73 lines
2.2 KiB
Bash
Executable File
73 lines
2.2 KiB
Bash
Executable File
#!/bin/bash
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COMMAND="$1"
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KERNEL_VERSION="$2"
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BOOT_DIR_ABS="$3"
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KERNEL_IMAGE="$4"
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# Read the optional config file for automation
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[[ -f /etc/kernel-install-for-dracut.conf ]] && source /etc/kernel-install-for-dracut.conf
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# Do nothing if the user has elected to omit the fallback initrd
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[[ ${NO_DRACUT_FALLBACK} == "true" ]] && exit 0
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# If KERNEL_INSTALL_MACHINE_ID is defined but empty, BOOT_DIR_ABS is a fake directory.
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# So, let's skip to create initrd.
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if ! [[ ${KERNEL_INSTALL_MACHINE_ID-x} ]]; then
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exit 0
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fi
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if [[ -d "$BOOT_DIR_ABS" ]]; then
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INITRD="initrd-fallback"
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else
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BOOT_DIR_ABS="/boot"
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INITRD="initramfs-${KERNEL_VERSION}.img"
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fi
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ret=0
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case "$COMMAND" in
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add)
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INITRD_IMAGE_PREGENERATED=${KERNEL_IMAGE%/*}/initrd-fallback
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if [[ -f ${INITRD_IMAGE_PREGENERATED} ]]; then
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# we found an initrd at the same place as the kernel
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# use this and don't generate a new one
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cp --reflink=auto "$INITRD_IMAGE_PREGENERATED" "$BOOT_DIR_ABS/$INITRD" \
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&& chown root:root "$BOOT_DIR_ABS/$INITRD" \
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&& chmod 0600 "$BOOT_DIR_ABS/$INITRD" \
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&& exit 0
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fi
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if [[ -f /etc/kernel/cmdline ]]; then
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read -r -d '' -a BOOT_OPTIONS < /etc/kernel/cmdline
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elif [[ -f /usr/lib/kernel/cmdline ]]; then
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read -r -d '' -a BOOT_OPTIONS < /usr/lib/kernel/cmdline
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else
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declare -a BOOT_OPTIONS
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read -r -d '' -a line < /proc/cmdline
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for i in "${line[@]}"; do
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[[ "${i#initrd=*}" != "$i" ]] && continue
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BOOT_OPTIONS+=("$i")
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done
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fi
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unset noimageifnotneeded
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for ((i=0; i < "${#BOOT_OPTIONS[@]}"; i++)); do
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# shellcheck disable=SC1001
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if [[ ${BOOT_OPTIONS[$i]} == root\=PARTUUID\=* ]]; then
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noimageifnotneeded="yes"
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break
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fi
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done
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[[ ${DRACUT_QUIET} == "true" ]] && DRACUT_EXTRA_PARAMS=" --quiet"
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dracut --no-hostonly --force${DRACUT_EXTRA_PARAMS} ${noimageifnotneeded:+--noimageifnotneeded} "$BOOT_DIR_ABS/$INITRD" "$KERNEL_VERSION"
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ret=$?
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;;
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remove)
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rm -f -- "$BOOT_DIR_ABS/$INITRD"
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ret=$?
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;;
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esac
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exit $ret
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