Thanks, but... I had another problem recently and it the system DID boot with the RAID degraded. (In fact, I posted a Q here 12 days ago about putting my degraded raid back together.) Also, the documentation I can find on md-mod.start_dirty_degraded=1 says it's for RAID 5 or 6 and root filesystems. Mine is RAID-1 and /home. Any other ideas? -troy On Sun, Feb 1, 2009 at 1:58 AM, Guy Watkins <linux-raid@xxxxxxxxxxxxxxxx> wrote: > Years ago I had a problem booting with a failed disk. I was told to add > this to the kernel command line. > > md-mod.start_dirty_degraded=1 > > For me the file to edit is this: /boot/grub/grub.conf > > I think the above should be the default. During a failure is not the time > to learn this! Or it should be an attribute of the array, so you can have > some arrays that can start degraded and some that can't. > > Guy > > } -----Original Message----- > } From: linux-raid-owner@xxxxxxxxxxxxxxx [mailto:linux-raid- > } owner@xxxxxxxxxxxxxxx] On Behalf Of Troy Cauble > } Sent: Sunday, February 01, 2009 12:35 AM > } To: linux-raid@xxxxxxxxxxxxxxx > } Subject: problem growing raid-1 > } > } I want to replace both disks in a RAID-1 with larger ones using the > } instructions here: > } http://linux- > } raid.osdl.org/index.php/Growing#Extending_an_existing_RAID_array > } > } It looks straightforward: mdadm -f, mdmadm -r, swap a drive, etc., etc. > } > } Except if I -f & -r a drive, I won't know which physical drive to pull. > } (And I have no spare SATA ports.) > } > } So I figure I'll pull a drive first, then -f & -r whatever mdadm tells > } me is missing. > } But when I pull the drive, connect a new one and boot, I get dropped > } into a repair > } shell with: > } > } fsck.ext3: Unable to resolve 'UUID=806153bf-6917-440d-ae48-553418cfbbeb' > } > } which is the UUID of the raid filesystem. > } > } I put the drive back in and reboot, and everything is fine. > } > } 1) So why doesn't my RAID-1 survive pulling a drive? > } Seems like a standard failure mode. > } > } 2) How do I proceed with the upgrade? > } > } Thanks, > } -troy > } -- > } To unsubscribe from this list: send the line "unsubscribe linux-raid" in > } the body of a message to majordomo@xxxxxxxxxxxxxxx > } More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
