Date: Sun, 7 Dec 2008 12:17:20 +0000 From: Pegasus Mc Cleaft <ken@mthelicon.com> To: Doug Rabson <dfr@rabson.org> Cc: hackers@freebsd.org, current@freebsd.org Subject: Re: Problems with zfsboot loader if raidz present on any drive Message-ID: <200812071217.20500.ken@mthelicon.com> In-Reply-To: <66BF33BA-EC11-446F-9DE7-15395F293FE2@rabson.org> References: <200812070319.18461.ken@mthelicon.com> <66BF33BA-EC11-446F-9DE7-15395F293FE2@rabson.org>
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On Sunday 07 December 2008 09:22:16 Doug Rabson wrote: > On 7 Dec 2008, at 03:19, Pegasus Mc Cleaft wrote: > > Hello Hackers, > > > > Recently and friend and I have been trying to get the new > > gptzfsboot working > > on our machines and ran into a interesting problem. > > > > Initially I was building the world without the environment variable > > LOADER_ZFS_SUPPORT=YES in the /etc/make.conf and this, of course, > > didnt work > > very well. Every time the machine booted, it would throw 2 lines > > after the > > pin-wheel and then reboot. I couldent read what the lines were it > > went so > > fast. > > > > My friend had a bit more luck and got his machine working OK with a > > single > > drive and later a mirror drive added. > > > > I added the environment variable and rebuilt everything and > > installed. This > > time, I could see the bios drives and a further 2 lines of ZFS > > something and a > > reboot... > > > > No matter what I tried, I couldent get the machine to boot up to a > > point > > where I could try and fix the problem, so I started pulling devices > > out and > > found the following: If there is a raidz pool on any drive (not > > necessarily > > the one that you are trying to boot from) the loader dies and > > reboots the > > machine. My friend, as an experiment created 3 gpt partitions (in > > addition to > > the single partition that he had been previously booted from) on his > > single > > drive and made a raidz pool for testing. His machine showed the same > > condition > > as mine, however he was able to capture the message before the machine > > rebooted: > > > > <message> > > ZFS: can only boot from disk or mirror vdevs > > > > ZFS: inconsistent nvlist contents > > The zfsboot code in current doesn't support raidz or raidz2. I have > been working on adding that support but its not ready yet. The code > works in my test harness but crashes instantly when I put it in the > boot code :(. I should have time to finish debugging it soon. Hi Doug, In my haste to put a message to the group, I didnt do a very good job of explaining or give what platform I was working with. I set up a single disk pool with the gptzfsboot code on it as a boot drive. My idea was to have a single disk boot (and after it boots and I can kill the UFS drive I am currently booting from) convert it to a mirror. But I have 6 other drives in the machine that I have as a raidz for my /usr/home, et al. If the 6 raidz drives are present at boot time, the machine starts to cyclic reboot just after the pin-wheel. The machine I am working on is running FBSD8.0-Current as of midnight 7/12/2008 and the platform is AMD64. If I can help test in any way I would be more than happy to try, or provide any information necessary.. ~Peg
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