From mboxrd@z Thu Jan 1 00:00:00 1970 From: "lrhorer@satx.rr.com" Subject: Help - Urgent!!! Date: Thu, 12 Nov 2009 22:53:01 -0600 Message-ID: <200911122253.01626.lrhorer@satx.rr.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Damn!!! I was doing some testing at the behest of Doug, when I made a critical error which locked up the system and now the main array won't assemble, at all. I issued the command `mdadm -G /dev/md0 -b internal --bitmap-chunk=65535` And the system complained it was an invalid chunk-size, so I tried: `mdadm -G /dev/md0 -b internal --bitmap-chunk=65536` This time there was no error, but the command line just hung solid. I tired everything I could to recover, but the system just went downhill more and more. Finally I tried a shutdown, but even that would not work. I had to hit the big red switch, and now when I rebooted the system, mdadm will not assemble the array no matter what I try. I tried `mdadm --assemble /dev/md0 -f` `mdadm --assemble /dev/md0 -u xxxxxxxx:xxxxxxxxx:xxxxxx:xxxxxx` etc. It just keeps saying, "No devices found for md0". When I issue the --examine switch, the information all looks good for all the drives, just no RAID. What do I do, now?