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ubuntu autoinstall with btrfs subvolumes
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| #cloud-config | |
| # based on | |
| # * https://ubuntu.com/server/docs/install/autoinstall-quickstart | |
| # * https://curtin.readthedocs.io/en/latest/topics/storage.html | |
| # * https://gist.github.com/wpbrown/b688a934339cb4228c3faf5b527fbe5b | |
| autoinstall: | |
| version: 1 | |
| identity: | |
| hostname: autoinstalled | |
| password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0" | |
| username: foo | |
| locale: en_US.UTF-8 | |
| layout: us | |
| ssh: | |
| install-server: true | |
| # early-commands: | |
| # - "blkdiscard /dev/sda || true" | |
| storage: | |
| version: 1 | |
| swap: | |
| size: 0 | |
| config: | |
| # disks | |
| - id: ssd0 | |
| type: disk | |
| path: /dev/sda | |
| match: | |
| ssd: yes | |
| ptable: gpt | |
| grub_device: true | |
| wipe: superblock | |
| # partitions | |
| - id: ssd0p1_bios_grub | |
| type: partition | |
| device: ssd0 | |
| number: 1 | |
| size: 1M | |
| flag: bios_grub | |
| - id: ssd0p2_swap | |
| type: partition | |
| device: ssd0 | |
| number: 2 | |
| size: 4G | |
| flag: swap | |
| - id: ssd0p3_root | |
| type: partition | |
| device: ssd0 | |
| number: 3 | |
| size: 90G | |
| # formats | |
| - id: fs_swap | |
| type: format | |
| volume: ssd0p2_swap | |
| fstype: swap | |
| - id: fs_root | |
| type: format | |
| volume: ssd0p3_root | |
| fstype: btrfs | |
| # mounts | |
| - id: mnt_swap | |
| type: mount | |
| device: fs_swap | |
| path: none | |
| - id: mnt_root | |
| type: mount | |
| device: fs_root | |
| path: / | |
| late-commands: | |
| - | | |
| set -ex | |
| # getting info | |
| ROOT_DEV="$(awk '$2 ~ "^/target$" { print $1 }' /proc/mounts)" | |
| ROOT_UUID="$(blkid -o value "${ROOT_DEV}" | head -n 1)" | |
| # unmount current installed system | |
| awk '$2 ~ "^/target/" { print $2 }' /proc/mounts | xargs umount | |
| # migrate top-level subvolume to @ | |
| btrfs subvolume create /target/@ | |
| find /target -mindepth 1 -maxdepth 1 -not -name @ -exec mv '{}' /target/@/ \; | |
| # prepare sub-volume @ as the new / | |
| mkdir /mnt/@ | |
| mount -o subvol=@ "${ROOT_DEV}" /mnt/@ | |
| sed -i "/${ROOT_UUID}/s/defaults/defaults,noatime,subvol=@/" /mnt/@/etc/fstab | |
| # prepare sub-volume @home as the new /home | |
| btrfs subvolume create /target/@home | |
| echo "/dev/disk/by-uuid/${ROOT_UUID} /home btrfs defaults,noatime,subvol=@home 0 0" >> /mnt/@/etc/fstab | |
| # prepare new root for chroot | |
| mount -o bind /dev /mnt/@/dev | |
| mount -o bind /sys /mnt/@/sys | |
| mount -o bind /proc /mnt/@/proc | |
| # re-configure boot related stuff | |
| chroot /mnt/@ update-grub | |
| chroot /mnt/@ grub-install /dev/sda |
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| #cloud-config | |
| # based on | |
| # * https://ubuntu.com/server/docs/install/autoinstall-quickstart | |
| # * https://ubuntu.com/server/docs/install/autoinstall-reference | |
| # * https://curtin.readthedocs.io/en/latest/topics/storage.html | |
| # * https://gist.github.com/wpbrown/b688a934339cb4228c3faf5b527fbe5b | |
| autoinstall: | |
| version: 1 | |
| identity: | |
| hostname: autoinstalled | |
| password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0" | |
| username: foo | |
| locale: en_US.UTF-8 | |
| layout: us | |
| ssh: | |
| install-server: true | |
| # early-commands: | |
| # - "blkdiscard /dev/sda || true" | |
| storage: | |
| version: 1 | |
| swap: | |
| size: 0 | |
| config: | |
| # disks | |
| - id: ssd0 | |
| type: disk | |
| path: /dev/sda | |
| match: | |
| ssd: yes | |
| ptable: gpt | |
| grub_device: true | |
| wipe: superblock-recursive | |
| # preserve: true | |
| # partitions | |
| - id: ssd0p1_bios_grub | |
| type: partition | |
| device: ssd0 | |
| number: 1 | |
| size: 1M | |
| flag: bios_grub | |
| - id: ssd0p2_swap | |
| type: partition | |
| device: ssd0 | |
