tmp vagrant
root@system:/home/vagrant# for i in /proc/ /sys/ /dev/ /run/ /boot/; do mount --bind $i /mnt/$i; done
root@system:/home/vagrant# chroot /mnt
root@system:/# grub-mkconfig -o /boot/grub/grub.cfg
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-148-generic
Found initrd image: /boot/initrd.img-5.4.0-148-generic
done
root@system:/home/vagrant# reboot
root@system:/home/vagrant# df -h
Filesystem Size Used Avail Use% Mounted on
udev 444M 0 444M 0% /dev
tmpfs 98M 944K 97M 1% /run
/dev/mapper/vg_root-lvroot 7.8G 7.0G 392M 95% /
tmpfs 489M 0 489M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 489M 0 489M 0% /sys/fs/cgroup
/dev/loop0 50M 50M 0 100% /snap/snapd/18357
/dev/loop3 64M 64M 0 100% /snap/core20/1891
/dev/loop2 92M 92M 0 100% /snap/lxd/24061
/dev/loop1 54M 54M 0 100% /snap/snapd/19122
/dev/loop4 64M 64M 0 100% /snap/core20/1828
/dev/sda2 1.7G 108M 1.5G 7% /boot
tmpfs 98M 0 98M 0% /run/user/1000
Изменяем размер предыдущего тома root@system:/home/vagrant# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 49.9M 1 loop /snap/snapd/18357
loop1 7:1 0 53.2M 1 loop /snap/snapd/19122
loop2 7:2 0 91.9M 1 loop /snap/lxd/24061
loop3 7:3 0 63.5M 1 loop /snap/core20/1891
loop4 7:4 0 63.3M 1 loop /snap/core20/1828
sda 8:0 0 19.5G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 17.8G 0 part
└─ubuntu--vg-ubuntu--lv 253:1 0 10G 0 lvm
sdb 8:16 0 4G 0 disk
└─vg_root-lvroot 253:0 0 8G 0 lvm /
sdc 8:32 0 4G 0 disk
└─vg_root-lvroot 253:0 0 8G 0 lvm /
root@system:/home/vagrant# fsck.ext4 /dev/ubuntu-vg/ubuntu-lv
e2fsck 1.45.5 (07-Jan-2020)
/dev/ubuntu-vg/ubuntu-lv: clean, 70366/655360 files, 1230864/2621440 blocks
root@system:/home/vagrant# resize2fs -p /dev/ubuntu-vg/ubuntu-lv 8G
resize2fs 1.45.5 (07-Jan-2020)
Please run 'e2fsck -f /dev/ubuntu-vg/ubuntu-lv' first.
root@system:/home/vagrant# e2fsck -f /dev/ubuntu-vg/ubuntu-lv
e2fsck 1.45.5 (07-Jan-2020)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/ubuntu-vg/ubuntu-lv: 70366/655360 files (0.2% non-contiguous), 1230864/2621440 blocks
root@system:/home/vagrant# resize2fs -p /dev/ubuntu-vg/ubuntu-lv 8G
resize2fs 1.45.5 (07-Jan-2020)
Resizing the filesystem on /dev/ubuntu-vg/ubuntu-lv to 2097152 (4k) blocks.
Begin pass 2 (max = 23)
Relocating blocks XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Begin pass 3 (max = 80)
Scanning inode table XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Begin pass 4 (max = 11140)
Updating inode references XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
The filesystem on /dev/ubuntu-vg/ubuntu-lv is now 2097152 (4k) blocks long.
root@system:/home/vagrant# lvreduce --size 8G /dev/ubuntu-vg/ubuntu-lv
WARNING: Reducing active logical volume to 8.00 GiB.
THIS MAY DESTROY YOUR DATA (filesystem etc.)
Do you really want to reduce ubuntu-vg/ubuntu-lv? [y/n]: y
Size of logical volume ubuntu-vg/ubuntu-lv changed from 10.00 GiB (2560 extents) to 8.00 GiB (2048 extents).
