On Sun, 23 Oct 2016 15:53:59 +0200, Patrick M. Hausen wrote: > > Am 22.10.2016 um 05:36 schrieb Ian Smith <smi...@nimnet.asn.au>: > > [...] > > I wonder two things: > > > > Do 'boot0cfg -v ada0' and 'boot0cfg -v ada1' both report the same?
Summary: yes, both equally wrong! > > Might it work properly if you upgraded the boot sectors to version 2, > > which is what you should get if you reinstall from current boot0cfg, > > presumably without touching the MBR data, but you'll have backups .. > > Well ... > > root@hd45:~ # boot0cfg -B mirror/m0 > root@hd45:~ # boot0cfg -s 2 mirror/m0 > root@hd45:~ # boot0cfg -v mirror/m0 > # flag start chs type end chs offset size > 1 0x80 1: 0: 1 0xa5 1022:254:63 16065 16418430 > 2 0x00 1023: 0: 1 0xa5 1020:254:63 16434495 16418430 > 3 0x00 1021: 0: 1 0xa5 768:254:63 32852925 1920667140 > > version=2.0 drive=0x80 mask=0xf ticks=182 bell=# (0x23) > options=packet,update,nosetdrv > volume serial ID b100-808f > default_selection=F2 (Slice 2) > > root@hd45:~ # boot0cfg -v ada0 > [...] > default_selection=F2 (Slice 2) > > root@hd45:~ # boot0cfg -v ada1 > [...] > default_selection=F2 (Slice 2) > > Revert the change: > > root@hd45:~ # boot0cfg -s 1 mirror/m0 > root@hd45:~ # boot0cfg -v mirror/m0 > [...] > default_selection=F1 (Slice 1) > > > That did it! These machines have been in production for some time > starting with FreeBSD 8.x and have been upgraded via NanoBSD style > dd followed by reboot all the time up to 10.3, now. Hence I never touched > the bootcode. Glad that one of my wild ill-informed wonderings was on target, and that gmirror is off the hook. > Actual reboot of this production machine in two weeks when we run our > regular updates. But I expect that to "just work". Warner expected the existing boot0cfg code to "just work" too. And it does, except that the upgrades to it failed to include a method to fix existing installations retrospectively! cheers, Ian _______________________________________________ freebsd-stable@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
