Attempting ZFS Only Install of 7.2
rnoland at FreeBSD.org
Thu Jul 16 11:27:14 UTC 2009
On Wed, 2009-07-15 at 19:33 -0500, Jason Garrett wrote:
> Top Post, I know... but has anyone on @current tried a full on ZFS on ROOT
> with GPTZFSBOOT?
> Both Drew and I have both tried the guide at
> http://lulf.geeknest.org/blog/freebsd/Setting_up_a_zfs-only_system/ (dead
> link now :( )
> I get as far as the message I detailed before using parts from another
> guide. I am hoping for both of us, that someone here knows even a little
I've done this a few times now... Initially I followed this guide, but
still had a few issues. On at least one of my boxes it was nessecary to
mark the partition as active which I couldn't do with gpart. IIRC, I
used fdisk to "change the active partition" after setting up everything
Now, for installation... My solution here was that I took a scratch disk
and did a minimal install, then pulled the tree and did buildworld /
buildkernel (with LOADER_ZFS_SUPPORT="YES"). I then set DESTDIR to the
root of the intended zfs system (/data in my case) and did make
DESTDIR=/data installworld && make DESTDIR=/data installkernel && make
My memory isn't what it used to be, so I should have documented it for
myself once I figured it all out, but I think I'm remembering it all
correctly. I have three of my machines running this way, all installed
from the same scratch disk with the build on it.
All of mine run -CURRENT and I'm not certain how 7.2 differs in this
> On Wed, Jul 15, 2009 at 17:12, Jason Garrett <kingedgar at gmail.com> wrote:
> > On Mon, Jul 13, 2009 at 18:09, Drew Tomlinson <drew at mykitchentable.net>wrote:
> >> Jason Garrett wrote:
> >>> On Mon, Jul 13, 2009 at 13:30, Drew Tomlinson <drew at mykitchentable.net<mailto:
> >>> drew at mykitchentable.net>> wrote:
> >>> Jason Garrett wrote:
> >>> >snip
> >>> I see you tried the zpool import and export, but did you
> >>> perform `mkdir /boot/zfs` directly before `zpool export tank
> >>> && zpool import tank` ?
> >>> I just have to ask because I did not see that specified, and
> >>> you mention not being able to find zpool.cache. /boot/zfs is
> >>> where zpool.cache hides out.
> >>> Yes I did. However I figured out my problem. I was chrooted into
> >>> /dist and the zpool.cache was being written to /boot/zfs (as you
> >>> mention). But because of the chroot, when I checked /boot/zfs, I
> >>> was *really* checking /dist/boot/zfs. Thus my problem. :)
> >>> However I'm still having difficulty. I suspect I don't have a
> >>> /boot/loader that supports zfs filesystems as I just boot to the
> >>> 'OK" prompt. An 'lsdev' only shows BIOS devices but I've seen
> >>> posts on the Net that indicate I should have zfs devices listed
> >>> there too if I have a proper /boot/loader. I've used the one from
> >>> both 7.2-RELEASE.iso and 8.0-BETA1.iso but no luck. Do you know
> >>> of any way I can confirm or deny my suspicion?
> >>> I am in the same spot you are now. I started the process yesterday but
> >>> had to quit because it got too late. Apparently the few who have written
> >>> these guides have gotten it to work, but that still eludes me. I'll post
> >>> back if I get it working or have any new developments.
> >> Well you're doing better than me. I've been at this for about 10 days off
> >> and on. :)
> >> Cheers,
> >> Drew
> > Ok, now a few days later and still frustrated. Basically I narrowed my
> > install down to one drive, divided up with gpt. I used a few sections from
> > http://wiki.freebsd.org/ZFSOnRootWithZFSboot - specifially the section on
> > installing the sources from /dist/8.0-BETA1 as well as rebuilding the loader
> > as this guide says.
> > I actually got it to load the kernel, goes through that ok. As soon as it
> > tries to mount the root filesystem, it hangs with the following messages.
> > (Won't respond to the keyboard anymore)
> > -----------
> > Trying to mount root from zfs:zroot
> > ROOT MOUNT ERROR:
> > If you have invalid mount options, reboot, and first try the following from
> > the loader prompt:
> > set vfs.root.mountfrom.options=rw (did this,no luck.. also
> > switched to an /etc/fstab layout, still no go)
> > and then remove the invalid mount options from /etc/fstab.
> > Loader Variables:
> > vfs.root.mountfrom=zfs:zroot
> > vfs.root.mountfrom.options=rw,noatime (this is from the /etc/fstab attempt)
> > ----------
> > Then it describes some specifications on how to use the <fstype>:<device>.
> > I just don't get how some are getting this working, yet it comes so hard
> > for others.
> > Drew, I hope you have had better luck than I. I may just give up until it
> > is a viable solution.
> >> --
> >> Be a Great Magician!
> >> Visit The Alchemist's Warehouse
> >> http://www.alchemistswarehouse.com
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Robert Noland <rnoland at FreeBSD.org>
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