I have a /tmp volume that I'd like to increase. I've been having a look
at the LVM HOWTO [1] and various other pages online and think I've got
it figured out. Those being famous last words, I thought I'd check here
first.
# parted /dev/sda print
Model: ATA Maxtor 6Y080L0 (scsi)
Disk /dev/sda: 82.0GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
Number Start End Size Type File system Flags
1 32.3kB 107MB 107MB primary ext3 boot
2 107MB 82.0GB 81.8GB primary lvm
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
19G 4.5G 14G 26% /
/dev/mapper/VolGroup00-LogVol02
24G 8.5G 14G 38% /home
/dev/sda1 99M 19M 76M 20% /boot
tmpfs 744M 0 744M 0% /dev/shm
/dev/mapper/VolGroup00-LogVol05
4.8G 540M 4.0G 12% /usr/local
/dev/mapper/VolGroup00-LogVol04
19G 6.3G 12G 35% /var
/dev/mapper/VolGroup00-LogVol03
961M 18M 894M 2% /tmp
/dev/mapper/VolGroup00-LogVol06
3.8G 194M 3.4G 6% /opt
I'd like to reduce /var first to free up some space, then give that to
/tmp using:
# umount /var
# e2fsck -f /dev/VolGroup00/LogVol04
# resize2fs /dev/VolGroup00/LogVol04 13G
# lvreduce -L-6G /dev/VolGroup00/LogVol04
# mount /var
# umount /tmp
# e2fsck -f /dev/VolGroup00/LogVol03
# lvextend -L+6G /dev/VolGroup00/LogVol03
# resize2fs /dev/VolGroup00/LogVol03
# mount /tmp
Does that ring any alarm bells?
[1] http://www.tldp.org/HOWTO/LVM-HOWTO/
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