On 03/02/2012 04:00 PM, Jonathan Vomacka wrote: > On 3/2/2012 2:46 PM, Bowie Bailey wrote: >> On 3/2/2012 1:01 PM, m.roth at 5-cent.us wrote: >>> Digimer wrote: >>> <snip> >>>> Boot from a live CD using the CentOS 6.2 install media. Once booted: >>>> >>>> <bash># grub >>>> <grub> root (hd0,0) >>>> <grub> setup (hd0) >>>> <grub> root (hd1,0) >>>> <grub> setup (hd1) >>>> <grub> root (hd2,0) >>>> <grub> setup (hd2) >>>> <grub> quit >>>> <bash># reboot >>>> >>>> This assumes that grub sees the drives at '0, 1 and 2' and the boot >>>> partition is the first on each drive. If it is, when you type 'root >>>> (hdX,0)' it should report that a file system was found. The 'setup >>>> (hdX)' will tell grub to write the MBR to the specified disk. >>> THANK YOU! I could have used that once or twice, and had no idea that grub >>> could create a std. MBR. >> >> When I set up a RAID 1, I do it like this: >> >> device (hd0) /dev/sda >> root (hd0,0) >> setup (hd0) >> device (hd0) /dev/sdb >> root (hd0,0) >> setup (hd0) >> device (hd0) /dev/sdc >> root (hd0,0) >> setup (hd0) >> >> This way, all the drives are set up as if they are hd0. This way, any >> of them will boot normally as a stand-alone drive. >> > > Bowie, in terms of RAID 10, each drive technically cant be standalone > right? The drives are striped and mirrored. 10 (one-zero) == a mirror of two stripped arrays. You can lose up to two drives, so long as they are both from the same strip set. As I understand it though, I thought that /boot could only exist on RAID 1 vanilla. -- Digimer E-Mail: digimer at alteeve.com Papers and Projects: https://alteeve.com