What i did to get more space on /tmp on linux.

Yesterday i was installing a TSM Server for our company. The db2 installer complain about the /tmp size.

The installer need 2,5GB and my /tmp has only 2 GB.

I create a “disk” using dd command with 4GB on a partition with lots of space.

dd if=/dev/zero of=/usr/tmpDSK bs=1024k count=4096
mkfs -t ext3 /usr/tmpDSK
file /usr/tmpDSK
umount /tmp

mount -o loop,exec,nosuid,rw /usr/tmpDSK /tmp

After the db2 installation i umount the /tmp and mount it back using fstab -a