dc4e6b964c
Way fast to compress/decompress and produce smaller archives (compared to deflate/gzip in general), but only supported in kernels 5.9+. Notice we fallback to the default "--compress=gzip" in case kernel does not support zstd. Special thanks to Clayton (craftyguy) for the kernel version test. Signed-off-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
44 lines
1.5 KiB
Bash
44 lines
1.5 KiB
Bash
# Functions to deal with dracut specifics, both for building
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# the initramfs for dracut users, but also with regards to
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# installing dracut specific hooks/scripts.
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#
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# IMPORTANT: it is assumed that kdump configuration was loaded
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# before running any of these functions!
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#
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create_initramfs_dracut() {
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rm -f "${MOUNT_FOLDER}/kdump-initrd-$1.img"
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COMPRESS="--compress=gzip"
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MAJOR="$(echo "$1" | cut -f1 -d\.)"
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MINOR="$(echo "$1" | cut -f2 -d\.)"
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# Zstd is FAST, but only supported in kernels 5.9+.
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if [ "${MAJOR}" -gt 5 ] || ([ "${MAJOR}" -eq 5 ] && [ "${MINOR}" -ge 9 ]); then
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COMPRESS="--compress=zstd"
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fi
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DRACUT_NO_XATTR=1 dracut "${COMPRESS}" --no-early-microcode --host-only -q -m\
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"bash systemd systemd-initrd systemd-sysusers modsign dbus-daemon kdump dbus udev-rules dracut-systemd base fs-lib shutdown"\
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--kver "$1" "${MOUNT_FOLDER}/kdump-initrd-$1.img"
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if [ -s "${MOUNT_FOLDER}/kdump-initrd-$1.img" ]; then
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logger "kdump: created dracut minimal initramfs"
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fi
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}
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dracut_installation() {
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HOOKS_DIR="/usr/lib/kdump/dracut/"
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DRACUT_DIR="$(pkg-config --variable=dracutmodulesdir dracut 2>/dev/null)"
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if [ -z "${DRACUT_DIR}" ]; then
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DRACUT_DIR="/usr/lib/dracut/modules.d/"
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fi
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if [ ! -d "${DRACUT_DIR}"/55kdump/ ]; then
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install -D -m0755 "${HOOKS_DIR}"/kdump-collect.sh "${DRACUT_DIR}"/55kdump/kdump-collect.sh
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install -D -m0755 "${HOOKS_DIR}"/module-setup.sh "${DRACUT_DIR}"/55kdump/module-setup.sh
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logger "kdump: dracut hooks/scripts installed"
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fi
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}
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