On Mon, 08.03.2010 at 13:09:19 +0200, Eugene Dzhurinsky wrote: > On Mon, Mar 08, 2010 at 12:52:43PM +0200, Eugene Dzhurinsky wrote: > > dd if=/dev/ad4 of=/dev/null skip=222342559 bs=512 count=1 > > dd: /dev/ad4: Input/output error > > 0+0 records in > > 0+0 records out > > 0 bytes transferred in 2.351940 secs (0 bytes/sec) > > > > dd if=/dev/zero of=/dev/ad4 seek=222342559 bs=512 count=1 > > dd: /dev/ad4: Operation not permitted > > > > Should I do it in single mode? > > sysctl kern.geom.debugflags=0x10 > > Did the trick, I was able to write directly to the sector, and now it seems to > work well. No remaps recorded thus, but no errors so far.
It's too late now, but you really should have gone with something like # recoverdisk /dev/ad4 /dev/ad4 this will re-write all blocks on the disk, it may fail at reading block 222342559, but there's a chance that the disk error correction gets it right after a couple of times. Regards, Uli _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
