Open VERTlG0 opened 6 years ago
Located on lines 109 and 119, 'grub2-probe' and 'grub2-install' are now 'grub-probe' and 'grub-install'
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zpool create -f -o ashift=12 -o cachefile=/tmp/zpool.cache -O normalization=formD -m none -R /mnt/gentoo -d -o feature@async_destroy=enabled -o feature@empty_bpobj=enabled -o feature@lz4_compress=enabled -o feature@spacemap_histogram=enabled -o feature@enabled_txg=enabled -o feature@extensible_dataset=enabled -o feature@bookmarks=enabled rpool /dev/sda
zfs umount "/mnt/gentoo/rpool" rmdir "/mnt/gentoo/rpool"
zfs create -o mountpoint=none rpool/ROOT zfs create -o mountpoint=/ rpool/ROOT/gentoo
zfs create -o mountpoint=/home rpool/HOME zfs create -o mountpoint=/root rpool/HOME/root
zfs create -o mountpoint=none -o setuid=off rpool/GENTOO zfs create -o mountpoint=/usr/portage -o atime=off rpool/GENTOO/portage zfs create -o mountpoint=/usr/portage/distfiles rpool/GENTOO/distfiles
zfs create -o mountpoint=/var/tmp/portage -o compression=lz4 -o sync=disabled rpool/GENTOO/build-dir
zfs create -o mountpoint=/usr/portage/packages rpool/GENTOO/packages
zfs create -o mountpoint=/var/tmp/ccache -o compression=lz4 rpool/GENTOO/ccache
zpool set bootfs=rpool/ROOT/gentoo rpool
wget 'ftp://gentoo.osuosl.org/pub/gentoo/releases/amd64/autobuilds/current-stage3-amd64/stage3-amd64-[0-9]*.tar.bz2'
tar -xvjpf stage3-amd64-*.tar.bz2 -C /mnt/gentoo
mkdir -p /mnt/gentoo/etc/zfs cp /tmp/zpool.cache /mnt/gentoo/etc/zfs/zpool.cache
cp /etc/resolv.conf /mnt/gentoo/etc/resolv.conf
mount -t proc none /mnt/gentoo/proc mount --rbind /dev /mnt/gentoo/dev mount --rbind /sys /mnt/gentoo/sys
chroot /mnt/gentoo /bin/bash env-update; source /etc/profile; export PS1="(chroot) $PS1"; cd
env GENTOO_MIRRORS="http://gentoo.osuosl.org" emerge-webrsync
emerge sys-kernel/genkernel
emerge sys-kernel/gentoo-sources
genkernel kernel --no-clean --no-mountboot
echo "sys-kernel/spl ~amd64" >> /etc/portage/package.accept_keywords echo "sys-fs/zfs-kmod ~amd64" >> /etc/portage/package.accept_keywords echo "sys-fs/zfs ~amd64" >> /etc/portage/package.accept_keywords emerge sys-fs/zfs
rc-update add zfs-import boot rc-update add zfs-mount boot rc-update add zfs-share default rc-update add zfs-zed default
emerge sys-apps/gptfdisk
sgdisk --new=2:48:2047 --typecode=2:EF02 --change-name=2:"BIOS boot partition" /dev/sda
echo 1 > /proc/sys/vm/drop_caches
echo "sys-boot/grub:2 libzfs" >> /etc/portage/package.use/zfs echo "sys-boot/grub:2 ~amd64" >> /etc/portage/package.accept_keywords emerge sys-boot/grub:2 touch /etc/mtab
grub2-probe /
emerge -1v --nodeps =sys-fs/zfs-0.6.5.3
grub2-install /dev/sda
touch /boot/grub/grub.cfg
genkernel all --no-clean --no-mountboot --zfs --bootloader=grub2 --callback="emerge @module-rebuild"
emerge -1v --nodeps sys-fs/zfs genkernel initramfs --no-clean --no-mountboot --zfs
sed -i -e "s/(.)\/(BOOT|ROOT|SWAP)(.)/#\1\/\2\3/g" /etc/fstab
zfs snapshot rpool/ROOT/gentoo@install
echo options zfs zfs_arc_max=536870912 >> /etc/modprobe.d/zfs.conf
echo PORTAGE_NICENESS=19 >> /etc/make.conf
cat << END > /usr/local/sbin/portage-cgroup
cgroup=$(mktemp -d --tmpdir=/sys/fs/cgroup/cpu portage-XXXX) && echo $1 > "${cgroup}/tasks" && echo 1 > "${cgroup}/notify_on_release" echo 256 > "${cgroup}/cpu.shares" END chmod u+x /usr/local/sbin/portage-cgroup echo 'PORTAGE_IONICE_COMMAND="/usr/local/sbin/portage-cgroup \${PID}"' >> /etc/make.conf
