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authorV3n3RiX <venerix@koprulu.sector>2024-06-30 08:00:51 +0100
committerV3n3RiX <venerix@koprulu.sector>2024-06-30 08:00:51 +0100
commitd5ee59790ee8298b8599b0aa0fa21a98b972a44d (patch)
tree2cc4393cdcfae28879cee110e5975f6e6b798f91 /eclass/mount-boot-utils.eclass
parentd855918b46ba8714cf1320fe63b55fd0ed1748a6 (diff)
gentoo auto-resync : 30:06:2024 - 08:00:50
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+# Copyright 1999-2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+# @ECLASS: mount-boot-utils.eclass
+# @MAINTAINER:
+# base-system@gentoo.org
+# @SUPPORTED_EAPIS: 6 7 8
+# @BLURB: functions for packages that install files into /boot or the ESP
+# @DESCRIPTION:
+# This eclass is really only useful for bootloaders and kernel installation.
+#
+# If the live system has a separate /boot partition or ESP configured, then this
+# function tries to ensure that it's mounted in rw mode, exiting with an error
+# if it can't. It does nothing if /boot and ESP isn't a separate partition.
+#
+# This eclass provides the functions used by mount-boot.eclass in an "inherit-
+# safe" way. This allows these functions to be used in other eclasses cleanly.
+
+case ${EAPI} in
+ 7|8) ;;
+ *) die "${ECLASS}: EAPI ${EAPI:-0} not supported" ;;
+esac
+
+# @FUNCTION: mount-boot_is_disabled
+# @INTERNAL
+# @DESCRIPTION:
+# Detect whether the current environment/build settings are such that we do not
+# want to mess with any mounts.
+mount-boot_is_disabled() {
+ # Since this eclass only deals with /boot, skip things when EROOT is active.
+ if [[ -n ${EROOT} ]]; then
+ return 0
+ fi
+
+ # If we're only building a package, then there's no need to check things.
+ if [[ ${MERGE_TYPE} == buildonly ]]; then
+ return 0
+ fi
+
+ # The user wants us to leave things be.
+ if [[ -n ${DONT_MOUNT_BOOT} ]]; then
+ return 0
+ fi
+
+ # OK, we want to handle things ourselves.
+ return 1
+}
+
+# @FUNCTION: mount-boot_check_status
+# @INTERNAL
+# @DESCRIPTION:
+# Check if /boot and ESP is sane, i.e., mounted as read-write if on a separate
+# partition. Die if conditions are not fulfilled. If nonfatal is used,
+# the function will return a non-zero status instead.
+mount-boot_check_status() {
+ # Get out fast if possible.
+ mount-boot_is_disabled && return 0
+
+ local partition=
+ local part_is_not_mounted=
+ local part_is_read_only=
+ local candidates=( /boot )
+
+ # If system is booted with UEFI, check for ESP as well
+ if [[ -d /sys/firmware/efi ]]; then
+ # Use same candidates for ESP as installkernel and eclean-kernel
+ candidates+=( /efi /boot/efi /boot/EFI )
+ fi
+
+ for partition in ${candidates[@]}; do
+ # note that /dev/BOOT is in the Gentoo default /etc/fstab file
+ local fstabstate=$(awk "!/^[[:blank:]]*#|^\/dev\/BOOT/ && \$2 == \"${partition}\" \
+ { print 1; exit }" /etc/fstab || die "awk failed")
+
+ if [[ -z ${fstabstate} ]]; then
+ einfo "Assuming you do not have a separate ${partition} partition."
+ else
+ local procstate=$(awk "\$2 == \"${partition}\" { split(\$4, a, \",\"); \
+ for (i in a) if (a[i] ~ /^r[ow]\$/) { print a[i]; break }; exit }" \
+ /proc/mounts || die "awk failed")
+
+ if [[ -z ${procstate} ]]; then
+ eerror "Your ${partition} partition is not mounted"
+ eerror "Please mount it and retry."
+ die -n "${partition} not mounted"
+ part_is_not_mounted=1
+ else
+ if [[ ${procstate} == ro ]]; then
+ eerror "Your ${partition} partition, was detected as being mounted," \
+ "but is mounted read-only."
+ eerror "Please remount it as read-write and retry."
+ die -n "${partition} mounted read-only"
+ part_is_read_only=1
+ else
+ einfo "Your ${partition} partition was detected as being mounted."
+ einfo "Files will be installed there for ${PN} to function correctly."
+ fi
+ fi
+ fi
+ done
+
+ if [[ -n ${part_is_not_mounted} ]]; then
+ return 1
+ elif [[ -n ${part_is_read_only} ]]; then
+ return 2
+ else
+ return 0
+ fi
+}