Logical volume ubuntu-vg/ubuntu-lv successfully resized.
root@system:/home/vagrant# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 49.9M 1 loop /snap/snapd/18357
loop1 7:1 0 53.2M 1 loop /snap/snapd/19122
loop2 7:2 0 91.9M 1 loop /snap/lxd/24061
loop3 7:3 0 63.5M 1 loop /snap/core20/1891
loop4 7:4 0 63.3M 1 loop /snap/core20/1828
sda 8:0 0 19.5G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 17.8G 0 part
└─ubuntu--vg-ubuntu--lv 253:1 0 8G 0 lvm
sdb 8:16 0 4G 0 disk
└─vg_root-lvroot 253:0 0 8G 0 lvm /
sdc 8:32 0 4G 0 disk
└─vg_root-lvroot 253:0 0 8G 0 lvm /
Возвращаем ФС на исходное место root@system:/home/vagrant# mkfs.ext4 /dev/ubuntu-vg/ubuntu-lv
mke2fs 1.45.5 (07-Jan-2020)
/dev/ubuntu-vg/ubuntu-lv contains a ext4 file system
last mounted on / on Sun May 21 15:32:01 2023
Proceed anyway? (y,N) y
Creating filesystem with 2097152 4k blocks and 524288 inodes
Filesystem UUID: ccbe4f06-946d-4ccf-9515-37bf3fb90a0a
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
root@system:/home/vagrant# mount /dev/ubuntu-vg/ubuntu-lv /mnt/
root@system:/home/vagrant# cp -ax / /mnt
root@system:/home/vagrant# for i in /dev/ /proc/ /sys/ /boot/ /run/; do mount --bind $i /mnt$i; done
root@system:/home/vagrant# chroot /mnt/
root@system:/# grub-mkconfig -o /boot/grub/grub.cfg
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/init-select.cfg'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.4.0-148-generic
Found initrd image: /boot/initrd.img-5.4.0-148-generic
done
root@system:/# reboot
vagrant@system:~$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 444M 0 444M 0% /dev
tmpfs 98M 952K 97M 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 7.8G 4.5G 3.0G 61% /
tmpfs 489M 0 489M 0% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 489M 0 489M 0% /sys/fs/cgroup
/dev/loop0 50M 50M 0 100% /snap/snapd/18357
/dev/loop3 54M 54M 0 100% /snap/snapd/19122
/dev/loop1 64M 64M 0 100% /snap/core20/1891
/dev/loop2 92M 92M 0 100% /snap/lxd/24061
/dev/loop4 64M 64M 0 100% /snap/core20/1828
/dev/sda2 1.7G 108M 1.5G 7% /boot
tmpfs 98M 0 98M 0% /run/user/1000
root@system:/home/vagrant# pvcreate /dev/sd{b,c}
Physical volume "/dev/sdb" successfully created.
Physical volume "/dev/sdc" successfully created.
root@system:/home/vagrant# vgcreate vg_var /dev/sd{b,c}
Volume group "vg_var" successfully created
root@system:/home/vagrant# lvcreate -n var_mirror -L 2G -m1 vg_var
Logical volume "var_mirror" created.
root@system:/home/vagrant# mkfs.ext4 /dev/vg_var/var_mirror
mke2fs 1.45.5 (07-Jan-2020)
Creating filesystem with 524288 4k blocks and 131072 inodes
Filesystem UUID: 3670074b-c34f-4597-a266-2732cca04003
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
root@system:/home/vagrant# mount /dev/vg_var/var_mirror /mnt
root@system:/home/vagrant# cp -aRx /var /mnt
root@system:/home/vagrant# umount /mnt/
root@system:/home/vagrant# mount /dev/vg_var/var_mirror /var
root@system:/home/vagrant# echo "`blkid | grep var: | awk '{print $2}'` /var ext4 defaults 0 0" >> /etc/fstab
root@system:/home/vagrant# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 91.9M 1 loop /snap/lxd/24061
loop1 7:1 0 63.3M 1 loop /snap/core20/1828
loop2 7:2 0 49.9M 1 loop /snap/snapd/18357
loop3 7:3 0 53.2M 1 loop /snap/snapd/19122
loop4 7:4 0 63.5M 1 loop /snap/core20/1891
sda 8:0 0 19.5G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 17.8G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 8G 0 lvm /
sdb 8:16 0 4G 0 disk
├─vg_var-var_mirror_rmeta_0 253:1 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_0 253:2 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
sdc 8:32 0 4G 0 disk
├─vg_var-var_mirror_rmeta_1 253:3 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_1 253:4 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
root@system:/home/vagrant# vgcreate vg_home /dev/sdd
Volume group "vg_home" successfully created
root@system:/home/vagrant# lvcreate -n lv_home -l 100%FREE vg_home
Logical volume "lv_home" created.
