David C. Rankin composed on 2017-04-24 03:23 (UTC-0500):
If the only existing bootloader and linux install is on /dev/sdb, then why is grub update overwriting the MBR of /dev/sda -- that it shouldn't touch?
Is there such a BIOS as can or will look to device HD1 aka sdb instead of HD0 aka sda when exists bootable (generic/legacy/Windows) code on HD0? If not, then the BIOS will never use it. Grub on sdb will only be used in such a case by chainloading from from elsewhere. Most modern BIOS can swap physical devices HD0 and HD1 via function key at POST or via setup menu, but that's not the same thing, as the second physical device in such case is presented as if the first. The installer or updater won't know the BIOS has done any such thing. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org