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|
#!/bin/bash
if [ "$(id -u)" != 0 ]
then
exec sudo -- "$0" "$@"
exit 1
fi
loudly()
{
(set -x
"$@")
}
up_to_date()
{
local found system_initrd
system_initrd=${1%$OUTPUT_TAG}
[ -e "$1" ] || return
found=$(find "$samizdat_initramfs_conf_dir" \
"$samizdat_initrd_files_dir" \
"$system_initrd" \
-type f -newer "$1" -print -quit) || return
[ -z "$found" ]
}
f()
{
OUTPUT=/boot/initrd.img-$1${OUTPUT_TAG}
([ -z "$OUTPUT_TAG" ] || ! up_to_date "$OUTPUT") &&
/usr/sbin/mkinitramfs \
-d "$samizdat_initramfs_conf_dir" \
-o "$OUTPUT" \
-k "$1" || return
loudly ln -sf "${OUTPUT#/}" /initrd.img
}
. samizdat-paths.sh
OUTPUT_TAG=.samizdat
while [ $# -gt 0 ]
do
case "$1" in
-s|--system) OUTPUT_TAG=; shift; continue;;
--) shift; break;;
-?) exit 1;;
*) break;;
esac
done
if [ "$1" ]
then
k=/boot/vmlinuz-$1
if ! [ -e "$k" ]
then
printf 'Error: No such file: %s\n' "$k" >&2
fi
f "$1" || exit
ln -sf "vmlinuz-$1" /vmlinuz
elif [ -L /vmlinuz ]
then
l=$(readlink /vmlinuz)
v=${l#boot/vmlinuz-}
[ -e "/boot/vmlinuz-$v" ] || exit
f "$v"
else
printf 'Error: Could not determine kernel version. Create /vmlinuz or specify a version.' >&2
exit 1
fi
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