Ext4
Utilities
e2fsck – check a Linux ext2/ext3/ext4 file system
e2fsck [ -pacnyrdfkvtDFV ] [ -b superblock ] [ -B blocksize ] [ -l|-L bad_blocks_file ] [ -C fd ] [ -j external-journal ] [ -E extended_options ] [ -z undo_file ] device
$ sudo e2fsck /dev/mapper/ubuntu--vg-ubuntu--lv
e2fsck 1.45.5 (07-Jan-2020)
/dev/mapper/ubuntu--vg-ubuntu--lv is mounted.
e2fsck: Cannot continue, aborting.resize2fs – ext2/ext3/ext4 file system resizer
resize2fs [ -fFpPMbs ] [ -d debug-flags ] [ -S RAID-stride ] [ -z undo_file ] device [ size ]
If size parameter is not specified, it will default to the size of the partition.
$ sudo resize2fs /dev/mapper/ubuntu--vg-ubuntu--lv
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/mapper/ubuntu--vg-ubuntu--lv is mounted on /; on-line resizing required
old_desc_blocks = 2, new_desc_blocks = 4
The filesystem on /dev/mapper/ubuntu--vg-ubuntu--lv is now 7994368 (4k) blocks long.