I have a TrueNas Scale Ubuntu Server 20.04 VM that needed more space. So I increase the zvol in TrueNas and then booted the VM into the GParted Live ISO and resized the partition to use all the free space. That partition is now 30G in size:
fdisk -l
Disk /dev/vda: 30 GiB, 32212254720 bytes, 62914560 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
Disklabel type: gpt
Disk identifier: F8A5FA44-9747-43DA-854E-64D52B0EC166
Device Start End Sectors Size Type
/dev/vda1 2048 1103871 1101824 538M EFI System
/dev/vda2 1103872 4773887 3670016 1.8G Linux filesystem
/dev/vda3 4773888 62912511 58138624 27.7G Linux filesystem
But the filesystem:
df -h
Filesystem Size Used Avail Use% Mounted on
udev 2.9G 0 2.9G 0% /dev
tmpfs 593M 1.2M 592M 1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv 7.6G 4.4G 2.8G 62% /
tmpfs 2.9G 4.0K 2.9G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 2.9G 0 2.9G 0% /sys/fs/cgroup
/dev/vda2 1.7G 107M 1.5G 7% /boot
/dev/vda1 537M 6.1M 531M 2% /boot/efi
/dev/loop0 56M 56M 0 100% /snap/core18/2128
/dev/loop3 71M 71M 0 100% /snap/lxd/21029
/dev/loop1 56M 56M 0 100% /snap/core18/2667
/dev/loop4 50M 50M 0 100% /snap/snapd/17950
/dev/loop2 64M 64M 0 100% /snap/core20/1778
/dev/loop5 92M 92M 0 100% /snap/lxd/24061
tmpfs 593M 0 593M 0% /run/user/1000
So how do I make this /dev/mapper volume use the 30G ?
I see this in /etc/fstab but am lost on what to do next:
/dev/disk/by-id/dm-uuid-LVM-Z0YxbpdOkZl1MWTg7s615CRW5Ql0nCU6tiMjpzERyP6t32rBXBX2C4ohLLB3p2Qg / ext4 defaults 0 1
