freebsd-dev/sys/boot/sparc64/Makefile

# $FreeBSD$

SUBDIR=	boot1 loader zfsboot zfsloader

.include <bsd.subdir.mk>
Add a Makefile for sparc64 at this level. 2002-03-28 01:01:43 +00:00			`# $FreeBSD$`

Add initial support for booting from ZFS on sparc64. At least on Sun Fire V100, the firmware is known to be broken and not allowing to simultaneously open disk devices, causing attempts to boot from a mirror or RAIDZ to cause a crash. This will be worked around later. The firmwares of newer sun4u models don't seem to exhibit this problem though. Steps for ZFS booting: 1. create VTOC8 label # gpart create -s vtoc8 da0 2. add partitions, f.e.: # gpart add -t freebsd-zfs -s 60g da0 # gpart add -t freebsd-swap da0 resulting in something like: # gpart show => 0 143331930 da0 VTOC8 (68G) 0 125821080 1 freebsd-zfs (60G) 125821080 17510850 2 freebsd-swap (8.4G) 3. create zpool # zpool create bunker da0a or for mirror/RAIDZ (after preparing additional disks as in steps 1. + 2.): # zpool create bunker mirror da0a da1a # zpool create bunker raidz da0a da1a da2a ... 4. set bootfs # zpool set bootfs=bunker bunker 5. install zfsboot # zpool export bunker # gpart bootcode -p /boot/zfsboot da0 6. write zfsloader to the ZFS Boot Block (so far, there's no dedicated tool for this, so dd(1) has to be used for this purpose) When using mirror/RAIDZ, step 4. and the dd(1) invocation should be repeated for the additional disks in order to be able to boot from another disk in case of failure. # sysctl kern.geom.debugflags=0x10 # dd if=/boot/zfsloader of=/dev/da0a bs=512 oseek=1024 conv=notrunc # zpool import bunker 7. install system on ZFS filesystem Don't forget to set 'zfs_load="YES"' and vfs.root.mountfrom="zfs:bunker" in loader.conf as well as 'zfs_enable="YES"'in rc.conf. 8. copy zpool.cache to the ZFS filesystem cp -p /boot/zfs/zpool.cache /bunker/boot/zfs/zpool.cache 9. set mountpoint # zfs set mountpoint=/ bunker 10. Now, given that aliases for all disks in the zpool exists (check with the `devalias` command on the boot monitor prompt) and disk0 corresponds to da0 (likewise for additional disks), the system can be booted from the ZFS with: {1} ok boot disk0 PR: 165025 Submitted by: Gavin Mu 2012-05-01 17:16:01 +00:00			`SUBDIR= boot1 loader zfsboot zfsloader`
Add a Makefile for sparc64 at this level. 2002-03-28 01:01:43 +00:00
			`.include <bsd.subdir.mk>`