Date: Tue, 23 Feb 2010 11:20:54 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-current@freebsd.org Cc: Chris <behrnetworks@gmail.com>, Scot Hetzel <swhetzel@gmail.com>, Pegasus Mc Cleaft <ken@mthelicon.com>, Matt Reimer <mattjreimer@gmail.com> Subject: Re: Seeing the dreaded "ZFS: i/o error - all block copies unavailable" on 9.0-CURRENT Message-ID: <201002231120.54401.jhb@freebsd.org> In-Reply-To: <64aa03031002181938rb9355a3sae56e9d854bdcf78@mail.gmail.com> References: <64aa03031002161803h667734cal4d668b9eb9c0a1a8@mail.gmail.com> <64aa03031002181921m2d00966cx6a3bb2c6e761970d@mail.gmail.com> <64aa03031002181938rb9355a3sae56e9d854bdcf78@mail.gmail.com>
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On Thursday 18 February 2010 10:38:38 pm Chris wrote: > > I'm seeing some difference in the bootloader output between using the > > F12 workaround or not: > > > > F12 workaround mode: > > > > FreeBSD/i386 boot > > Default: zroot:/boot/zfsloader > > boot: status > > config: > > > > NAME STATE > > zroot ONLINE > > gpt/disk0 ONLINE > > > > > > No F12 key pressed: > > > > FreeBSD/i386 boot > > Default: zroot:/boot/kernel/kernel > > config: > > > > NAME STATE > > zroot ONLINE > > gpt/disk0 ONLINE > > > > > > What's up with the differences between the Default boot setting? > > > > Sorry for the spam but I'm seeing something else very interesting.... > If I boot to Good Mode (F12) and break to the "boot:" prompt, the > system boots if I type /boot/zfsloader. However, if I type > /boot/kernel/kernel (as was seen in the Default setting when I didn't > hit F12), I get a crash that looks like the following: > ----------------------------------------- > FreeBSD/i386 boot > Default: zroot:/boot/zfsloader > boot: /boot/kernel/kernel > int=00000006 err=00000000 efl=00010882 eip=00200000 > eax=0018b070 ebx=ed7706bd ecx=c72e2ca8 edx=00000000 > esi=00000040 edi=000929d0 ebp=0009279c esp=00009401 > cs=0008 ds=0010 es=0010 fs=0010 gs=0010 ss=0010 > cs:eip=ff ff ff ff ff ff ff ff 7f-00 00 00 00 00 00 00 00 > 00 00 00 00 00 00 00 00-00 00 00 00 00 00 00 00 > ss:esp=36 80 0d 07 90 00 00 01-e9 c4 fc ff ff aa ac 84 > c0 0f 84 86 00 00 00 a8-80 74 f2 88 c5 b0 3d aa > BTX halted > ----------------------------------------- I'm not sure how well we support booting a kernel from boot2 anymore, much less from zfsboot. Using /boot/loader (or /boot/zfsloader) is probably the only tested (and realistically supported) case. -- John Baldwin
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