Solaris

Originally Posted by reborg

This is not true. Provided there is enough space on a disk and an unused partition /usr can be moved. A reboot is required, but that is as far as it goes in terms of downtime.

The procedure would be:

make a new filesystem

mount the new filesystem, for exmaple to /mnt

Code:

cd /usr
find . | cpio -pmdu /mnt
umount /mnt

edit vfstab as required

reboot to single user mode

Code:

mv /usr /usr.old
mkdir /usr

exit and allow the machine to continue the boot sequence.

Once you're happy that everything is ok you can remove /usr.old