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From: rick@crash.cts.com (Rick Stout)
Newsgroups: comp.unix.xenix
Subject: Re: Corrupted Filesystem * IDEAS *
Message-ID: <2540@crash.cts.com>
Date: 6 May 90 16:27:15 GMT
References: <2527@crash.cts.com>
Organization: Crash TimeSharing, El Cajon, CA
Lines: 24
X-Local-Date: 6 May 90 09:27:15 PDT

In article <2527@crash.cts.com> jca@pnet01.cts.com (John C. Archambeau) writes:
>rick@crash.cts.com (Rick Stout) writes:
>>In article <3295@auspex.auspex.com> guy@auspex.auspex.com (Guy Harris) writes:
>>>>I've yet to see a disk drive without a second superblock at 16 (/etc/fsck -b16)
>>>
>>>I've seen plenty of them.
>>>
>>>Some of them were running the BSD file system; they had it at 32, not 16.
>>
>>Whats the purpose of a second superblock?
>>If the first one is corrupted can you boot off the second?
>>
>>-Rick
>
>
>Or if a bad spot manifests itself at the first superblock.
> 
>     // JCA
So how do you boot off the second superblock?

Do you have to boot off a boot and root floppy, mount the
hard disk and recover the superblock somehow?

-Rick