zfs create -o sync=always -o primarycache=metadata -o secondarycache=none -b 4K -V 8G rpool/swap mkswap -f /dev/zvol/rpool/swap zfs snapshot rpool/swap@install
zfs create -o mountpoint=/home/user rpool/HOME/user
Located on lines 109 and 119, 'grub2-probe' and 'grub2-install' are now 'grub-probe' and 'grub-install'
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Boot Linux Live CD with ZFS support
fearedbliss maintains a variant of System Rescue CD that is highly recommended:
https://wiki.gentoo.org/wiki/User:Fearedbliss
Instruction for a USB key version
http://www.sysresccd.org/Sysresccd-manual-en_How_to_install_SystemRescueCd_on_an_USB-stick
Create pool
zpool create -f -o ashift=12 -o cachefile=/tmp/zpool.cache -O normalization=formD -m none -R /mnt/gentoo -d -o feature@async_destroy=enabled -o feature@empty_bpobj=enabled -o feature@lz4_compress=enabled -o feature@spacemap_histogram=enabled -o feature@enabled_txg=enabled -o feature@extensible_dataset=enabled -o feature@bookmarks=enabled rpool /dev/sda
Workaround 0.6.4 regression
zfs umount "/mnt/gentoo/rpool" rmdir "/mnt/gentoo/rpool"
Create rootfs
zfs create -o mountpoint=none rpool/ROOT zfs create -o mountpoint=/ rpool/ROOT/gentoo
Create home directories
zfs create -o mountpoint=/home rpool/HOME zfs create -o mountpoint=/root rpool/HOME/root
Create portage directories
zfs create -o mountpoint=none -o setuid=off rpool/GENTOO zfs create -o mountpoint=/usr/portage -o atime=off rpool/GENTOO/portage zfs create -o mountpoint=/usr/portage/distfiles rpool/GENTOO/distfiles
Create portage build directory
zfs create -o mountpoint=/var/tmp/portage -o compression=lz4 -o sync=disabled rpool/GENTOO/build-dir
Create optional packages directory
zfs create -o mountpoint=/usr/portage/packages rpool/GENTOO/packages
Create optional ccache directory
zfs create -o mountpoint=/var/tmp/ccache -o compression=lz4 rpool/GENTOO/ccache
Set bootfs
zpool set bootfs=rpool/ROOT/gentoo rpool
Download stage3
wget 'ftp://gentoo.osuosl.org/pub/gentoo/releases/amd64/autobuilds/current-stage3-amd64/stage3-amd64-[0-9]*.tar.bz2'
Extract stage3
tar -xvjpf stage3-amd64-*.tar.bz2 -C /mnt/gentoo
Copy zpool.cache into chroot
mkdir -p /mnt/gentoo/etc/zfs cp /tmp/zpool.cache /mnt/gentoo/etc/zfs/zpool.cache
Copy resolv.conf into chroot
cp /etc/resolv.conf /mnt/gentoo/etc/resolv.conf
Mount filesystems
mount -t proc none /mnt/gentoo/proc mount --rbind /dev /mnt/gentoo/dev mount --rbind /sys /mnt/gentoo/sys
chroot
chroot /mnt/gentoo /bin/bash env-update; source /etc/profile; export PS1="(chroot) $PS1"; cd
Get portage snapshot (use OSUOSL mirror because it is usually fast)
env GENTOO_MIRRORS="http://gentoo.osuosl.org" emerge-webrsync
Install genkernel
emerge sys-kernel/genkernel
Install sources
emerge sys-kernel/gentoo-sources
Build initial kernel (required for checks in sys-kernel/spl and sys-fs/zfs)
FIXME: Make genkernel support modules_prepare
genkernel kernel --no-clean --no-mountboot
Install ZFS
echo "sys-kernel/spl ~amd64" >> /etc/portage/package.accept_keywords echo "sys-fs/zfs-kmod ~amd64" >> /etc/portage/package.accept_keywords echo "sys-fs/zfs ~amd64" >> /etc/portage/package.accept_keywords emerge sys-fs/zfs
Add zfs to boot runlevel
rc-update add zfs-import boot rc-update add zfs-mount boot rc-update add zfs-share default rc-update add zfs-zed default
Install gptfdisk
emerge sys-apps/gptfdisk
Make BIOS Boot Partition (make certain /dev/sda is your actual block device!)
