> On Sun, Dec 25, 2011 at 2:37 PM, Jeffrey Ross <jeff@xxxxxxxxxx> wrote: >> Is there a way to identify which disk the BIOS is using to boot from (eg >> disk 0 or 1) when I don't have physical access to the system to view the >> BIOS settings? >> >> The situation is this, I have a machine at a remote location where the >> system runs RAID-1 and both disks (0 and 1) can boot the system, I need >> to >> rewrite the boot sectors on the disks and I don't have easy access to >> the >> machine so I have to be careful as to which order I do them. > > If both disks have identical bootloaders, I'm not sure there's any way > from a running system to check which one you booted from. If you > don't mind rebooting it, you could add a different arbitrary kernel > argument to the GRUB configuration of each disk's bootloader, reboot > the machine, then check /proc/cmdline to see which one shows up. > > That being said, why does the order matter? So long as you do both > correctly before rebooting the machine all should be well. > In this case it turns out it was booting off of sda (which is what I suspected), I ended up taking a ride down to the datacenter and verifying the BIOS. The original question although no longer important remains, can you tell which disk the initial load occurred from? I did run dmidecode and found nothing of value. Thanks, Jeff -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
