Hey Kugutsumen, Kugutsumen wrote: > Ref: http://blogs.sun.com/timf/entry/zfs_bootable_datasets_happily_rumbling > Ref: http://mediacast.sun.com/share/timf/zfs-actual-root-install.sh > > This is my errata for Tim Foster's zfs root install script:
Thanks for the edits, much appreciated. I'm up to my eyes at the moment, but would definitely like to test out your suggested changes across a few different machines to make sure they're sane before adding them to the script - they look okay to me on 1st inspection. I wrote the script based on the instructions at http://opensolaris.org/os/community/zfs/boot/zfsboot-manual/ so I guess we'd need to mention your changes there too. I believe the ultimate aim for ZFS root is to have separate filesystems as you suggest - eg. http://blogs.sun.com/lalt/entry/zfs_boot_issue_of_the - but in the meantime, if folks do need to have separate filesystems, it looks like your addendums will sort that out. Personally, I like the simplicity involved in having a single dataset for root - creating root clones with a single command is lovely, so perhaps we just need a single command to do that in the face of multiple filesystems! (which I'm sure is the eventual plan) I do understand why folks carve things up though - so long as kernel and userland filesystems are always cloned/upgraded at the same time, what could possibly go wrong! ;-) cheers, tim > 1/ Correct mode for /tmp should be 1777. > > 2/ The zfs boot install should allow you to have /usr on a separate zpool: > > a/ We need to create /zfsroot/usr/lib in the root partition and copy > /usr/lib/libdiskmgt.so* to it. > > b/ During boot up, solaris will mount an optimized libc on top of > /lib/libc.so.1, > and Tim's script fails to copy it correctly. Init will be killed in a > loop if the C library is absent. > In the part of the script which populates the devices and /dev > directories, > we must copy /zfs-root-tmp.$$/lib/libc.so.1 /zfsroot/lib. > > Now you can have /usr, /opt, /var and /home on a separate raidz zpool. > My zfs root takes only 500 megs and sits nicely on two 1 gig USB flash disks. > > zfs create tank/usr > zfs set mountpoint=legacy tank/usr > mkdir /mnt/usr > mount -F zfs tank/usr /mnt/usr > /usr/sfw/bin/gtar Ccp /usr . | /usr/sfw/bin/gtar Cxp /mnt/usr > echo >>/zfsroot/etc/vfstab tank/usr - /usr zfs - yes - > > If you move /var to a separate partition, make sure you keep /var/run > directory in your zfs root. > > Tested on b75a and b75a xVm should also work with b70, etc. > > kugutsumen > > You can find a patch for Tim's script here: > http://www.kugutsumen.com/showthread.php?t=1740 > > > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Tim Foster, Sun Microsystems Inc, Solaris Engineering Ops http://blogs.sun.com/timf _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
