You need to extend a filesystem on a RedHat box? Check the filesystems with df -H. You might get something like
Filesystem Size Used Avail Use% Mounted on /dev/mapper/system-root 11G 8.0G 2.0G 81% / /dev/cciss/c0d0p1 104M 18M 81M 19% /boot tmpfs 2.1G 0 2.1G 0% /dev/shm /dev/mapper/system-tmp 4.2G 146M 3.9G 4% /tmp /dev/mapper/system-var 4.2G 873M 3.1G 23% /var /dev/mapper/system-mysqllv 11G 8.1G 1.8G 83% /var/lib/mysql /dev/mapper/system-srvlv 47G 16G 29G 35% /srv |
You need to increase the volume capacity first, e.g. for /srv mount:
lvextend -L +15G /dev/system/srvlv |
where +15G tells the command to extend the volume by another 15GB.
Last step is to adjust the filesystem to that volume’s new size:
resize2fs /dev/mapper/system-srvlv |
That’s it 🙂