| number: 2 | |
| size: 4G | |
| flag: swap | |
| - id: ssd0p3_lvm | |
| type: partition | |
| device: ssd0 | |
| number: 3 | |
| size: 90G | |
| #preserve: true | |
| # lvm: volume groups | |
| - id: vg_ssd | |
| type: lvm_volgroup | |
| name: tia_server_ssd | |
| devices: | |
| - ssd0p3_lvm | |
| #preserve: true | |
| # lvm: logical volumes | |
| - id: lv_root | |
| type: lvm_partition | |
| volgroup: vg_ssd | |
| name: root | |
| size: 30G | |
| - id: lv_datastore | |
| type: lvm_partition | |
| volgroup: vg_ssd | |
| name: datastore | |
| size: 55G | |
| #preserve: true | |
| # formats | |
| - id: fs_swap | |
| type: format | |
| volume: ssd0p2_swap | |
| fstype: swap | |
| - id: fs_root | |
| type: format | |
| volume: lv_root | |
| fstype: btrfs | |
| - id: fs_datastore | |
| type: format | |
| volume: lv_datastore | |
| fstype: btrfs | |
| #preserve: true | |
| # mounts | |
| - id: mnt_swap | |
| type: mount | |
| device: fs_swap | |
| path: none | |
| - id: mnt_root | |
| type: mount | |
| device: fs_root | |
| path: / | |
| late-commands: | |
| - | # lv_root | |
| set -ex | |
| DEV_PATH='/dev/mapper/tia_server_ssd-root' | |
| # unmount current installed system | |
| awk '$2 ~ "^/target/" { print $2 }' /proc/mounts | xargs umount | |
| # migrate top-level sub-volume to @ | |
| btrfs subvolume create /target/@ | |
| find /target -mindepth 1 -maxdepth 1 -not -name @ -exec mv '{}' /target/@/ \; | |
| sed "s|^.* / btrfs .*$|${DEV_PATH} / btrfs defaults,noatime,subvol=@ 0 0|" -i /target/@/etc/fstab | |
| # create sub-volume @home for /home | |
| btrfs subvolume create /target/@home | |
| echo "${DEV_PATH} /home btrfs defaults,noatime,subvol=@home 0 0" >> /target/@/etc/fstab | |
| # prepare new root for chroot | |
| mkdir /mnt/lv_root | |
| mount -o subvol=@ "${DEV_PATH}" /mnt/lv_root | |
| mount -o bind /dev /mnt/lv_root/dev | |
| mount -o bind /sys /mnt/lv_root/sys | |
| mount -o bind /proc /mnt/lv_root/proc | |
| # re-configure boot related stuff | |
| chroot /mnt/lv_root update-grub | |
| chroot /mnt/lv_root grub-install /dev/sda | |
| # unmount chroot system | |
| umount -R /mnt/lv_root | |
| - | # lv_datastore | |
| set -ex | |
| DEV_PATH='/dev/mapper/tia_server_ssd-datastore' | |
| # mount top-level sub-volume | |
| mkdir /mnt/lv_datastore | |
| mount "${DEV_PATH}" /mnt/lv_datastore | |
| # enable quota | |
| btrfs quota enable /mnt/lv_datastore | |
| # initialize sub-volumes (if necessary) | |
| if [ ! -e /mnt/lv_datastore/@system ]; then | |
| btrfs subvolume create /mnt/lv_datastore/@system | |
| btrfs qgroup limit 25G /mnt/lv_datastore/@system | |
| fi | |
| if [ ! -e /mnt/lv_datastore/@private ]; then | |
| btrfs subvolume create /mnt/lv_datastore/@private | |
| btrfs qgroup limit 20G /mnt/lv_datastore/@private | |
| fi | |
| # unmount datastore | |
| umount /mnt/lv_datastore |
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| #cloud-config | |
| # based on | |
| # * https://ubuntu.com/server/docs/install/autoinstall-quickstart | |
| # * https://curtin.readthedocs.io/en/latest/topics/storage.html | |
| autoinstall: | |
| version: 1 | |
| identity: | |
| hostname: autoinstalled | |
| password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0" | |
| username: foo | |
| locale: en_US.UTF-8 | |
| layout: us | |
| ssh: | |
| install-server: true | |
| # early-commands: | |
| # - "blkdiscard /dev/sda || true" | |
| swap: | |
| size: 0 | |
| storage: | |
| version: 1 | |
| config: | |
| - id: ssd0 | |
| type: disk | |
| match: | |
| ssd: yes | |
| ptable: gpt | |
| grub_device: true | |
| wipe: superblock | |
| - id: ssd0p1 | |
| type: partition | |
| device: ssd0 | |
| number: 1 | |
| size: 1M | |
| flag: bios_grub | |
| - id: ssd0p2 | |
| type: partition | |
| device: ssd0 | |
| number: 2 | |
| size: 90G | |
| - id: vg | |
| type: lvm_volgroup | |
| name: server_tia | |
| devices: | |
| - ssd0p2 | |
| - id: lv_root | |
| type: lvm_partition | |
