hologram-uefi-bootloader.pkg.toml

[package]
name        = "hologram-uefi-bootloader"
version     = "1.2.0"
description = "hologram: UEFI bootloader using systemd-boot"

requires    = [
    "systemd",       # for bootctl
    "util-linux",    # for blkid
    "device-mapper", # for dmsetup
]

[[action]]
on     = "setup"
script = '''
    echo 'If this package is installed for the first time, run `bootctl install`.'
'''

[[file]]
path    = "/boot/loader/loader.conf"
content = """
    default arch
    timeout 1
"""

[[file]]
path    = "/boot/loader/entries/arch.conf"
content = """
    title     Arch Linux
    linux     /vmlinuz-linux
    initrd    /initramfs-linux.img
    options   root=PARTUUID=${PARTUUID} rw
"""

# This interpolation happens very late because other holograms might want to
# use the "${PARTUUID}" placeholder when rewriting the bootloader entry.
# See e.g. hologram-uefi-bootloader-with-luks.
[[file]]
path    = "/usr/share/holo/files/99-root-partuuid/boot/loader/entries/arch.conf.holoscript"
mode    = "0755"
content = '''
    #!/bin/bash

    ROOTDEVICE="$(mount | grep 'on / ' | cut -d' ' -f1)"
    if [[ "$ROOTDEVICE" == /dev/mapper/* ]]; then
        # root FS is encrypted -- find underlying block device
        ROOTDEVICE="/dev/$(dmsetup deps -o blkdevname "$ROOTDEVICE" | cut -d'(' -f2 | cut -d')' -f1)"
    fi
    if [ "$ROOTDEVICE" == "" ]; then
        echo "ERROR: cannot find root filesystem" >&2
        exit 1
    fi

    PARTUUID="$(blkid -s PARTUUID -o value "$ROOTDEVICE")"
    if [ "$PARTUUID" == "" ]; then
        echo "ERROR: cannot find partition UUID" >&2
        exit 1
    fi

    sed 's/\${PARTUUID}/'"$PARTUUID"'/g'
'''