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Install Elementary Freya on ZFS root
Raw
01-elementaryos-zfs.md

Experimental 2015-04-25

# Create a usb disk with Elementary OS and Startup Disk Creator
# Boot it
sudo -i
apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get install --yes spl-dkms zfs-dkms ubuntu-zfs

setup zfs

zpool create -f rpool /dev/disk/by-id/ata-DISK
zfs set compression=lz4 rpool

zfs create rpool/ROOT
zfs create rpool/ROOT/elementary-1

zfs set mountpoint=/ rpool/ROOT/elementary-1
zpool set bootfs=rpool/ROOT/elementary-1 rpool
parted -s   /dev/disk/by-id/ata-DISK mkpart  GRUB2 48s 2047s
parted -s /dev/disk/by-id/ata-DISK set 2 bios_grub on
zpool export rpool
zpool import -R /mnt rpool
#debootstrap trusty /mnt
cp /etc/hosts /mnt/etc/
cp /etc/resolv.conf /mnt/etc/resolv.conf
nano /mnt/etc/hostname 
mount --rbind /dev      /mnt/dev
mount --rbind /proc     /mnt/proc
mount --rbind /sys      /mnt/sys
chroot /mnt /bin/bash --login
cp -rp /fire/EXISTING-ELEMENTARY-INSTALL /mnt
locale-gen en_US.UTF-8
dpkg-reconfigure tzdata
apt-get update
apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get install --yes ubuntu-zfs
apt-get install --yes grub-pc zfs-initramfs
wget -q -O /etc/cron.hourly/zfs-check https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/a0309ef9a6bec26b497b2ee7e00aaa2889310384/zfs-check.sh
wget -q -O /etc/cron.monthly/zfs-scrub https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/5b0904343897b1410fd57239879a0f43ff634883/zfs-scrub.sh
chmod 755 /etc/cron.hourly/zfs-check /etc/cron.monthly/zfs-scrub

wget -q -O /etc/sudoers.d/zfs https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/36a2b9e37819abffc6bfc2a9a36859afabf47754/zfs.sudoers
chmod 440 /etc/sudoers.d/zfs

# Change name of admin user
USERNAME="johnd"
adduser $USERNAME
cp -a /etc/skel/.[!.]* /home/$USERNAME

chown $USERNAME:$USERNAME /home/$USERNAME

usermod -a -G adm,audio,dialout,dip,cdrom,floppy,fuse,lpadmin,plugdev,sambashare,scanner,sudo,video $YOURUSERNAME
apt-get install grub-common grub-pc
apt-get install zfs-initramfs

cat > /etc/udev/rules.d/70-zfs-grub-fix.rules << 'EOF'
ENV{DEVTYPE}=="partition", IMPORT{parent}="ID_*", ENV{ID_FS_TYPE}=="zfs_member", SYMLINK+="$env{ID_BUS}-$env{ID_SERIAL} $env{ID_BUS}-$env{ID_SERIAL}-part%n"
EOF
udevadm trigger

sudo nano  /etc/default/grub
# add "boot=zfs" to GRUB_CMDLINE_LINUX_DEFAULT=

update-initramfs -c -k all
# update-initramfs: Generating /boot/initrd.img-3.2.0-40-generic
# 6.3 Update the boot configuration file:

update-grub
# Generating grub.cfg ...
# Found linux image: /boot/vmlinuz-3.2.0-40-generic
# Found initrd image: /boot/initrd.img-3.2.0-40-generic
# done
# Verify that boot=zfs appears in the boot configuration file:

grep boot=zfs /boot/grub/grub.cfg
# linux /ROOT/ubuntu-1/@/boot/vmlinuz-3.2.0-40-generic root=/dev/sda2 ro boot=zfs $bootfs quiet splash $vt_handoff
# linux /ROOT/ubuntu-1/@/boot/vmlinuz-3.2.0-40-generic root=/dev/sda2 ro single nomodeset boot=zfs $bootfs
# 6.4 Install the boot loader

grub-install $(readlink -f /dev/disk/by-id/scsi-SATA_disk1)
# Installation finished. No error reported.
   