root@system:/home/vagrant# mkfs.ext4 /dev/vg_home/lv_home
mke2fs 1.45.5 (07-Jan-2020)
Creating filesystem with 1047552 4k blocks and 262144 inodes
Filesystem UUID: d84114a3-2356-405a-a148-a503eab99f01
Superblock backups stored on blocks:
32768, 98304, 163840, 229376, 294912, 819200, 884736
Allocating group tables: done
Writing inode tables: done
Creating journal (16384 blocks): done
Writing superblocks and filesystem accounting information: done
root@system:/home/vagrant# mount /dev/vg_home/lv_home /mnt
root@system:/home/vagrant# rsync /home/ /mnt
skipping directory .
root@system:/home/vagrant# umount /mnt
root@system:/home/vagrant# mount /dev/vg_home/lv_home /home
root@system:/home/vagrant# touch /home/file{1..20}
root@system:/home/vagrant# ls /home/
file1 file11 file13 file15 file17 file19 file20 file4 file6 file8 lost+found
file10 file12 file14 file16 file18 file2 file3 file5 file7 file9
root@system:/home/vagrant# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 91.9M 1 loop /snap/lxd/24061
loop1 7:1 0 63.3M 1 loop /snap/core20/1828
loop2 7:2 0 49.9M 1 loop /snap/snapd/18357
loop3 7:3 0 53.2M 1 loop /snap/snapd/19122
loop4 7:4 0 63.5M 1 loop /snap/core20/1891
sda 8:0 0 19.5G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 17.8G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 8G 0 lvm /
sdb 8:16 0 4G 0 disk
├─vg_var-var_mirror_rmeta_0 253:1 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_0 253:2 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
sdc 8:32 0 4G 0 disk
├─vg_var-var_mirror_rmeta_1 253:3 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_1 253:4 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
sdd 8:32 0 4G 0 disk
└─vg_home-lv_home 253:1 0 2G 0 lvm /home
root@system:/home/vagrant# lvcreate -L 100MB -s -n home_snap /dev/vg_home/lv_home
Logical volume "home_snap" created.
root@system:/home/vagrant# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
loop0 7:0 0 91.9M 1 loop /snap/lxd/24061
loop1 7:1 0 63.3M 1 loop /snap/core20/1828
loop2 7:2 0 49.9M 1 loop /snap/snapd/18357
loop3 7:3 0 53.2M 1 loop /snap/snapd/19122
loop4 7:4 0 63.5M 1 loop /snap/core20/1891
sda 8:0 0 19.5G 0 disk
├─sda1 8:1 0 1M 0 part
├─sda2 8:2 0 1.8G 0 part /boot
└─sda3 8:3 0 17.8G 0 part
└─ubuntu--vg-ubuntu--lv 253:0 0 8G 0 lvm /
sdb 8:16 0 4G 0 disk
├─vg_var-var_mirror_rmeta_0 253:1 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_0 253:2 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
sdc 8:32 0 4G 0 disk
├─vg_var-var_mirror_rmeta_1 253:3 0 4M 0 lvm
│ └─vg_var-var_mirror 253:5 0 2G 0 lvm /var
└─vg_var-var_mirror_rimage_1 253:4 0 2G 0 lvm
└─vg_var-var_mirror 253:5 0 2G 0 lvm /var
sdd 8:32 0 4G 0 disk
├─vg_home-lv_home-real 253:2 0 2G 0 lvm
│ ├─vg_home-lv_home 253:1 0 2G 0 lvm /home
│ └─vg_home-home_snap 253:4 0 2G 0 lvm
└─vg_home-home_snap-cow 253:3 0 100M 0 lvm
└─vg_home-home_snap 253:4 0 2G 0 lvm
root@system:/home/vagrant# rm -f /home/file{11..20}
root@system:/home/vagrant# ls /home/
file1 file10 file2 file3 file4 file5 file6 file7 file8 file9 lost+found
root@system:/home/vagrant# umount /home
root@system:/home/vagrant# lvconvert --merge /dev/vg_home/home_snap
Merging of volume vg_home/home_snap started.
vg_home/lv_home: Merged: 100.00%
root@system:/home/vagrant# mount /dev/vg_home/lv_home /home/
root@system:/home/vagrant# ls /home/
file1 file11 file13 file15 file17 file19 file20 file4 file6 file8 lost+found
file10 file12 file14 file16 file18 file2 file3 file5 file7 file9
root@system:/home/vagrant#