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- Newsgroups: comp.unix.ultrix
- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!zazen!decwrl!deccrl!news.crl.dec.com!pa.dec.com!decuac!hussar.dco.dec.com!mjr
- From: mjr@hussar.dco.dec.com (Marcus J. Ranum AXP)
- Subject: Re: Ultrix 4.2: Bad block fixing?
- Message-ID: <1992Nov22.202756.28444@decuac.dec.com>
- Sender: news@decuac.dec.com (USENET News System)
- Nntp-Posting-Host: hussar.dco.dec.com
- Organization: Digital Equipment Corporation, Washington ULTRIX Resource Center
- References: <bosullvn.722462052@unix1.tcd.ie>
- Date: Sun, 22 Nov 1992 20:27:56 GMT
- Lines: 15
-
- >Lately,
- >the machine has refused to boot due to the hard errors on the root
- >file system. Running fsck on the disks does not repair the hard
- >errors, and DEC's radisk utility doesn't seem to help either.
-
- You getting the forced error or whatever it is message?
- The bad blocks *should* have gotten remapped already. What then
- happens is that the block is marked as unusable (since there's no
- useful data in it) and you need to clear the re-mapped block
- before the system will permit it to be written. It's a perfectly
- good block, though. Use "radisk -c LBN 1 /dev/device" to mark the
- remapped block as usable, then fsck should be able to fix the
- filesystem up.
-
- mjr.
-