thanks for the reply - 1. my issue is that i am not getting to the grub menu on the good disk, it always goes to the bad one. I think it puts me in a intrdfsram prompt or something similar - even if i change the bios settings. - so editing the grub menu option - is unavailable for me.
2. regarding the procedure after grub - you wrote: grub-install --recheck --no-floppy /dev/sda repeat for "/dev/sdb", or use "hd0" and "hd1" which is grub traditional notation for first and second drives. my drives are /dev/sda and my boot partition is /dev/sda1 what do i type in that scenerio after i am able to create the mirror back to the way it was. thanks mjh On Wed, Jan 18, 2012 at 12:49 PM, tv.deb...@googlemail.com <tv.deb...@googlemail.com> wrote: > 18/01/2012 18:03, Joey L wrote: >> The issue I am having is that if I put into the system both drives, >> the system always chooses the faulty drive. >> I do not even get linux system - i get a weird text prompt - i think >> it is initrdfs - even if i change it in the bios. >> >> On installing grub - can you tell me what is the procedure for that >> after i get my drives to an okay state ? >> >> thanks >> mjh > > To get the system to start on a degraded raid array you can try passing > the following option on the "linux" line of the grub menu: > > md-mod.start_dirty_degraded=1 > > To edit the grub menu entry type the letter "e", then make the changes > by adding the option at the end of the line that starts with "linux". > To boot use "ctrl" + "x" (keys "control" and "x" et the same time). > > Once you are in the system, issue (as root) the following commands > assuming that "md0" is the array, and "sdb1" the faulty drive partition: > > mdadm /dev/md0 --fail /dev/sdb1 > > mdadm /dev/md0 --remove /dev/sdb1 > > mdadm /dev/md0 --zero-superblock /dev/sdb1 > > mdadm /dev/md0 --add /dev/sdb1 > > "fail" and "remove" can be issued in the same command, but you can also > use them as shown above for clarity's sake. > > > Regarding grub, just use the usual magic formula (as root): > > grub-install --recheck --no-floppy /dev/sda > > repeat for "/dev/sdb", or use "hd0" and "hd1" which is grub traditional > notation for first and second drives. > > > -- > To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org > with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org > Archive: http://lists.debian.org/4f170619.5070...@googlemail.com > -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/cak3er7t40um+w448xogt8brp4o41crf6saihb67frdd6igq...@mail.gmail.com