src/mkinitramfs-samizdat


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#!/bin/sh

if [ "$(id -u)" != 0 ]
then
    exec sudo -- "$0" "$@"
    exit 1
fi

f()
{
    /usr/sbin/mkinitramfs \
         -d /usr/local/lib/samizdat-rhizome/initramfs-tools/ \
         -o "/boot/initrd.img-$1.samizdat" \
         -k "$1" || return
    ln -sf "initrd.img-$1.samizdat" /initrd.img
}

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