LVM

Online resize

warning

To use this method the VG has to have free space.

Resize the lv.

lvextend -L +size /dev/vg-xfs/lv_name

Resize the filesystem.

xfs_growfs /dev/vg-xfs/lv-xfs

btrfs filesystem resize max /testBTRFS # Mount to this mountpoint first

resize2fs /dev/vg-ext4/lv-ext4

resize_reiserfs /dev/system/lv-reiserfs