#!/bin/bash -e

#---------------------------------------------------------------------

# Steps involved in  updating a copy of this directory to a new kernel
# release:

#---------------------------------------------------------------------

# 1. Edit this script.  Go to the  "kernel release parameters" section
# and:
#
# Set NEWREL  to the new upstream kernel release [#.#.#]
# Set NEWDATE to the new 6-digit date [######]
# Set NEWBITS to 32 for 32-bit or 64 for 64-bit
#
# For example:
#
# NEWREL=5.10.12
# NEWDATE=210202
# NEWBITS=64

#---------------------------------------------------------------------

# 2. Obtain  the appropriate  Linux source tarball  and put it in this
# directory. The filename should be equal to:
#
#     linux-$NEWREL.tar.xz
#
# where NEWREL is the same as specified in this script.

#---------------------------------------------------------------------

# 3. Set your terminal program window dimensions to at least 80x25.

#---------------------------------------------------------------------

# 4. Run this  script interactively in  its directory.  Don't redirect
# input or output. For example:
#
#     bash -e ./update-kernel.sh

# You'll be taken to a kernel  configuration screen.  Use the left and
# right arrow keys to select Exit; then press Enter to Exit.

#---------------------------------------------------------------------

# 5. cd /ram/kernelsbuilt/

#---------------------------------------------------------------------

# 6. cd into the appropriate subdirectory.

#---------------------------------------------------------------------

# 7. This command should now build a kernel:
#
#     bash ./build-kernel.sh --run >& build.log &

#---------------------------------------------------------------------

# 8. If the  build  is successful,  the sub-directory that you were in
# will be moved from "/ram/kernelsbuilt/" into "/kernelsbuilt/".

#---------------------------------------------------------------------

# 9. Some final installation steps are required.  See  the comments in
# "build-kernel.sh".

#---------------------------------------------------------------------
# Kernel release/version parameters.

NEWREL=6.11.11
NEWDATE=241208
NEWBITS=32

#---------------------------------------------------------------------

set -e
CFGLOCAL="-$NEWDATE-$NEWBITS"

# Delete old output tarballs.
rm -fr kernel-*.tar.*

sed -e "s/-[0-9][0-9][0-9][0-9][0-9][0-9]-[36][24]/$CFGLOCAL/g" \
    -e "s/Revision: [0-9][0-9][0-9][0-9][0-9][0-9]/Revision: $NEWDATE/g" \
    -e "s/\([ =]\)[56]\.[0-9][0-9]*\.[0-9][0-9]*/\1$NEWREL/g" \
    -i \
build-kernel.sh \
config-info.txt \
config.kernel \
prepare-kernel-sources.sh \
readme.txt \
    || exit 1

bash prepare-kernel-sources.sh              || exit 1
foo=`pwd`

mkdir -p /ram/kernelsbuilt
cd       /ram/kernelsbuilt

rm -fr        kernel$CFGLOCAL
tar jxf  $foo/kernel$CFGLOCAL.tar.bz2       || exit 1
cd            kernel$CFGLOCAL

#---------------------------------------------------------------------
# End of file.