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slackware-current/source/a/pkgtools/scripts/make-kernel-backup
Patrick J Volkerding 8d25718f1e Thu Nov 28 21:47:57 UTC 2024
Happy Thanksgiving to everyone celebrating, and happy Thursday to everyone
else. I've been looking at this new fontconfig (and have run into some of the
terrible looking pages I remembered from previous attempts to upgrade). The
solution is certainly *not* to disable bitmap fonts. I need those in my
terminal emulator, and have never seen a vector font that looks correct. What
I've done this time is make the defaults for fontconfig sane and user
configurable, and then converted the two bitmap fonts that are causing the
problems to OTB format and changing the family name from "name" to "name (OTB)"
which prevents them from being picked up by default.
Hope this looks better! Cheers! :-)
a/file-5.46-x86_64-1.txz:  Upgraded.
a/mkinitrd-1.4.11-x86_64-52.txz:  Rebuilt.
  geninitrd: since we're sourcing /etc/default/geninitrd, we might as well test
  the AUTO_REMOVE_ORPHANED_INITRDS variable directly instead of grepping for it
  in the defaults file. Thanks to Mechanikx.
a/pkgtools-15.1-noarch-18.txz:  Rebuilt.
  make-kernel-backup: account for "file" changing 80386 to i386.
l/libqalculate-5.4.0.1-x86_64-1.txz:  Upgraded.
l/openal-soft-1.24.1-x86_64-1.txz:  Upgraded.
l/pipewire-1.2.7-x86_64-1.txz:  Upgraded.
x/font-adobe-100dpi-1.0.4-noarch-2.txz:  Rebuilt.
  Install these fonts as OTB rather than PCF.
x/font-adobe-75dpi-1.0.4-noarch-2.txz:  Rebuilt.
  Install these fonts as OTB rather than PCF.
x/fontconfig-2.15.0-x86_64-3.txz:  Rebuilt.
  Let's not link any hinting, subpixel, or lcdfilter conf files by default.
  That way the user can choose what to link (if anything) without future
  fontconfig updates stomping on those choices.
x/mesa-24.2.8-x86_64-1.txz:  Upgraded.
2024-11-28 23:35:14 +01:00

203 lines
7.9 KiB
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#!/bin/bash
# Copyright 2024 Patrick J. Volkerding, Sebeka, Minnesota, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# This script creates a virtual installed package named
# kernel-backup-${KERNEL_VERSION}-${ARCH}-${BUILD}, which
# consists of a backup of /boot/vmlinuz-${KERNEL_VERSION} and the modules
# that go with that kernel.
# Also included will be one or two symlinks:
# /boot/vmlinuz-backup pointing to /boot/vmlinuz-${KERNEL_VERSION},
# and, if /boot/initrd-${KERNEL_VERSION}.img exists, we will have
# /boot/initrd-backup.img pointing to that.
#
# If $1 is a kernel, we'll use that. Otherwise, we'll use $KERNEL_FILE,
# which defaults to /boot/vmlinuz-generic. We will include the kernel
# as well as the related tree of kernel modules. Once backed up, this
# kernel can be added to your bootloader as a fallback kernel, and removing
# or upgrading the original kernel-generic package will not remove it. But,
# you can remove the kernel-backup package later with removepkg if you wish.
#
# The $KERNEL_FILE doesn't need to have any particular naming scheme.
# You could point at /usr/src/linux/arch/x86/boot/bzImage for all this
# script cares. The kernel modules do need to be installed first though.
# If /etc/default/make-kernel-backup exists, source it to set initial values
# for for any of:
# BUILD, KERNEL_FILE, BACKUP_NAME, and MAKE_SYMLINKS:
if [ -r /etc/default/make-kernel-backup ]; then
. /etc/default/make-kernel-backup
fi
BUILD=${BUILD:-1}
# If we don't have KERNEL_FILE set already, and we have $1, let's
# assume that $1 is the kernel that we want to use:
if [ -z "$KERNEL_FILE" -a ! -z "$1" ]; then
KERNEL_FILE=$1
fi
# This is the kernel to use (may be a symlink):
KERNEL_FILE=${KERNEL_FILE:-/boot/vmlinuz-generic}
# In case this is a symlink, find the real file:
KERNEL_FILE=$(readlink -f $KERNEL_FILE)
# Is this a Linux kernel?
if ! file $KERNEL_FILE | grep -q "Linux kernel" ; then
echo "ERROR: $KERNEL_FILE does not appear to be a Linux kernel."
exit 1
fi
# Find the kernel version:
if [ -r $KERNEL_FILE ]; then
KERNEL_VERSION=$(strings $KERNEL_FILE | grep '([^ ]*@[^ ]*) #' | cut -f1 -d' ')
else
echo "ERROR: $KERNEL_FILE not found."
exit 1
fi
# This is the kernel name for the backup kernel:
BACKUP_NAME=${BACKUP_NAME:-backup}
# Do we want to make unversioned symlinks to the backup kernel and (if used)
# initrd? With the default BACKUP_NAME, these would be named vmlinuz-backup
# and initrd-backup.img.
MAKE_SYMLINKS=${MAKE_SYMLINKS:-true}
# We require the modules for this kernel version to be installed:
if [ ! -d /lib/modules/${KERNEL_VERSION} ]; then
echo "ERROR: directory /lib/modules/${KERNEL_VERSION} does not exist."
echo "Refusing to back up a kernel without modules."
