SUMMARY...recover root & /usr with LSM

From: PHETPHONE D CHANTHAVONG <CHANTHP_at_POLAROID.COM>
Date: Thu, 16 Jul 1998 09:46:31 -0400

     Hi all,
     
     Thanks to all, who replied to my question, most of them
     just talking in general...
      
     These are the answer to my question below. The answer are
     base on the experiement on my testing system with help
     from Compaq/Digital:
     
     1. Boot installation CD and select option UNIX Shell.
     2. Create special device filesystem and edit the disk label
        # cd /dev
        # ./MAKEDEV re0 tz5
        # disklabel -z re0
        # disklabel -rw -t advfs re0 SWXCR
         
     3. Recreate root filesystem using mkfdmn & mkfset
     4. Restore root from the backup.
     5. edit fstab, change LSM references to disk references everything
        on the system disk.
     6. Change link to references all domains.
     7. edit sysconfigtab and change the following lines from 1 to 0.
         lsm_rootdev_is_volume
         lsm_swapdev_is_volume
     
     8. remove link od /sbin/swapdefault and recreate it.
        # rm -e /sbin/swapdefault
        # ln -sf ../dev/re0b swapdefault
        # sync
        # sync
        # sync
      
     9. Halt and reboot the system to singleuser mode.
      
     10. Remove and recreate usr_domain and restore /usr from tape,
          assumed /var is in /usr.
     11. start & remove all LSM system disk volumes using voldg command.
         # /sbin/lsmbstartup -n
         # voldg -rf rm rootvol
         # voldg -rf rm swapvol
         # voldg -rf rm vol-re0g
     
     12. reboot the system to multiuser mode.
      
     13. you now can reencapsulating and remirror
         the system disk. Your system will then be configured
         as it was.
     
     Thanks,
     -Pat
     
     
         
     
     
     
     
     
     




______________________________ Forward Header __________________________________
Subject: recover root & /usr with LSM
Author: PHETPHONE D CHANTHAVONG at ~W300F2
Date: 7/13/98 11:39 AM


     hello all,
     
     I have another problem when trying to recover the root & /usr
     with Encapsalting LSM on it under Digital UNIX V4.0 and higher.
     After I restored "vrestore" files system of root & /usr from the
     backup "vdump" tape and I then halt and reboot the
     system, but the system won't boot. The error: lsm:vold: Error:
     system startup failed.
     
     I have tried it with the system fully reinstall and with loading
     from the installation software CD and select option #3 (UNIX Shell
     prompt) as what it said on the manual and I have no luck with it.
     
     Is anyone having this kind of problem and know the answer?
     
     Thanks,
     -pat
     
     
     
     
     
     
     
     
     
     
     
     
Received on Thu Jul 16 1998 - 15:51:15 NZST