amd64/160801: zfsboot on 8.2-RELEASE fails to boot from
root-on-zfs in MBR slice
ged at iki.fi
Mon Sep 19 14:26:59 UTC 2011
On 2011-09-19 15:02, John Baldwin wrote:
>> Install zfsboot from 9.0-BETA2, where the problem is fixed.
> Can you test 8.2-stable? The various fixes made to zfsboot in 9 were merged
> to 8 after 8.2-release.
Unfortunately fixing this issue by installing zfsboot from 9.0-BETA2 was
a surprising amount of work, because of an incompatibility between the
9.0 USB installer GPT and the BIOS on this system. It took quite a
while to recognize the root cause for that one. I simply cannot boot
the system in question with the GPT pmbr used on the memstick of 9.0.
The BIOS locks completely.
I am very reluctant to risk breaking my currently running system, the
previous boot failure caused almost two weeks of downtime.
Does the 8.2-stable memstick image still use MBR? If so, I could
conceivably try to copy the 9.0 zfsboot version to the 8.2-stable
memstick and test both.
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