Hwo to rebuild a device tree

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How to rebuild a device tree booted from a Solaris[TM] 8, 9 or 10 Operating Environment cdrom
This article explains how to rebuild a device tree while booted from a Solaris[TM] 8, 9, or 10 Operating Environment cdrom. The following steps demonstrate how to rebuild the device tree if any of the device files have been deleted.
1. Insert a Solaris 8, 9 or 10 cd into the hosts cdrom
2. From the ok prompt, enter boot cdrom -s
  ex: ok> boot cdrom -s      
3. fsck the boot disk
  ex: # fsck -y /dev/rdsk/c0t0d0s0

Note that your boot disk may differ than the above example.
4. Mount the root slice on /a
  ex: # mount /dev/dsk/c0t0d0s0 /a
Note that your root slice may differ than the above example.
5. Move path_to_inst
  ex: # mv /a/etc/path_to_inst /a/etc/ORIGINAL_PATH_TO_INST      
6. Remove all old device links
  ex: # rm /a/dev/rdsk/c* ; rm /a/dev/dsk/c* ; rm /a/dev/rmt/* ; rm /a/dev/cfg/c*      
7. Rebuild path_to_inst and devices
  ex: # devfsadm -r /a -p /a/etc/path_to_inst      
8. Unmount the root slice and reboot
  ex: # umount /a ; init 6


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