ZFSROOT / Custom Kernels [or upgrades]

[Philip M. Gollucci]

Hi All,

1)
I followed this wiki link to setup our server [sigyn.apache.org]
(Dell r710 with 4 disks mfid[0123] as raidz2)
http://wiki.freebsd.org/RootOnZFS/GPTZFSBoot/RAIDZ2

Rebooted all was well.

2) off on another 'build' box [loki.apache.org], I had compiled
release/8.0.0 userland+kernel [with LOADER_ZFS_SUPPORT=yes].
Whats the ETA for MFC from trunk->stable/8 for
http://svn.freebsd.org/viewvc/base?view=revision&revision=199714

** FWIW, loki is working nicely on 8.0-RELEASE geom+zfs.

3) I nfs mounted /usr/src, and /usr/obj on sigyn from loki.
$ cd /usr/src
$ sudo make installkernel KERNCONF=SIGYN

It fails to mount from zfs:zroot upon reboot. Via great hoops and magic
I got back into the fixit on remote console. I didn't see a loader.old
or a zfsboot. So I repeated the steps in wiki to install zfsboot.
Rebooted, same diff.

Jumped backed to fixit and reverted the kernel to a stock GENERIC that
worked the 1st time.  Same error again.
cd /boot
$ mv kernel kernel.cust
$ mv kernel.old kernel

So assuming you are lucky enough to get a zfsroot system.  Is there an
actual upgrade path ? Am I missing something stupid ?

Any help greatly appreciated.

I have a few days to play with this machine before we forgoe zfsroot and
drop back to geom gmirror.

I'm at a datacenter for $work on Monday/Tuesday so I'll be spare over
tonight.






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Philip M. Gollucci (pgollucci at p6m7g8.com) c: 703.336.9354
VP Apache Infrastructure; Member, Apache Software Foundation
Committer,                        FreeBSD Foundation
Sr. System Admin,                 Ridecharge Inc.
Consultant,                       P6M7G8 Inc.

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