exit
# 7.2 Run these commands in the LiveCD environment to dismount all filesystems:

umount -l /mnt/dev
umount -l /mnt/proc
umount -l /mnt/sys
zfs umount -a
zpool export rpool
reboot

# See issue https://github.com/zfsonlinux/pkg-zfs/issues/113 for adding a script to add dev link
# See issue for partition 1 workaround https://github.com/zfsonlinux/grub/issues/5
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70-zfs-grub-fix.rules
# cat > /etc/udev/rules.d/70-zfs-grub-fix.rules << 'EOF'
ENV{DEVTYPE}=="partition", IMPORT{parent}="ID_*", ENV{ID_FS_TYPE}=="zfs_member", SYMLINK+="$env{ID_BUS}-$env{ID_SERIAL} $env{ID_BUS}-$env{ID_SERIAL}-part%n"
EOF
# udevadm trigger
Raw
procedure_to_mirror_os.md

Procedure to mirror an os drive

  • Disk1 is original.
  • Disk2 is the new disk.
sudo zpool attach -f rpool /dev/disk/by-id/DISK1_SERIAL /dev/disk/by-id/DISK2_SERIAL
# Alternative version for 4k sectors
# sudo zpool attach -o ashift=12 -f rpool /dev/disk/by-id/DISK1_SERIAL /dev/disk/by-id/DISK2_SERIAL
# Make sure udev script exists to fix bug
sudo parted -s /dev/disk/by-id/DISK2_SERIAL mkpart GRUB2 48s 2047s
sudo parted -s /dev/disk/by-id/DISK2_SERIAL set 2 bios_grub on
sudo grub-install $(readlink -f /dev/disk/by-id/DISK2_SERIAL)
Raw
ubuntu-zfs.md 
sudo -i
apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get install --yes debootstrap spl-dkms zfs-dkms ubuntu-zfs

setup zfs

zpool create -f rpool /dev/disk/by-id/ata-DISK
zfs set compression=lz4 rpool

zfs create rpool/ROOT
zfs create rpool/ROOT/ubuntu-1

zfs set mountpoint=/ rpool/ROOT/ubuntu-1
zpool set bootfs=rpool/ROOT/ubuntu-1 rpool
parted -s   /dev/disk/by-id/ata-DISK mkpart  GRUB2 48s 2047s
parted -s /dev/disk/by-id/ata-DISK set 2 bios_grub on
zpool export rpool
zpool import -R /mnt rpool
debootstrap trusty /mnt
cp /etc/hosts /mnt/etc/
nano /mnt/etc/hostname 
mount --rbind /dev      /mnt/dev
mount --rbind /proc     /mnt/proc
mount --rbind /sys      /mnt/sys
chroot /mnt /bin/bash --login
locale-gen en_US.UTF-8
dpkg-reconfigure tzdata

apt-get update
apt-get install --yes ubuntu-minimal software-properties-common wget bsd-mailx patch
apt-add-repository --yes ppa:zfs-native/stable
apt-get update
apt-get install --yes --no-install-recommends linux-generic linux-headers-generic
apt-get install --yes ubuntu-zfs
apt-get install --yes grub-pc zfs-initramfs
wget -q -O /etc/cron.hourly/zfs-check https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/a0309ef9a6bec26b497b2ee7e00aaa2889310384/zfs-check.sh
wget -q -O /etc/cron.monthly/zfs-scrub https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/5b0904343897b1410fd57239879a0f43ff634883/zfs-scrub.sh
chmod 755 /etc/cron.hourly/zfs-check /etc/cron.monthly/zfs-scrub

wget -q -O /etc/sudoers.d/zfs https://gist.githubusercontent.com/fire/65f7aa33b91d3af2aef0/raw/36a2b9e37819abffc6bfc2a9a36859afabf47754/zfs.sudoers
chmod 440 /etc/sudoers.d/zfs

