Date: Thu, 5 Apr 2007 19:48:13 -0400 From: Mike Meyer <mwm@mired.org> To: Xi Liu <xliu99@yahoo.com> Cc: freebsd-amd64@freebsd.org Subject: Re: Is there a way to make the computer boot again with a possible corrupted gm drive Message-ID: <17941.35517.518959.875881@bhuda.mired.org> In-Reply-To: <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com> References: <17941.22785.930117.211326@bhuda.mired.org> <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com>
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In <20070405222630.83665.qmail@web54102.mail.re2.yahoo.com>, Xi Liu <xliu99@yahoo.com> typed: > I was able to mount one of the SATA drive (which is > part of the gmirror drive), and copy some data files > to another IDE drive (bootable). But I can not copy > some data files, there was error being printed out > that says sth. like "...UNRECOVERABLE....", > Hopefully, the data files I was able to copy is > complete. > > The gmirror drive consists of two SATA drives. That I > usally boot from this gmirror drive. Do you know if I > can restore/rebuild the complete gmirror drive? If > Yes, can you please point to me some instructions? > That can save me lots of time/trouble to > reinstall/reconfigure the whole system No, I don't know if you can restore/rebuild it, because I don't know how badly it's broken. If all the drives are dead, you're out of luck. Normally, only one of the drives in a mirror has problems. So try mounting the other drives and see if how they work. If one of them is fine, then you can just mount it and and a replacement for the dead drives, and the system will automatically rebuild the mirror on the new drives. If all of the drives have problems (I've never had that happen), then you have multiple broken drives to try and recover the data from, meaning you're more likely to be able to get everything back. Whatever you do, *do not* write on the drives! If the data is truly valuable, there are services that specialize in extracting data from dead drives. Writing anything at all to the drive makes their work harder. However, they are expensive. <mike -- Mike Meyer <mwm@mired.org> http://www.mired.org/consulting.html Independent Network/Unix/Perforce consultant, email for more information.
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