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perl-Bootloader/bootloader_entry

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#!/bin/bash
#
# This script represents an interface between the postinstall and postuninstall
# scripts of kernel rpms and the update-bootloader script.
#
# Interface:
# ----------
# /usr/lib/bootloader/bootloader_entry [add|remove] <kernel-flavor> <kernel-release> <image-name> <initrd-name>
#
# Call Semantics:
# ---------------
# [ -x $cmd ] && $cmd <parameters>
#
#
# Author: aosthof@suse.de
#
# Print how to use this script correctly
function usage()
{
echo "Unknown or missing parameter."
echo "Usage: $0 [add|remove] <kernel-flavor> <kernel-release> <image-name> <initrd-name> [force-default]"
echo
echo "The old interface with 4 parameters is still supported, but deprecated."
echo "This interface will be dropped in the near future."
echo "Usage: $0 [add|remove] <kernel-package-name> <image-name> <initrd-name>"
exit 1
}
# Get all command line arguments
function getargs()
{
# old interface with 4 parameters
if [ $# -eq 4 ] ; then
action=${1} # contains the action to be executed, e.g. "add" or "remove"
flavor=${2#*-} # contains the kernel-flavor, e.g. "default" or "xen"
flavor=${flavor%%-*}
release=${2#*-*-} # contains the kernel-release, e.g. "2.6.18-4-default"
release=${release%.*.*}
release="${release}-${flavor}"
image=${3} # contains the full image name, e.g. "vmlinuz-2.6.18-4-default"
initrd=${4} # contains the full initrd name, e.g. "initrd-2.6.18-4-default"
# new interface with 5 or 6 parameters, depends whether option
# "force-default" is used or not
else
action=${1} # contains the action to be executed, e.g. "add" or "remove"
flavor=${2} # contains the kernel-flavor, e.g. "default" or "xen"
release=${3} # contains the kernel-release, e.g. "2.6.18-4-default"
image=${4} # contains the full image name, e.g. "vmlinuz-2.6.18-4-default"
initrd=${5} # contains the full initrd name, e.g. "initrd-2.6.18-4-default"
forcedefault=${6} # contains action which forces corresponding boot entry beeing the
# default boot entry, enabled by given parameter "force-default"
fi
}
# Wrapper for the update-bootloader function
function update_bootloader()
{
echo "bootloader_entry: This is (wrapper) function update_bootloader" >> $logname
[ -x /sbin/update-bootloader ] || return 0
# call update-bootloader and also append stderr to the log file
/sbin/update-bootloader "$@" 1>>$logname 2>&1
}
##############################
# Add a new bootloader entry #
##############################
function add_entry()
{
echo "bootloader_entry: This is function add_entry()" >> $logname
# If running in instsys, write command(s) to be executed in a file
# which will be executed by yast2-bootloader after installation of
# packages is finished.
#
# This is to prevent inconsistencies triggered by libata migration.
if [ "$YAST_IS_RUNNING" == instsys -a "$DELAYED_RUN_UPDATE_BOOTLOADER" != yes ]; then
cat - >> $delayed_exec_file <<-EOF
#!/bin/sh
export DELAYED_RUN_UPDATE_BOOTLOADER=yes
/usr/lib/bootloader/bootloader_entry $@
EOF
chmod 755 $delayed_exec_file
else
# Set up the new kernel
if [ -f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/sysconfig/bootloader ] &&
[ -f $PERL_BOOTLOADER_TESTSUITE_PATH/boot/grub/menu.lst -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/lilo.conf -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/elilo.conf -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/zipl.conf ]; then
case $flavor in
(kdump|um)
;;
(xen*)
opt_xen_kernel=
set -- $flavor
set -- ${1#xen}
opt_xen_kernel=--xen-kernel=/boot/xen${1:+-$1}.gz
if [ "$forcedefault" == "force-default" ]; then
# Add the new bootloader entry (xen kernel)
# and force it beeing the default entry
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--default \
--force-default \
--add \
--force $opt_xen_kernel \
--name "$release" \
|| exit 1
else
# Add the new bootloader entry (xen kernel)
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--default \
--add \
--force $opt_xen_kernel \
--name "$release" \
|| exit 1
fi
# Run the bootloader (e.g., lilo).
update_bootloader --refresh || exit 1
;;
(debug)
