On Aug 12, 2014, at 12:09 PM, Barney Cordoba <barney_cord...@yahoo.com> wrote:
> On Tuesday, August 12, 2014 1:16 PM, John Nielsen <li...@jnielsen.net> wrote: > >> On Aug 12, 2014, at 10:32 AM, Barney Cordoba <barney_cord...@yahoo.com> >> wrote: >> >>> A continuing issue (with 9.1 previously and now 10) is that FreeBSD >>> occasionally (or always) seems to boot from the 2nd installed drive rather >>> than the first. I'd be happy to debug this, but I have no idea if it's >>> bootcode or a BIOS issue. Supermicro pleads innocent, but their bios guys >>> are hard to work with and fairly arrogant if you don't specifically isolate >>> something. >>> >>> The scenario occurs when ada0 is upgraded and has an incompatible kernel >>> with other code on drive ada1. (note that ada1 is a backup of the >>> pre-upgrade ada0, so it's fstab points to ada0 for mount points). The >>> system will boot and then modules will fail to load. It loads the kernel >>> from ada1 and then mounts partitions from ada0; old kernel and newer >>> modules. >>> >>> The problem is resolved by popping the 2nd drive. So there is nothing wrong >>> with ada0 to cause it to bounce to ada1. >>> >>> My question: What would cause the system to boot from ada1 instead of ada0? >>> Bios or Bootcode? >> >> BIOS, most likely. If the disk controller in question is onboard you should >> be able to specify which disk(s) and what order they will be booted from. If >> not, you'll need to just say <disk controller> in the BIOS boot order then >> go to the controllers BIOS to say which disk(s) to boot from and in what >> order. I have recent experience with a SuperMicro box and an LSI controller; >> the latter allows you to specify a (b)oot drive and an (a)lternate. Yes, b >> comes before a. :) > > The bios only gives you one choice for "HDD". You can't select one of the 4 > drives to boot from. You can specify USB or CD or HDD, but Not HDD2 or HDD3. There may be a separate option controlling "hard drive boot order", and/or there may be a completely separate BIOS program for your drive controller with its own hotkey. JN _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
