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#!/usr/bin/sh # Fallback in case nothing else works. Look for vmlinu[xz] file in root and # /boot, see if there is a matching initrd, and wing it. . /usr/share/os-prober/common.sh set -e partition="$1" bootpart="$2" mpoint="$3" type="$4" mappedpartition=$(mapdevfs "$partition" 2>/dev/null) || mappedpartition="$partition" kernparams="root=$mappedpartition" # In case there is $mpoint/etc/default/grub, source it and take into account # relevant command line variables. This function must be run inside a subshell # otherwise grub default variable may be overriden get_cmdline_linux_params() { local mpoint_sysconfdir="$mpoint/etc" if test -f ${mpoint_sysconfdir}/default/grub ; then unset GRUB_CMDLINE_LINUX GRUB_CMDLINE_LINUX_DEFAULT . ${mpoint_sysconfdir}/default/grub echo "${GRUB_CMDLINE_LINUX} ${GRUB_CMDLINE_LINUX_DEFAULT}" fi } kernparams="$(echo $kernparams $(get_cmdline_linux_params) | sed 's/[[:space:]]\+$//')" exitcode=1 for kernpat in /vmlinuz /vmlinux /boot/vmlinuz /boot/vmlinux "/boot/vmlinuz*" \ "/boot/vmlinux*" "/vmlinuz*" "/vmlinux*" "/kernel-*" "/boot/kernel-*"; do if echo "$kernpat" | grep -q boot/; then kernbootpart="$bootpart" else kernbootpart="$partition" fi for kernfile in $(eval ls "$mpoint$kernpat" 2>/dev/null); do kernbasefile=$(echo "$kernfile" | sed "s!^$mpoint!!") if [ -f "$kernfile" ] && [ ! -L "$kernfile" ]; then initrdname=$(echo "$kernfile" | sed "s/vmlinu[zx]/initrd\*/") # Yellow Dog Linux appends .img to it. initrdname1="${initrdname}.img" # Arch Linux names its initrds weirdly. We take # some care here to avoid false positives on other # systems, since kernel.img could conceivably be a # kernel itself. initrdname2=$(echo "$kernfile" | sed -n 's/vmlinu[zx]\([0-9][0-9]*\)/kernel\1/p' | sed 's/$/.img/') # Dracut initramfses are named differently again. initrdname3=$(echo "$kernfile" | sed "s/vmlinu[zx]/initramfs\*/" | sed 's/$/.img/') # And Gentoo's also initrdname4=$(echo "$kernfile" | sed "s/kernel\|vmlinu[zx]/initramfs\*/") foundinitrd=0 for initrd in $(eval ls "$initrdname" "$initrdname1" "$initrdname2" "$initrdname3" "$initrdname4" 2>/dev/null); do if [ "$initrd" != "$kernfile" ] && [ -f "$initrd" ] && [ ! -L "$initrd" ]; then initrd=$(echo "$initrd" | sed "s!^$mpoint!!") result "$partition:$kernbootpart::$kernbasefile:$initrd:$kernparams" exitcode=0 foundinitrd=1 fi done if [ "$foundinitrd" = 0 ]; then result "$partition:$kernbootpart::$kernbasefile::root=$mappedpartition" exitcode=0 fi fi done done exit "$exitcode"
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