On 12/08/16 01:20, William A. Mahaffey III wrote: > On 08/11/16 02:33, Nicolas Kovacs wrote: >> Hi, >> >> When I perform a software RAID 1 or RAID 5 installation on a LAN server >> with several hard disks, I wonder if GRUB already gets installed on each >> individual MBR, or if I have to do that manually. On CentOS 5.x and 6.x, >> this had to be done like this: >> >> # grub >> grub> device (hd0) /dev/sda >> grub> device (hd1) /dev/sdb >> grub> root (hd0,0) >> grub> setup (hd0) >> grub> root (hd1,0) >> grub> setup (hd1) >> grub> quit >> >> I'd like my server to be able to boot a degraded software RAID after an >> eventual hard disk failure. >> >> Any suggestions? >> >> Niki Kovacs > > I have an aging FC14 (!!!!) system, w/ mdadm RAID partitions. I have > /boot setup as mdadm RAID1's, 2 drives (actually partitions). Machine > boots AOK, & I believe it does (& maintains) that setup automatically. > I got that recommendation from a mailing list ages ago, can't remember > where, sorry. $0.02, no more, no less .... > > > [root at Q6600:/etc, Thu Aug 11, 08:25 AM] 1018 # df -h > Filesystem Type Size Used Avail Use% Mounted on > /dev/md1 ext4 917G 8.0G 863G 1% / > tmpfs tmpfs 4.0G 0 4.0G 0% /dev/shm > /dev/md0 ext4 186M 60M 117M 34% /boot > /dev/md3 ext4 1.8T 1.4T 333G 81% /home > [root at Q6600:/etc, Thu Aug 11, 08:26 AM] 1019 # uname -a > Linux Q6600 2.6.35.14-106.fc14.x86_64 #1 SMP Wed Nov 23 13:07:52 UTC > 2011 x86_64 x86_64 x86_64 GNU/Linux > [root at Q6600:/etc, Thu Aug 11, 08:26 AM] 1020 # > > I too use this kind of set up. however I do not believe that anything on the MBR is updated automatically by any yum/rpm updates. Thus in this kind of a setup, one needs to take manual steps. HTH Rob