245 lines
7.5 KiB
Bash
Executable File
245 lines
7.5 KiB
Bash
Executable File
#!/bin/bash -e
|
|
## this script is called by "update-pxe-network-installer" and run in "sudo"
|
|
## created by Yong Hu (yong.hu@intel.com), 05/24/2018
|
|
|
|
function clean_rootfs() {
|
|
rootfs_dir=$1
|
|
echo "--> remove old files in original rootfs"
|
|
conf="$(ls ${rootfs_dir}/etc/ld.so.conf.d/kernel-*.conf)"
|
|
echo "conf basename = $(basename $conf)"
|
|
old_version="tbd"
|
|
if [ -f $conf ];then
|
|
old_version="$(echo $(basename $conf) | rev | cut -d'.' -f2- | rev | cut -d'-' -f2-)"
|
|
fi
|
|
echo "old version is $old_version"
|
|
# remove old files in original initrd.img
|
|
# do this in chroot to avoid accidentialy wrong operations on host root
|
|
chroot $rootfs_dir /bin/bash -x <<EOF
|
|
rm -rf ./boot/ ./etc/modules-load.d/
|
|
if [ -n $old_version ] && [ -f ./etc/ld.so.conf.d/kernel-${old_version}.conf ]; then
|
|
rm -rf ./etc/ld.so.conf.d/kernel-${old_version}.conf
|
|
rm -rf ./lib/modules/${old_version}
|
|
fi
|
|
if [ -d ./usr/lib64/python2.7/site-packages/pyanaconda/ ];then
|
|
rm -rf usr/lib64/python2.7/site-packages/pyanaconda/
|
|
fi
|
|
if [ -d ./usr/lib64/python2.7/site-packages/rpm/ ];then
|
|
rm -rf usr/lib64/python2.7/site-packages/rpm/
|
|
fi
|
|
#find old .pyo files and delete them
|
|
all_pyo="`find ./usr/lib64/python2.7/site-packages/pyanaconda/ usr/lib64/python2.7/site-packages/rpm/ -name *.pyo`"
|
|
if [ -n $all ]; then
|
|
for pyo in $all_pyo;do
|
|
rm -f $pyo
|
|
done
|
|
fi
|
|
exit
|
|
EOF
|
|
#back to previous folder
|
|
}
|
|
|
|
|
|
echo "This script makes new initrd.img, vmlinuz and squashfs.img."
|
|
echo "NOTE: it has to be executed with *root*!"
|
|
|
|
if [ $# -lt 2 ];then
|
|
echo "$0 <work_dir> <kernel_mode>"
|
|
echo "kernel_mode: std or rt"
|
|
exit -1;
|
|
fi
|
|
|
|
work_dir=$1
|
|
mode=$2
|
|
output_dir=$work_dir/output
|
|
if [ ! -d $output_dir ];then mkdir -p $output_dir; fi
|
|
|
|
if [ "$mode" != "std" ] && [ "$mode" != "rt" ]; then
|
|
echo "ERROR: wrong kernel mode, must be std or rt"
|
|
exit -1
|
|
fi
|
|
|
|
timestamp=$(date +%F_%H%M)
|
|
|
|
echo "---------------- start to make new initrd.img and vmlinuz -------------"
|
|
ORIG_INITRD=$work_dir/orig/initrd.img
|
|
if [ ! -f $ORIG_INITRD ];then
|
|
echo "ERROR: $ORIG_INITRD does NOT exist!"
|
|
exit -1
|
|
fi
|
|
|
|
kernel_rpms_dir=$work_dir/kernel-rpms
|
|
if [ ! -d $kernel_rpms_dir ];then
|
|
echo "ERROR: $kernel_rpms_dir does NOT exist!"
