How to extend Reiserfs filesystem online and offline Easily

Are you looking for the command to extend the reiserfs filesystem online and offline.  “resize_reiserfs” is the command to increase / extend the filesystem.

How to extend Reiserfs filesystem online and offline

But ensure that you have increased the size from partition level. So Reiserfs file systems can be resized when it is mounted or unmounted. Assume that we have LVM volume /dev/vg01/lvol1.

Extend reiserfs filesystem Online

# resize_reiserfs -f /dev/vg01/lvol1

Extend reiserfs filesystem Offline

# umount /dev/vg01/lvol1
# resize_reiserfs /dev/vg01/lvol1
# mount -treiserfs /dev/vg01/lvol1

Finally check the disk usage output using the command “df -h” to confirm whether the filesystem got changed or not. That’s it.

Hope this post helped you to extend Reiserfs filesystem online and offline.

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