if [ "$forcedefault" == "force-default" ]; then
# Add the new bootloader entry (debug kernel)
# and force it beeing the default entry
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--force-default \
--add \
--force \
--name "$release" \
|| exit 1
else
# Add the new bootloader entry (debug kernel)
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--add \
--force \
--name "$release" \
|| exit 1
fi
# Run the bootloader (e.g., lilo).
update_bootloader --refresh || exit 1
;;
(*)
if [ "$forcedefault" == "force-default" ]; then
# Add the new bootloader entry
# and force it beeing the default entry
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--default \
--force-default \
--add \
--force \
--name "$release" \
|| exit 1
else
# Add the new bootloader entry
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--default \
--add \
--force \
--name "$release" \
|| exit 1
fi
# Run the bootloader (e.g., lilo).
update_bootloader --refresh || exit 1
;;
esac
fi
fi
}
#######################################
# Remove an existing bootloader entry #
#######################################
function remove_entry()
{
echo "bootloader_entry: This is function remove_entry()" >> $logname
# If running in instsys, write command(s) to be executed in a file
# which will be executed by yast2-bootloader after installation of
# packages is finished.
#
# This is to prevent inconsistencies triggered by libata migration.
if [ "$YAST_IS_RUNNING" == instsys -a "$DELAYED_RUN_UPDATE_BOOTLOADER" != yes ]; then
cat - >> $delayed_exec_file <<-EOF
#!/bin/sh
export DELAYED_RUN_UPDATE_BOOTLOADER=yes
/usr/lib/bootloader/bootloader_entry $@
EOF
chmod 755 $delayed_exec_file
else
if [ -f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/sysconfig/bootloader ] &&
[ -f $PERL_BOOTLOADER_TESTSUITE_PATH/boot/grub/menu.lst -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/lilo.conf -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/elilo.conf -o \
-f $PERL_BOOTLOADER_TESTSUITE_PATH/etc/zipl.conf ]; then
# Do not specify the name of a bootloader entry when removing it, thus
# removing all sections matching the kernel image and initrd names
# (either both a "linux" and a "failsafe" section, or a section
# installed with the kernel postinstall script).
#
# Rationale: we do not know whether the old entry has
# - the product name as its name (when installed with
# yast-bootloader) or
# - "Kernel-<version>" (when installed with the kernel package's
# postinstall script and perl-Bootloader).
#
# So we cannot use the name to find the correct section.
# This is safe, because on grub, this does still not match other
# sections on other partitions with the same name for the kernel
# image and initrd (because they will still have the (hdx,y) prefix
# in perl-Bootloader). Other bootloaders do not specify other
# sections at all, or do only chainload them (BootLILO.ycp), and
# thus do not match either. (#223030)
if [[ "$flavor" =~ xen ]]; then
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--xen \
--remove \
--force \
|| exit 1
else
update_bootloader --image /boot/$image \
--initrd /boot/$initrd \
--remove \
--force \
|| exit 1
fi
# Run the bootloader (e.g., lilo).
update_bootloader --refresh || exit 1
fi
fi
}
##################### M A I N ###############################################
# Log how program was called
logname=$PERL_BOOTLOADER_TESTSUITE_PATH"/var/log/YaST2/perl-BL-standalone-log"
echo "bootloader_entry was called as: $*" >> $logname
# Log parts of the current system configuration
(
echo "/proc/mounts:"
cat /proc/mounts
echo
echo "/sys:"
ls -l /sys
echo
fstab="/etc/fstab"
if [ -e $fstab ] ; then
echo "fstab:"
cat $fstab
echo
fi
echo "excerpts of /dev:"
#if doesn't find anything you can be on strange architecture (like ps3) and dump all block devices
ls -l /dev/{[hs]d[ab]?,md[0-3],.udev,disk/by-*} 2>/dev/null || ls -l /dev | grep ^b
echo
device_map="/boot/grub/device.map"
if [ -e $device_map ] ; then
echo "device.map:"
cat $device_map
echo
fi
) >> $logname
if [ `grep -c "^[^[:space:]]\+[[:space:]]\+/boot" /etc/fstab` -ne `grep -c "^[^[:space:]]\+[[:space:]]\+/boot" /etc/mtab` ]; then
echo "/boot directory is not mounted";
exit 1;
fi
# File containing commands for later execution
delayed_exec_file="/boot/perl-BL_delayed_exec"
# Checks if correct amount of arguments is given
if [ "$#" -lt "4" -o "$#" -gt "6" ] ; then
usage
fi
# Get all given arguments
getargs $@
# Find out which action should be executed
case $action in
add)
# Add a new bootloader entry
add_entry "$@"
;;
remove)
# Remove an existing bootloader entry
remove_entry "$@"
;;
*)
# Unknown argument
usage
;;
esac
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