Date: Tue, 24 Mar 2015 23:56:34 -0500 (CDT) From: Greg Rivers <gcr+freebsd-stable@tharned.org> To: freebsd-stable@freebsd.org Subject: Booting from ZFS Message-ID: <alpine.BSF.2.20.1503242331240.1843@angus.tharned.org>
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I'm trying to build a bootable ZFS system on a USB drive. Using the procedure below results in the following error when I try to boot: gptzfsboot: error 66 LBA 48 gptzfsboot: error 66 LBA 1 gptzfsboot: No ZFS pools located, can't boot I'm using the dist files from the latest STABLE snapshot on a system running 10.1-STABLE r279968 amd64. I've tried it with and without file system compression. I found a similar report[1] in the FreeBSD Forums, but there was no conclusion to that posting. What am I doing wrong? [1] https://forums.freebsd.org/threads/freebsd-10-w-fresh-root-on-zfs-fails-to-boot.47651/#post-266106 --------------------------------------------------------------------------- #!/bin/ksh set -x -e DISK=diskid/DISK-4C530009730530116424 TMPDIR=/mnt gpart destroy -F ${DISK} || : gpart create -s GPT ${DISK} gpart add -a 4k -s 512k -t freebsd-boot ${DISK} # p1 gpart add -a 4k -s 1g -t freebsd-swap ${DISK} # p2 gpart add -a 4k -t freebsd-zfs ${DISK} # p3 gpart bootcode -b /boot/pmbr -p /boot/gptzfsboot -i 1 ${DISK} sysctl vfs.zfs.min_auto_ashift=12 zpool create -o altroot=${TMPDIR} -m none -f syspool ${DISK}p3 zfs create -o mountpoint=none syspool/ROOT zfs create -o mountpoint=/ -o compression=lz4 syspool/ROOT/default zpool set bootfs=syspool/ROOT/default syspool zfs create -o mountpoint=/var -o compression=lz4 syspool/var zfs create -o mountpoint=/usr -o compression=lz4 syspool/usr zfs create -o mountpoint=/home -o compression=lz4 syspool/home for DIST in base kernel lib32 games doc do fetch -o - ftp://ftp.freebsd.com/pub/FreeBSD/snapshots/amd64/amd64/10.1-STABLE/${DIST}.txz | tar -C ${TMPDIR} -x -f - done cat <<\! >${TMPDIR}/boot/loader.conf zfs_load="YES" ! cat <<\! >${TMPDIR}/etc/rc.conf zfs_enable="YES" ! cat <<\! >${TMPDIR}/etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/da0p2 none swap sw 0 0 tmpfs /tmp tmpfs rw 0 0 procfs /proc procfs rw 0 0 fdescfs /dev/fd fdescfs rw 0 0 ! zpool export syspool --------------------------------------------------------------------------- -- Greg Rivers
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