Date: Sat, 3 Dec 2005 03:02:47 +1300 From: Doug H <illusion65@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Help deriving a corrupted disklabel Message-ID: <57750f110512020602v7ea73a24mec5abed1c9bd265@mail.gmail.com> In-Reply-To: <200512011223.34129.mistry.7@osu.edu> References: <57750f110511301815m255cfc23g4688eea38f601e37@mail.gmail.com> <200512011223.34129.mistry.7@osu.edu>
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Hi Anish,
Thanks for the reply -- scan_ffs did exactly what I needed it to do!
For those who encounter a similar problem (damaged disklabel on a FreeBSD
slice), it's not as simple as one might hope, since I was limited to the
"Fixit" shell on the FreeBSD 6.0-RELEASE CD.
scan_ffs is not on the CD, which makes it much more difficult (configuring
networking, obtaining it via ftp, unpacking the package, etc., since
'pkg_add -r' doesn't work in a Fixit shell). Setup was most of the work!
Once I had a usable copy of scan_ffs, the rest was simple.
Thanks again for the help. Without it, I'm sure I'd still be struggling to
use dd and grep to locate magic numbers using a shell script.
Doug
On 12/2/05, Anish Mistry <mistry.7@osu.edu> wrote:
>
> On Wednesday 30 November 2005 09:15 pm, Doug H wrote:
> > <snip>
> > PROBLEM: bsdlabel showed me that slice 1 (FreeBSD 5.4) is damaged
> > and only partition c existed and was incorrect. I do not have /
> > cannot find a written copy of my disklabel for that disk (a good
> > suggestion to *strongly emphasize* in the installation manual for
> > newbies!). I did recall that ad1s1a ('/') was 512M, so I was able
> > to write a label and mount that partition from a "Fixit" shell.
> >
> > QUESTIONS: How can I rederive the remaining disklabel for that
> > disk? Could a copy possibly be stored somewhere on root if I
> > didn't do it myself when building the system?
> > <snip>
>
>
> sysutils/scan_ffs
> I've always used it from a emergency FreeBSD diagnostic CD (custom
> Freesbie) and it works great. I've never been stuck with only a
> fixit shell though.
>
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