Francesco, If your RAID is mdadm based, I would use a live CD and then chroot into your installed OS. Once in, I would use grub-install /dev/sd? to add the MBR info to the mirror. Once you are back up and running you can use mdadm to remove the defective disk and if desired add a new one to the array.
Shane On Fri, Mar 1, 2013 at 12:20 PM, Francesco Pietra <chiendar...@gmail.com>wrote: > Hi: > With a raid1 amd64 wheezy, one of the two HDs got broken. > Unfortunately, I had added grub to sda only, which is just the one > broken. So that, when it is replaced with a fresh HD, the OS is not > found. Inverting the SATA cables of course does not help (Operative > System Not Found). In a previous similar circumstance, I was lucky > that the broken HD was the one without gru. > > Is any way to recover? perhaps through Knoppix? I know how to look > into undamaged RAID1 with Knoppix. > > Also, when making a fresh RAID1 from scratch, where to find a Debian > description of how to make both sda and sdb bootable? (which should > be included by default, in my opinion) > > Thanks > francesco pietra > > > -- > 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/caev0nmu_dekcz7fx9fydnpuoaa9j3kkc+7zfkvf-ss7b7p6...@mail.gmail.com > > -- Shane D. Johnson IT Administrator Rasmussen Equipment
