[jggimi]

Step-by-step instructions for "resizing" /usr, using /home as a temporary storage facility. Warning: This is just typed up here for your convenience, just now. I have not -tested- this procedure as written, and may have made a mistake. Or two. Hint: If you blindly copy/paste these commands without understanding them, you are likely to get into trouble.

1. Boot in single user mode. At the boot> prompt, enter "-s".
2. Back up the existing /usr. It is assumed that /usr and /tmp and /home are defined in fstab(5):
   1. # mount /tmp
   2. # mount /home
   3. # dump -0af /home/usr.dump /usr
3. Delete and recreate your /usr partition using disklabel(8) and newfs(8). This assumes you have the desired free space, and that the existing partition is on wd1d:
   1. # disklabel -E wd1
   2. d d
   3. a d
   4. [select your starting LBA]
   5. [select your size]
   6. [press ENTER to take the default FFS partition type]
   7. q
   8. # newfs wd1d
4. Restore /usr from backup
   1. # mount -o async,noatime /dev/wd1d /usr
   2. # cd /usr
   3. # restore -rf /home/usr.dump
   4. # rm restoresymtable
5. Reboot
   1. # reboot