exit 1
fi
# Guess the $ARCH:
if file /bin/bash | grep -wq x86-64 ; then
ARCH="x86_64"
elif file /bin/bash | grep -wq 386 ; then
ARCH="i686"
else
ARCH="$(uname -m)"
fi
if [ "$MAKE_SYMLINKS" = "true" ]; then
# Make an unversioned symlink:
rm -f /boot/vmlinuz-${BACKUP_NAME}
ln -sf vmlinuz-${KERNEL_VERSION} /boot/vmlinuz-${BACKUP_NAME}
fi
### ACTUALLY, it is better to not include this, since the initrds are
### not normally part of some other package that might get removed
## If there is an initrd for this kernel version, we will assume that's
## the one we should use:
#if [ -r /boot/initrd-${KERNEL_VERSION}.img ]; then
# INITBLURB="Backed up /boot/initrd-${KERNEL_VERSION}.img."
#else
# INITBLURB="Not including an initrd because a matching version was not found."
#fi
# OK, an initrd could be made automatically if you don't have one, but that's
# not really this script's job. ;-) If you don't already have one, we will
# assume that's because you don't use one, and don't want one.
#else
# # Make an initrd for this:
# sh /usr/share/mkinitrd/mkinitrd_command_generator.sh -k ${KERNEL_VERSION} -a "-L -o /boot/initrd-${KERNEL_VERSION}.img" | bash 1> /dev/null 2> /dev/null
#fi
if [ "$MAKE_SYMLINKS" = "true" ]; then
# Make an initrd symlink if there is an initrd:
if [ -f /boot/initrd-${KERNEL_VERSION}.img ]; then
rm -f /boot/initrd-${BACKUP_NAME}.img
ln -sf initrd-${KERNEL_VERSION}.img /boot/initrd-${BACKUP_NAME}.img
fi
fi
# Some shortcuts to avoid redundancy:
PACKAGE_NAME="kernel-${BACKUP_NAME}-$(echo ${KERNEL_VERSION} | tr - _)-${ARCH}-${BUILD}"
PACKAGES_ENTRY=/var/lib/pkgtools/packages/${PACKAGE_NAME}
SCRIPTS_ENTRY=/var/lib/pkgtools/scripts/${PACKAGE_NAME}
# Now we need to make a "virtual" package. We'll start with the "pkgtools/packages/" entry:
cat << EOF > $PACKAGES_ENTRY
PACKAGE NAME: ${PACKAGE_NAME}
COMPRESSED PACKAGE SIZE: 93M
UNCOMPRESSED PACKAGE SIZE: 444M
PACKAGE LOCATION: ./${PACKAGE_NAME}
PACKAGE DESCRIPTION:
kernel-${BACKUP_NAME}: kernel-${BACKUP_NAME} (backup of ${KERNEL_FILE})
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}: This is a backup of ${KERNEL_FILE} and modules.
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
kernel-${BACKUP_NAME}:
FILE LIST:
./
boot/
EOF
echo boot/vmlinuz-${KERNEL_VERSION} >> $PACKAGES_ENTRY
#if [ -f /boot/initrd-${KERNEL_VERSION}.img ]; then
# echo boot/initrd-${KERNEL_VERSION}.img >> $PACKAGES_ENTRY
#fi
echo "lib/" >> $PACKAGES_ENTRY
echo "lib/modules/" >> $PACKAGES_ENTRY
# First the files:
find /lib/modules/${KERNEL_VERSION} -type f | cut -b2- > ${PACKAGES_ENTRY}-tmp
# Then the directories:
find /lib/modules/${KERNEL_VERSION} -type d | cut -b2- | sed "s|$|/|" >> ${PACKAGES_ENTRY}-tmp
cat ${PACKAGES_ENTRY}-tmp | sort >> $PACKAGES_ENTRY
rm -f ${PACKAGES_ENTRY}-tmp
# Finally, store the symlinks in the "pkgtools/scripts/" entry:
make_install_script() {
TAB="$(echo -e "\t")"
COUNT=1
while :; do
LINE="$(sed -n "$COUNT p" $1)"
if [ "$LINE" = "" ]; then
break
fi
LINKGOESIN="$(echo "$LINE" | cut -f 1 -d "$TAB")"
LINKGOESIN="$(dirname "$LINKGOESIN")"
LINKNAMEIS="$(echo "$LINE" | cut -f 1 -d "$TAB")"
LINKNAMEIS="$(basename "$LINKNAMEIS")"
LINKPOINTSTO="$(echo "$LINE" | cut -f 2 -d "$TAB")"
echo "( cd $LINKGOESIN ; rm -rf $LINKNAMEIS )"
echo "( cd $LINKGOESIN ; ln -sf $LINKPOINTSTO $LINKNAMEIS )"
COUNT=$(expr $COUNT + 1)
done
}
rm -f ${SCRIPTS_ENTRY}
find /boot -type l -name vmlinuz-${BACKUP_NAME} -printf "%p\t%l\n" | cut -b2- | LC_COLLATE=C sort | sed 's,^\./,,; s,[ "#$&\x27()*;<>?[\\`{|~],\\&,g;' | make_install_script >> ${SCRIPTS_ENTRY}
find /boot -type l -name initrd-${BACKUP_NAME}.img -printf "%p\t%l\n" | cut -b2- | LC_COLLATE=C sort | sed 's,^\./,,; s,[ "#$&\x27()*;<>?[\\`{|~],\\&,g;' | make_install_script >> ${SCRIPTS_ENTRY}
find /lib/modules/${KERNEL_VERSION} -type l -printf "%p\t%l\n" | cut -b2- | LC_COLLATE=C sort | sed 's,^\./,,; s,[ "#$&\x27()*;<>?[\\`{|~],\\&,g;' | make_install_script >> ${SCRIPTS_ENTRY}
echo "Backed up ${KERNEL_FILE}."
echo "Backed up kernel modules in /lib/modules/${KERNEL_VERSION}/"
if [ ! -z "$INITBLURB" ]; then
echo $INITBLURB
fi
echo "Installed as package ${PACKAGE_NAME}."