sgdisk --new=2:48:2047 --typecode=2:EF02 --change-name=2:"BIOS boot partition" /dev/sda
Flush the page cache to ensure GRUB2 sees the latest disk content
echo 1 > /proc/sys/vm/drop_caches
Install GRUB2
echo "sys-boot/grub:2 libzfs" >> /etc/portage/package.use/zfs echo "sys-boot/grub:2 ~amd64" >> /etc/portage/package.accept_keywords emerge sys-boot/grub:2 touch /etc/mtab
sys-fs/zfs-kmod and sys-fs/zfs switched to a proposed stable /dev/zfs API in
0.6.5.3. This breaks GRUB2 if the userland expects the new ABI and the kernel
modules in the live environment do not support it.
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Provided you have the latest ebuilds (0.6.5.3-r1), your userland should be
using the stable ABI. You can see if the new stable ABI is supported in your
live environment by running grub2-probe:
grub2-probe /
Idealy, grub2-probe would print "zfs" (without the quotes). If grub2-probe
reported an error, it is likely that your kernel modules from your live
environment do not support the new ABI. The kernel modules from 0.6.5.3-r1
support both, so install the older userland tools as a workaround. This will
avoid a failure in grub2-install and/or genkernel's invocation of grub2-mkconfig.
emerge -1v --nodeps =sys-fs/zfs-0.6.5.3
Install GRUB2 to disk (make certain /dev/sda is your actual block device!)
grub2-install /dev/sda
We must create an empty configuration file so genkernel fines the right one.
touch /boot/grub/grub.cfg
Build kernel and initramfs
genkernel all --no-clean --no-mountboot --zfs --bootloader=grub2 --callback="emerge @module-rebuild"
If you needed to install the old tools, you should run the following to
install the new tools again and update the initramfs archive.
emerge -1v --nodeps sys-fs/zfs genkernel initramfs --no-clean --no-mountboot --zfs
Comment the BOOT, ROOT and SWAP lines in /etc/fstab
sed -i -e "s/(.)\/(BOOT|ROOT|SWAP)(.)/#\1\/\2\3/g" /etc/fstab
#
Follow chapters 8 through 12 of Gentoo Handboook: http://www.gentoo.org/doc/en/handbook/
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Make recovery snapshot after booting into new install
zfs snapshot rpool/ROOT/gentoo@install
Additional tips
ARC tuning - You can configure the RAM that ARC uses in bytes
echo options zfs zfs_arc_max=536870912 >> /etc/modprobe.d/zfs.conf
Set portage niceness to minimize potential for updates to cause lag
echo PORTAGE_NICENESS=19 >> /etc/make.conf
Set portage to compile in a CGROUP to minimize lag
cat << END > /usr/local/sbin/portage-cgroup
!/bin/sh
$1 must be the portage PID
cgroup=$(mktemp -d --tmpdir=/sys/fs/cgroup/cpu portage-XXXX) && echo $1 > "${cgroup}/tasks" && echo 1 > "${cgroup}/notify_on_release" echo 256 > "${cgroup}/cpu.shares" END chmod u+x /usr/local/sbin/portage-cgroup echo 'PORTAGE_IONICE_COMMAND="/usr/local/sbin/portage-cgroup \${PID}"' >> /etc/make.conf
Swap support
zfs create -o sync=always -o primarycache=metadata -o secondarycache=none -b 4K -V 8G rpool/swap mkswap -f /dev/zvol/rpool/swap zfs snapshot rpool/swap@install
Edit fstab to use swap here
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Note: Integrate
zfs create -o mountpoint=/home/user rpool/HOME/userinto procedure#