| volgroup: vg | |
| name: root | |
| size: 30G | |
| - id: lv_swap | |
| type: lvm_partition | |
| volgroup: vg | |
| name: swap | |
| size: 4G | |
| - id: lv_system | |
| type: lvm_partition | |
| volgroup: vg | |
| name: system | |
| size: 25G | |
| extra_options: ['-b', '4096'] | |
| - id: lv_private | |
| type: lvm_partition | |
| volgroup: vg | |
| name: private | |
| size: 20G | |
| extra_options: ['-b', '4096', '-m', '0'] | |
| - id: fs_root | |
| type: format | |
| volume: lv_root | |
| fstype: ext4 | |
| label: root | |
| - id: fs_swap | |
| type: format | |
| volume: lv_swap | |
| fstype: swap | |
| - id: fs_system | |
| type: format | |
| volume: lv_system | |
| fstype: ext4 | |
| label: system | |
| - id: fs_private | |
| type: format | |
| volume: lv_private | |
| fstype: ext4 | |
| label: private | |
| - id: mnt_root | |
| type: mount | |
| device: fs_root | |
| path: / | |
| options: 'defaults,discard,noatime,errors=remount-ro' | |
| - id: mnt_system | |
| type: mount | |
| device: fs_system | |
| path: /var/datastore/system | |
| options: 'defaults,discard,noatime,errors=remount-ro' | |
| - id: mnt_private | |
| type: mount | |
| device: fs_private | |
| path: /var/datastore/private | |
| options: 'defaults,discard,noatime,errors=remount-ro' |
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| #cloud-config | |
| autoinstall: | |
| version: 1 | |
| identity: | |
| hostname: autoinstalled | |
| password: "$6$exDY1mhS4KUYCE/2$zmn9ToZwTKLhCw.b4/b.ZRTIZM30JZ4QrOQ2aOXJ8yk96xpcCof0kxKwuX1kqLG/ygbJ1f8wxED22bTL4F46P0" | |
| username: foo | |
| storage: | |
| config: | |
| ### drive | |
| - id: disk0 | |
| type: disk | |
| ptable: gpt | |
| grub_device: true | |
| preserve: false | |
| wipe: superblock | |
| ### partitions | |
| - id: efi_partition | |
| type: partition | |
| size: 512MB | |
| device: disk0 | |
| flag: boot | |
| grub_device: true | |
| preserve: false | |
| - id: swap_partition | |
| type: partition | |
| size: 8GB | |
| device: disk0 | |
| flag: swap | |
| preserve: false | |
| - id: root_partition | |
| type: partition | |
| size: -1 | |
| device: disk0 | |
| preserve: false | |
| ### format and mount efi partition | |
| - id: efi_format | |
| type: format | |
| fstype: fat32 | |
| volume: efi_partition | |
| preserve: false | |
| - id: efi_mount | |
| type: mount | |
| path: /boot/efi | |
| device: efi_format | |
| ### format and mount swap partition | |
| - id: swap_format | |
| type: format | |
| fstype: swap | |
| volume: swap_partition | |
| preserve: false | |
| - id: swap_mount | |
| path: none | |
| type: mount | |
| device: swap_format | |
| ### format and mount root partition | |
| - id: root_format | |
| type: format | |
| fstype: btrfs | |
| volume: root_partition | |
| preserve: false | |
| - id: root_mount | |
| type: mount | |
| path: / | |
| device: root_format | |
| late-commands: | |
| - | | |
| set -ex | |
| EFI_DEV=$(awk '$2 == "/target/boot/efi" { print $1 }' /proc/mounts) | |
| ROOT_DEV=$(awk '$2 ~ "^/target$" { print $1 }' /proc/mounts) | |
| ROOT_UUID=$(blkid -o value $ROOT_DEV | head -n 1) | |
| awk '$2 ~ "^/target/" { print $2 }' /proc/mounts | xargs umount | |
| btrfs subvolume snapshot /target /target/rootfs | |
| mkdir /mnt/rootfs | |
| mount -o subvol=rootfs $ROOT_DEV /mnt/rootfs | |
| mount $EFI_DEV /mnt/rootfs/boot/efi | |
| mount -o bind /dev /mnt/rootfs/dev | |
| mount -o bind /sys /mnt/rootfs/sys | |
| mount -o bind /proc /mnt/rootfs/proc | |
| sed -i "/$ROOT_UUID/s/defaults/defaults,noatime,subvol=rootfs/" /mnt/rootfs/etc/fstab | |
| chroot /mnt/rootfs update-grub | |
| chroot /mnt/rootfs grub-install --efi-directory=/boot/efi | |
| find /target -mindepth 1 -maxdepth 1 -not -name rootfs -exec rm -rf '{}' \; | |
| btrfs subvolume create /target/home | |
| echo "/dev/disk/by-uuid/$ROOT_UUID /home btrfs defaults,noatime,subvol=home 0 0" >> /mnt/rootfs/etc/fstab | |
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