# Change name of admin user
USERNAME="johnd"
adduser $USERNAME
cp -a /etc/skel/.[!.]* /home/$USERNAME


chown $USERNAME:$USERNAME /home/$USERNAME

usermod -a -G adm,audio,dialout,dip,cdrom,floppy,fuse,lpadmin,plugdev,sambashare,scanner,sudo,video $YOURUSERNAME
apt-get install grub-common grub-pc
apt-get install zfs-initramfs

cat > /etc/udev/rules.d/70-zfs-grub-fix.rules << 'EOF'
ENV{DEVTYPE}=="partition", IMPORT{parent}="ID_*", ENV{ID_FS_TYPE}=="zfs_member", SYMLINK+="$env{ID_BUS}-$env{ID_SERIAL} $env{ID_BUS}-$env{ID_SERIAL}-part%n"
EOF
udevadm trigger

sudo nano  /etc/default/grub
# add "boot=zfs" to GRUB_CMDLINE_LINUX_DEFAULT=

update-initramfs -c -k all
# update-initramfs: Generating /boot/initrd.img-3.2.0-40-generic
# 6.3 Update the boot configuration file:

update-grub
# Generating grub.cfg ...
# Found linux image: /boot/vmlinuz-3.2.0-40-generic
# Found initrd image: /boot/initrd.img-3.2.0-40-generic
# done
# Verify that boot=zfs appears in the boot configuration file:

grep boot=zfs /boot/grub/grub.cfg
# linux /ROOT/ubuntu-1/@/boot/vmlinuz-3.2.0-40-generic root=/dev/sda2 ro boot=zfs $bootfs quiet splash $vt_handoff
# linux /ROOT/ubuntu-1/@/boot/vmlinuz-3.2.0-40-generic root=/dev/sda2 ro single nomodeset boot=zfs $bootfs
# 6.4 Install the boot loader

grub-install $(readlink -f /dev/disk/by-id/scsi-SATA_disk1)
# Installation finished. No error reported.

#8.2a Install a command-line environment only:
#apt-get install --yes ubuntu-standard
#8.2b Install a full GUI environment:
apt-get install --yes ubuntu-desktop

exit
# 7.2 Run these commands in the LiveCD environment to dismount all filesystems:

umount -l /mnt/dev
umount -l /mnt/proc
umount -l /mnt/sys
zfs umount -a
zpool export rpool
reboot

# See issue https://github.com/zfsonlinux/pkg-zfs/issues/113 for adding a script to add dev link
# See issue for partition 1 workaround https://github.com/zfsonlinux/grub/issues/5
Raw
zfs-check.sh
#!/bin/bash
# Make symlinks in /dev to allow kernel upgrades to succeed.
# Put in /etc/kernel/postinst.d
ZPOOL=$(which zpool)
if [ -z $ZPOOL ]; then
exit 0
fi
$ZPOOL status | grep -P '\t ' | tr -s ' ' | tr -d '\t' | cut -d' ' -f2 | while read line
do
if [ ! -e /dev/$line ]; then
ln -s /dev/disk/by-id/"$line"-part1 /dev/$line
fi
done
Raw
zfs-scrub.sh
#!/bin/sh -eu
which zpool >/dev/null || exit 0
zpool list -H -o health,name 2>&1 | \
awk 'BEGIN {FS="\t"} {if ($1 ~ /^ONLINE/) print $2}' | \
while read pool ; do
zpool scrub "$pool"
done
Raw
zfs.sudoers
Cmnd_Alias C_ZFS = \
/sbin/zfs "", \
/sbin/zfs help *, \
/sbin/zfs get, \
/sbin/zfs get *, \
/sbin/zfs list, \
/sbin/zfs list *, \
/sbin/zpool "", \
/sbin/zpool help *, \
/sbin/zpool iostat, \
/sbin/zpool iostat *, \
/sbin/zpool list, \
/sbin/zpool list *, \
/sbin/zpool status, \
/sbin/zpool status *, \
/sbin/zpool upgrade, \
/sbin/zpool upgrade -v
# Allow read-only ZFS commands to be called through sudo without a password.
ALL ALL = (root) NOPASSWD: C_ZFS
@pmarreck
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pmarreck commented Jan 4, 2020 •
edited
Loading

Do you think this would be more or less an identical procedure on elementaryOS Hera? Looking to try it out on ZFS root

@fire
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fire commented Jan 5, 2020

I have not touched elementary os in a very long time.

One of my main oses is Fedora and it supports Elementary OS's Pantheon.

https://fedoraproject.org/wiki/Changes/PantheonDesktop

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