On Fri, 22 Apr 2011 16:23:19 +0100 John Robinson <john.robinson@xxxxxxxxxxxxxxxx> wrote: > (Please always remember to cc the list when replying; cc readded) > > On 22/04/2011 16:09, Raphael Müller wrote: > > Ok i forgot to say, that the backup file is also gone... (my mistake) > > > > is this backup file the only option i got? > > Without the backup file you've almost certainly lost some data. I > suspect there is a way of restarting the array and reshape without the > backup file, but I don't know what it is - you'll have to wait for a > proper guru to get back to you with an answer. > With mdadm 3.2.1 there is a new flag "--invalid-backup". It tells mdadm that you know that the backup file is invalid, but you want it to continue anyway (and risk having some corrupted data). You still need to give a backup file, but it can be a newly created empty file. So: # install mdadm 3.2.1 > /root/my-backup mdadm -A /dev/mdthing --backup-file=/root/my-backup \ --invalid-backup /dev/device1 /dev/device2 .... should get you going again. NeilBrown -- 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
