slackware-current/source/a/mkinitrd/setup.01.mkinitrd

#!/bin/sh
#BLURB="Generate /boot/initrd.gz for the generic kernel"

# Start with the version for vmlinuz-generic-smp:
KERNEL_SYMLINK="boot/vmlinuz-generic-smp"
if [ -L $KERNEL_SYMLINK ]; then
  KERNEL_VERSION_LIST=$(strings $KERNEL_SYMLINK | grep '([^ ]*@[^ ]*) #' | cut -f1 -d' ')
fi

# Next add the version for vmlinuz-generic:
KERNEL_SYMLINK="boot/vmlinuz-generic"
if [ -L $KERNEL_SYMLINK ]; then
  if [ -z $KERNEL_VERSION_LIST ]; then
    KERNEL_VERSION_LIST=$(strings $KERNEL_SYMLINK | grep '([^ ]*@[^ ]*) #' | cut -f1 -d' ')
  else
    KERNEL_VERSION_LIST="$KERNEL_VERSION_LIST:$(strings $KERNEL_SYMLINK | grep '([^ ]*@[^ ]*) #' | cut -f1 -d' ')"
  fi
fi

# Proper plural(s):
if echo $KERNEL_VERSION_LIST | grep -q : ; then
  KERNEL=kernels
else
  KERNEL=kernel
fi

# Generate the initrd:
if [ ! -z $KERNEL_VERSION_LIST ]; then
  dialog --title "GENERATING INITIAL RAMDISK" --infobox \
  "Generating an initial ramdisk for use with the $KERNEL_VERSION_LIST generic \
${KERNEL}. The initial ramdisk contains kernel modules needed to mount the \
root partition, and must be regenerated whenever the kernel is updated. To \
regenerate the initrd, select this setup script from within pkgtool, or run \
'geninitrd' which will produce an initial ramdisk (/boot/initrd.gz) for the \
installed generic ${KERNEL}." 9 68
  chroot . /usr/share/mkinitrd/mkinitrd_command_generator.sh -k $KERNEL_VERSION_LIST | chroot . bash 1> /dev/null 2> /dev/null
fi