We are running redhat 7.2 with 2.4 kernel. There is a 2 disk RAID 1 array which had a disk fail. The disk that failed had GRUB on it which in turn made the system unbootable. Our recovery method in a time of panic was to reinstall on a new disk saving certain partitions and reconstructing the array afterwards. During the reinstall we made a boot disk. Now we have 2 problems. 1.) The system will not shutdown cleanly. It gets to the point of saying no more service left in this run level and hangs. proc/mdstat show the disks as synced but ps aux shows raid1syncd running for each raid1d process 2.) We are having some trouble getting the system to boot from the hard disk/RAID How can I install the GRUB boot information to both disks so the system will boot even if one disk fails? So far we have done, from a grub prompt, root (hda0,1) and setup (hda0,1) when the system tries to boot it says error loading operating system. The first partition is swap that's why we used 0,1 Thanks Aaron Lewis JSW4.NET aaron@jsw4.net
Aaron D. Lewis wrote:> How can I install the GRUB boot information to both disks so the system will boot even if one disk fails? So far we have done, from a grub prompt, root (hda0,1) and setup (hda0,1) when the system tries to boot it says error loading operating system. The first partition is swap that's why we used 0,1An alternative might be to network boot pxegrub, the grub menu list and a kernel image from a tftp server. It would solve all your problems for now and in the future. We converted all our systems to do this and you wouldn't believe the amount of hassle it saved. Regrads, Nick. -- Nick Burrett Development Manager, Designer Servers Ltd. http://www.dsvr.co.uk
Unfortunately this is not an option right now. I'm more on the track of, I need to understand what went wrong and how I can resolve the issue. Especially with the shutdown problem. -----Original Message----- From: Nick Burrett [mailto:nick@dsvr.net] Sent: Wednesday, August 07, 2002 12:57 PM To: Aaron D. Lewis Cc: ext3-users@redhat.com Subject: Re: Please Help -- Raid shutdown problem Aaron D. Lewis wrote:> How can I install the GRUB boot information to both disks so thesystem will boot even if one disk fails? So far we have done, from a grub prompt, root (hda0,1) and setup (hda0,1) when the system tries to boot it says error loading operating system. The first partition is swap that's why we used 0,1 An alternative might be to network boot pxegrub, the grub menu list and a kernel image from a tftp server. It would solve all your problems for now and in the future. We converted all our systems to do this and you wouldn't believe the amount of hassle it saved. Regrads, Nick. -- Nick Burrett Development Manager, Designer Servers Ltd. http://www.dsvr.co.uk