[SunRescue] HELP!!! My /opt slice just died!

[Mike Hebel]

Thanks!

I do have a question though - you said a random base-2 number (64, 128,
etc.) but the newfs -Nv came up with numbers listed as super-block backups
at 32, 97376, 194720, etc. in that exact order. Does this mean that my slice
is slightly different and I should use those numbers?  (32 does not work
BTW.)

(A slightly calmer)
Mike Hebel

-----Original Message-----
From: rescue-admin at sunhelp.org [mailto:rescue-admin at sunhelp.org]On
Behalf Of Jonathan Katz
Sent: Friday, October 20, 2000 10:50 AM
To: Rescue at Sunhelp. Org
Subject: Re: [SunRescue] HELP!!! My /opt slice just died!


Hey dude, it isn't the end of the world:

# fsck -F ufs -o b=(random base-2 number) -y /dev/rdsk/c0t1d0s3

Simply put, the base superblock died. Good thing UFS provides for
backups.

Try these numbers:

32, 64, 128, 32768, 65536, etc....

On Fri, 20 Oct 2000, Mike Hebel wrote:

:Just a few minutes ago I rebooted my SS5 and the /opt slice didn't come up.
:(Solaris 2.6)
:fsck gives me:
:** /dev/rdsk/c0t1d0s3
:BAD SUPER BLOCK: MAGIC NUMBER WRONG
:USE AN ALTERNATE SUPER-BLOCK TO SUPPLY NEEDED INFORMATION;
:eg. fsck [-F ufs] -o b=# [special ...]
:where # is the alternate super block. SEE fsck_ufs(1M)
:
:I looked at the man(1) page for fsck_ufs and followed the newfs -Nv
:instructions and now have a whole buttload (still no definition yet) of
:super-block numbers on the screen.
:
:Where the heck do I go from here?
:
:Needless to say I'm panicing just a little.  It's not that I would have to
:re-load the machine it's just that I would like to not have to go through
:the CAD software validation crap again.
:
:Any help would be appreciated.
:
:Signed,
:
:Chicken with it's head cut off.  (Mike Hebel)
:
:_______________________________________________
:Rescue maillist  -  Rescue at sunhelp.org
:http://www.sunhelp.org/mailman/listinfo/rescue
:

--
Jonathan Katz
e-mail: jon at jonworld.com
website: http://jonworld.com
proprietor: http://bachelor-cooking.com
Cell: 317-698-4023 * Pager: 800-759-8888 1770869 * FAX: 530-688-5347

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