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# Copyright 2019-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
inherit linux-info
DESCRIPTION="Gentoo fork of installkernel script from debianutils"
HOMEPAGE="
https://github.com/projg2/installkernel-gentoo
https://wiki.gentoo.org/wiki/Installkernel
"
SRC_URI="https://github.com/projg2/installkernel-gentoo/archive/v${PV}.tar.gz
-> ${P}.tar.gz"
S="${WORKDIR}/${PN}-gentoo-${PV}"
LICENSE="GPL-2+"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x86-linux"
IUSE="dracut efistub grub refind systemd systemd-boot uki ukify"
REQUIRED_USE="
efistub? ( systemd )
systemd-boot? ( systemd )
ukify? ( uki )
?? ( efistub grub refind systemd-boot )
"
# efistub requires systemd's kernel-install because:
# - We need support for removal to clean-up the created entry
# - We need to know the location of the ESP
# - kernel-bootcfg at some point calls bootctl (to find ESP)
RDEPEND="
!<=sys-kernel/installkernel-systemd-3
dracut? (
>=sys-kernel/dracut-060_pre20240104-r4
uki? (
|| (
sys-apps/systemd[boot(-)]
sys-apps/systemd-utils[boot(-)]
)
)
)
efistub? (
>=app-emulation/virt-firmware-24.2_p20240315-r2
|| (
sys-apps/systemd[boot(-)]
sys-apps/systemd-utils[boot(-)]
)
)
grub? ( sys-boot/grub )
refind? ( sys-boot/refind )
systemd? (
|| (
sys-apps/systemd[kernel-install(-)]
sys-apps/systemd-utils[kernel-install(-)]
)
)
systemd-boot? (
|| (
sys-apps/systemd[boot(-)]
sys-apps/systemd-utils[boot(-)]
)
)
ukify? (
|| (
sys-apps/systemd[boot(-),ukify(-)]
sys-apps/systemd-utils[boot(-),ukify(-)]
)
)
!=sys-apps/systemd-255.2-r1
!=sys-apps/systemd-255.2-r0
!~sys-apps/systemd-255.1
!~sys-apps/systemd-255.0
!=sys-apps/systemd-254.8-r0
!=sys-apps/systemd-254.7-r0
!~sys-apps/systemd-254.6
!<=sys-apps/systemd-254.5-r1
" # Block against systemd that still installs dummy install.conf
pkg_setup() {
use efistub && CONFIG_CHECK="EFI_STUB" linux-info_pkg_setup
}
src_install() {
keepdir /etc/kernel/postinst.d
keepdir /etc/kernel/preinst.d
exeinto /usr/lib/kernel/preinst.d
use dracut && doexe hooks/50-dracut.install
use ukify && doexe hooks/60-ukify.install
exeinto /usr/lib/kernel/postinst.d
use uki && doexe hooks/90-uki-copy.install
use grub && doexe hooks/91-grub-mkconfig.install
use refind && doexe hooks/95-refind-copy-icon.install
exeinto /usr/lib/kernel/install.d
doexe hooks/systemd/00-00machineid-directory.install
doexe hooks/systemd/10-copy-prebuilt.install
doexe hooks/systemd/90-compat.install
use efistub && doexe hooks/systemd/95-efistub-kernel-bootcfg.install
use grub && doexe hooks/systemd/91-grub-mkconfig.install
use refind && doexe hooks/systemd/95-refind-copy-icon.install
if use systemd; then
sed -e 's/${SYSTEMD_KERNEL_INSTALL:=0}/${SYSTEMD_KERNEL_INSTALL:=1}/g' -i installkernel ||
die "enabling systemd's kernel-install failed"
fi
# set some default config using the flags we have anyway
touch "${T}/install.conf" || die
echo "# This file is managed by ${CATEGORY}/${PN}" >> "${T}/install.conf" || die
if use uki; then
echo "layout=uki" >> "${T}/install.conf" || die
elif use efistub; then
echo "layout=efistub" >> "${T}/install.conf" || die
elif use grub; then
echo "layout=grub" >> "${T}/install.conf" || die
elif use systemd-boot; then
echo "layout=bls" >> "${T}/install.conf" || die
else
echo "layout=compat" >> "${T}/install.conf" || die
fi
if use dracut; then
echo "initrd_generator=dracut" >> "${T}/install.conf" || die
if ! use ukify; then
if use uki; then
echo "uki_generator=dracut" >> "${T}/install.conf" || die
else
echo "uki_generator=none" >> "${T}/install.conf" || die
fi
fi
else
echo "initrd_generator=none" >> "${T}/install.conf" || die
fi
if use ukify; then
echo "uki_generator=ukify" >> "${T}/install.conf" || die
else
if ! use dracut; then
echo "uki_generator=none" >> "${T}/install.conf" || die
fi
fi
insinto /usr/lib/kernel
doins "${T}/install.conf"
into /
dosbin installkernel
doman installkernel.8
einstalldocs
}
pkg_postinst() {
# show only when upgrading to 14+
if [[ -n "${REPLACING_VERSIONS}" ]] && ver_test "${REPLACING_VERSIONS}" -lt 14; then
elog "Version 14 and up of ${PN} effectively merges"
elog "${PN}-gentoo and ${PN}-systemd."
elog "Switching between the traditional installkernel and systemd's"
elog "kernel-install is controlled with the systemd USE flag or the"
elog "SYSTEMD_KERNEL_INSTALL environment variable."
elog
elog "See the installkernel wiki page[1] for more details."
elog
elog "[1]: https://wiki.gentoo.org/wiki/Installkernel"
elog
fi
# show only on first install of version 20+
if [[ -z "${REPLACING_VERSIONS}" ]] || ver_test "${REPLACING_VERSIONS}" -lt 20; then
if has_version "sys-boot/grub" && ! use grub; then
elog "sys-boot/grub is installed but the grub USE flag is not enabled."
elog "Users may want to enable this flag to automatically update the"
elog "bootloader configuration on each kernel install."
fi
if ( has_version "sys-apps/systemd[boot]" ||
has_version "sys-apps/systemd-utils[boot]" ) &&
! use systemd-boot; then
elog "systemd-boot is installed but the systemd-boot USE flag"
elog "is not enabled. Users should enable this flag to install kernels"
elog "in a layout that systemd-boot understands and to automatically"
elog "update systemd-boot's configuration on each kernel install."
fi
fi
if use efistub && ! has_version "${CATEGORY}/${PN}[efistub]"; then
ewarn "Automated EFI Stub booting is highly experimental. UEFI implementations"
ewarn "often differ between vendors and as a result EFI stub booting is not"
ewarn "guaranteed to work for all UEFI systems. Ensure an alternative method"
ewarn "of booting the system is available before rebooting."
fi
}
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