1. For this example, your OS disk is totally corrupted and replaced with a new disk. Go to the ok prompt and boot in single-user mode from the Solaris CD.

ok> boot cdrom -s

2. Partition your new disk in the same way as your original disk.

3. Format all slices using the newfs command. For example:

# newfs /dev/rdsk/c0t0d0s0

4. Make a new directory in /tmp:

# mkdir /tmp/slice0

5. Mount c0t0d0s0 into /tmp/slice0:

# mount /dev/dsk/c0t0d0s0 /tmp/slice0

6. Verify the status of the tape drive:

# mt status

If the tape drive is not detected, issue the following command:

# devfsadm -c tape

or

# drvconfig

# tapes

# devlinks

Verify the status of tape drive again and make sure the backup tape is in the first block or file number is zero. Use the following command to rewind the backup tape:

# mt rewind

7. Go into the /tmp/slice0 directory and you can start restoring the OS.

# cd /tmp/slice0

# ufsrestore rvf /dev/rmt/0n

If you want to restore from another disk (such as c0t1d0s0), use the following command:

# mkdir /tmp/backup

# mount /dev/dsk/c0t1d0s0 /tmp/backup

# ufsdump 0f - /tmp/backup | (cd /tmp/slice0;ufsrestore xvf -)

8. After restoring all the partitions successfully, install bootblock to make the disk bootable. This example assumes your /usr is located inside the "/" partition:

# cd /tmp/slice0/usr/platform/'uname -m'/lib/fs/ufs

# installboot bootblk /dev/rdsk/c0t0d0s0

9. To finish restoring your OS, reboot the system.