Create ZFS filesystem hierarchy
The fletcher4 algorithm should be more robust than the fletcher2 algorithm.
Fixit# zfs set checksum=fletcher4 zroot
Fixit# zfs create -o compression=on -o exec=on -o setuid=off zroot/tmp Fixit# chmod 1777 /zroot/tmp
Fixit# zfs create zroot/usr Fixit# zfs create zroot/usr/home Fixit# cd /zroot ; ln -s /usr/home home
Fixit# zfs create -o compression=lzjb -o setuid=off zroot/usr/ports Fixit# zfs create -o compression=off -o exec=off -o setuid=off zroot/usr/ports/distfiles Fixit# zfs create -o compression=off -o exec=off -o setuid=off zroot/usr/ports/packages
Note:
If you use nullfs or nfs to mount /usr/ports to different locations/servers, you will also need to nullfs/nfs mount /usr/ports/distfiles and/or /usr/ports/packages.
Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/usr/src
Fixit# zfs create zroot/var Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/var/crash Fixit# zfs create -o exec=off -o setuid=off zroot/var/db Fixit# zfs create -o compression=lzjb -o exec=on -o setuid=off zroot/var/db/pkg Fixit# zfs create -o exec=off -o setuid=off zroot/var/empty Fixit# zfs create -o compression=lzjb -o exec=off -o setuid=off zroot/var/log Fixit# zfs create -o compression=gzip -o exec=off -o setuid=off zroot/var/mail Fixit# zfs create -o exec=off -o setuid=off zroot/var/run Fixit# zfs create -o compression=lzjb -o exec=on -o setuid=off zroot/var/tmp Fixit# chmod 1777 /zroot/var/tmp
Note:
- Compression may be set to on, off, lzjb, gzip, gzip-N (where N is an integer from 1 (fastest) to 9 (best compression ratio. gzip is equivalent to gzip-6).
Compression will cause some latency when accessing files on the ZFS filesystems. Use compression on ZFS filesystems which will not be accessed that often.
- Install FreeBSD to zroot
Fixit# cd /dist/8.0-* Fixit# export DESTDIR=/zroot Fixit# for dir in base catpages dict doc games info lib32 manpages ports; \ do (cd $dir ; ./install.sh) ; done Fixit# cd src ; ./install.sh all Fixit# cd ../kernels ; ./install.sh generic Fixit# cd /zroot/boot ; cp -Rlp GENERIC/* /zroot/boot/kernel/ - Make /var/empty readonly
Fixit# zfs set readonly=on zroot/var/empty
- chroot into /zroot
Fixit# chroot /zroot
- Create /etc/rc.conf
Fixit# echo 'zfs_enable="YES"' > /etc/rc.conf Fixit# echo 'hostname="beastie.mydomain.local"' >> /etc/rc.conf Fixit# echo 'ifconfig_re0="DHCP"' >> /etc/rc.conf
Note:
- Replace re0 with the name of the Network interface for the new system
- Create /boot/loader.conf
Fixit# echo 'zfs_load="YES"' > /boot/loader.conf Fixit# echo 'vfs.root.mountfrom="zfs:zroot"' >> /boot/loader.conf
- Change root's password
Fixit# passwd
- Set the local time zone
Fixit# tzsetup
- Create /etc/mail/aliases.db
Fixit# cd /etc/mail Fixit# make aliases
- Exit from the /zroot
Fixit# umount /dev Fixit# exit
- Install zpool.cache to the ZFS filesystem
Fixit# cp /boot/zfs/zpool.cache /zroot/boot/zfs/zpool.cache
