2010/1/6 Anselm Strauss <amsiba...@gmail.com> > Hi, > > I'm experimenting with a ZFS only system and booting from it in VirtualBox. > Thanks to various mails and forum posts from the net I have a working > scenario with booting from a ZFS mirror. However, I can't get the thing to > work with raidz with the exactly same setup, except that the pool is now > raidz instead of mirror and there is one more disk. I feel sure I have all > the stuff with partitioning, boot loader installation, etc. right. I tested > this with version 8.0-RELEASE on 64bit. > > Now, before I go into detailed explaining, is raidz really supported? I > always get the following error after it says "FreeBSD/i386 bootstrap loader, > Revision 1.1": > > ZFS: i/o error - all block copies unavailable > ZFS: can't read MOS object directory > (repeats a lot) > Can't find root filesystem - giving up > can't load 'kernel' > > I think the "MOS" message comes from zfs_mount_root() in > /usr/src/sys/boot/zfs/zfsimpl.c. I asume that is the point when /boot/loader > has been loaded and now wants to load the kernel into memory. After that > error I'm in the loader prompt. When I try to load any file I always get the > same error as above. > > Anyone any ideas? > > Thanks, > Anselm_______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscr...@freebsd.org" >
Opensolaris doesnt support booting off raidz yet so id be surprised if you managed to, as i doubt all the relevent code is in the loader, and robust enough yet. I have seen a few hacks mentioned in places that might get it to work, bit these are unsupported and might flake out at any time. Also why do you need a raidz for the os? It implys you might be mixing data on the pool as well. This isnt best practice, and you are best off having a separate pool for os and data. If you have 3+ drives, gpt it into 3 or 4 chunks dependent on whether you want swap on a zvol. Have and x way mirror for the os and then the last and biggest gpt slice use for your raidz data. Better still have the os and data on separate spindles _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
