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Implement initramfs using dracut

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This commit is contained in:
Dennis ten Hoove 2023-09-14 19:10:20 +02:00
parent a553d66466
commit 6988923a34
1 changed files with 21 additions and 36 deletions
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57
arkanium-deploy
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@ -24,7 +24,6 @@ fi
## Set common variables
#
declare -r arkanium_dir='/arkanium/'
declare -r arkanium_deployment_dir="$arkanium_dir/deployments"
## Load config file
#
@ -38,10 +37,14 @@ cleanup_and_quit () {
# If any paramters are passed we will assume it to be an error
[[ -n $1 ]] && printf "\e[1;31m<#>\e[0m $*\e[0m\n" >&2
# Remove temporary btrfs volumes
# ONLY IF CUSTOM DEFINED?
#[[ ! -n $arkanium_NO_CLEANUP || ! -n $subvol_created ]] &&
# btrfs subvolume delete $workdir 2> /dev/null
# Remove the subvolume we were working on
# TODO: Make this a generic function and share with the removal of old images?
if [[ -n ${data[0]} ]]; then
btrfs property set -f -ts $arkanium_dir/deployments/${data[0]}/rootfs ro false
rm -rf $arkanium_dir/deployments/${data[0]}
rm -rf /boot/arkanium/${data[0]}
rm /boot/loader/entries/${data[0]}.conf
fi
# Quit program if argument provided to function
[[ -n $1 ]] && exit 1
@ -59,7 +62,7 @@ cleanup_and_quit () {
exit 1
# Check if all dependencies are installed, quit if not
for prog in btrfs wget; do
for prog in btrfs wget dracut bootctl; do
if ! command -v $prog > /dev/null; then
printf "\e[1;31m<#>\e[0m\e[1m Failed to locate $prog, ensure it is installed\e[0m\n"
exit 1
@ -209,7 +212,7 @@ deploy () {
declare curl_data=$(curl -sf "${repo_url}/${deploy_target}/database" | grep $3)
fi
# Split latest_version at the delimiter, creating an array with data.1=package ver, data.2=compression method, data.3=sha1 hash
# Split latest_version at the delimiter, creating an array with data.0=package ver, data.1=compression method, data.2=sha1 hash
readarray -d : -t data <<< "$curl_data"
# A carriage feed is inserted for some reason, lets remove it
data[2]=${data[2]//[$'\t\r\n']}
@ -236,7 +239,7 @@ deploy () {
cleanup_and_quit "Checksum does not match repo file, got $chksum\e[0m\n"
# Create directory using unique deployment name
mkdir -pv $arkanium_dir/deployments/${data[0]} || cleanup_and_quit 'Failed to create deployment directory'
mkdir -pv $(readlink -m $arkanium_dir/deployments/${data[0]}) || cleanup_and_quit 'Failed to create deployment directory'
# Extract the root image if not yet extracted
printf "\e[1;34m-->\e[0m\e[1m Writing root\e[0m\n"
@ -302,30 +305,12 @@ deploy () {
rm $(readlink -m $arkanium_dir/cache/${data[0]}-var.img)
# Install kernel and generate initramfs
# TODO: Hard coding for now, reasonable chance have to redo this later
printf "\e[1;34m-->\e[0m\e[1m Installing kernel\e[0m\n"
install -Dm644 $(readlink -m $arkanium_dir/deployments/${data[0]}/rootfs/usr/lib/modules/*/vmlinuz) /boot/arkanium/${data[0]}/vmlinuz ||
cleanup_and_quit 'Failed to copy kernel image'
# Create an mkinitcpio preset if it does not exist yet
if [[ ! -e $arkanium_dir/deployments/${data[0]}/rootfs/etc/mkinitcpio.d/${data[0]}.preset ]]; then
printf "\e[1;34m-->\e[0m\e[1m Generating initramfs using mkinitcpio\e[0m\n"
cat <<- END > $arkanium_dir/deployments/${data[0]}/rootfs/etc/mkinitcpio.d/${data[0]}.preset
ALL_config="$(readlink -m $arkanium_dir/deployments/${data[0]}/rootfs/etc/mkinitcpio.conf)"
ALL_kver="$(readlink -m /boot/arkanium/${data[0]}/vmlinuz)"
PRESETS=('default')
#default_config="$(readlink -m $arkanium_dir/deployments/${data[0]}/rootfs/etc/mkinitcpio.conf)"
default_image="$(readlink -m /boot/arkanium/${data[0]}/initramfs-linux.img)"
#default_options=""
END
fi
# TODO: Add dracut support
mkinitcpio --preset $(readlink -m $arkanium_dir/deployments/${data[0]}/rootfs/etc/mkinitcpio.d/${data[0]}.preset) ||
cleanup_and_quit 'Failed to generate initramfs'
printf "\e[1;34m-->\e[0m\e[1m Generating initramfs\e[0m\n"
mkdir -pv $(readlink -m /boot/arkanium/${data[0]})
dracut -k $(cd /arkanium/deployments/${data[0]}/rootfs/usr/lib/modules/*; pwd) \
--kernel-image /boot/arkanium/${data[0]}/vmlinuz \
--force \
/boot/arkanium/${data[0]}/initramfs-linux.img || cleanup_and_quit 'Failed to generate initramfs'
# Add to database
# TODO: If this step is never reached ensure cleanup, maybe write a "busy file" somewhere
@ -333,13 +318,13 @@ deploy () {
printf "${data[0]}\n$(cat $(readlink -m $arkanium_dir/tracker | head -$deploy_keep))" > $arkanium_dir/tracker
# Deploy bootloader configuration
printf "\e[1;34m-->\e[0m\e[1m Adding bootloader configuration\e[0m\n"
printf "\e[1;34m-->\e[0m\e[1m Adding bootloader entry\e[0m\n"
sed "s/%target%/${data[0]}/" $arkanium_dir/templates/systemd-boot > /boot/loader/entries/${data[0]}.conf
printf "\e[1;34m-->\e[0m\e[1m Define new bootloader entry as default in EFI variables\e[0m\n"
printf "\e[1;34m-->\e[0m\e[1m Setting new bootloader entry as default\e[0m\n"
# Configuring it with a oneshot for now, for testing
#bootctl set-default ${data[0]}.conf || cleanup_and_exit "Failed to set default bootloader entry"
bootctl set-oneshot ${data[0]}.conf || cleanup_and_exit "Failed to set default bootloader entry"
#bootctl set-default ${data[0]}.conf || cleanup_and_quit "Failed to set default bootloader entry"
bootctl set-oneshot ${data[0]}.conf || cleanup_and_quit "Failed to set default bootloader entry"
# Remove entries outside of keep
declare -r remove_deployments="$(cat $arkanium_dir/tracker | head -$deploy_keep | grep -rvf - $(readlink -m $arkanium_dir/tracker))"