|
|
exit -1
|
|
fi
|
|
|
|
initrd_root=$work_dir/initrd.work
|
|
if [ -d $initrd_root ];then
|
|
rm -rf $initrd_root
|
|
fi
|
|
mkdir -p $initrd_root
|
|
|
|
cd $initrd_root
|
|
# uncompress initrd.img
|
|
echo "--> uncompress original initrd.img"
|
|
/usr/bin/xzcat $ORIG_INITRD | cpio -i
|
|
|
|
echo "--> clean up $initrd_root"
|
|
clean_rootfs $initrd_root
|
|
|
|
echo "--> extract files from new kernel and its modular rpms to initrd root"
|
|
for kf in $kernel_rpms_dir/$mode/*.rpm ; do rpm2cpio $kf | cpio -idu; done
|
|
|
|
# by now new kernel and its modules exist!
|
|
# find new kernel in /boot/
|
|
echo "--> get new kernel image: vmlinuz"
|
|
new_kernel="$(ls ./boot/vmlinuz-*)"
|
|
echo $new_kernel
|
|
if [ -f $new_kernel ];then
|
|
#copy out the new kernel
|
|
if [ $mode == "std" ];then
|
|
if [ -f $output_dir/new-vmlinuz ]; then
|
|
mv -f $output_dir/new-vmlinuz $output_dir/vmlinuz-bakcup-$timestamp
|
|
fi
|
|
cp -f $new_kernel $output_dir/new-vmlinuz
|
|
else
|
|
if [ -f $output_dir/new-vmlinuz-rt ]; then
|
|
mv -f $output_dir/new-vmlinuz-rt $output_dir/vmlinuz-rt-bakcup-$timestamp
|
|
fi
|
|
cp -f $new_kernel $output_dir/new-vmlinuz-rt
|
|
fi
|
|
kernel_name=$(basename $new_kernel)
|
|
new_ver=$(echo $kernel_name | cut -d'-' -f2-)
|
|
echo $new_ver
|
|
else
|
|
echo "ERROR: new kernel is NOT found!"
|
|
exit -1
|
|
fi
|
|
|
|
echo "-->check module dependencies in new initrd.img in chroot context"
|
|
chroot $initrd_root /bin/bash -x <<EOF
|
|
/usr/sbin/depmod -aeF "/boot/System.map-$new_ver" "$new_ver"
|
|
if [ $? == 0 ]; then echo "module dependencies are satisfied!" ; fi
|
|
## Remove the bisodevname package!
|
|
rm -f ./usr/lib/udev/rules.d/71-biosdevname.rules ./usr/sbin/biosdevname
|
|
exit
|
|
EOF
|
|
|
|
echo "--> Rebuild the initrd"
|
|
if [ -f $output_dir/new-initrd.img ]; then
|
|
mv -f $output_dir/new-initrd.img $output_dir/initrd.img-bakcup-$timestamp
|
|
fi
|
|
find . | cpio -o -H newc | xz --check=crc32 --x86 --lzma2=dict=512KiB > $output_dir/new-initrd.img
|
|
if [ $? != 0 ];then
|
|
echo "ERROR: failed to create new initrd.img"
|
|
exit -1
|
|
fi
|
|
|
|
cd $work_dir
|
|
|
|
if [ -f $output_dir/new-initrd.img ];then
|
|
ls -l $output_dir/new-initrd.img
|
|
else
|
|
echo "ERROR: new-initrd.img is not generated!"
|
|
exit -1
|
|
fi
|
|
|
|
if [ -f $output_dir/new-vmlinuz ];then
|
|
ls -l $output_dir/new-vmlinuz
|
|
else
|
|
echo "ERROR: new-vmlinuz is not generated!"
|
|
exit -1
|
|
fi
|
|
|
|
echo "---------------- start to make new squashfs.img -------------"
|
|
ORIG_SQUASHFS=$work_dir/orig/squashfs.img
|
|
if [ ! -f $ORIG_SQUASHFS ];then
|
|
echo "ERROR: $ORIG_SQUASHFS does NOT exist!"
|
|
exit -1
|
|
fi
|
|
|
|
rootfs_rpms_dir=$work_dir/rootfs-rpms
|
|
if [ ! -d $rootfs_rpms_dir ];then
|
|
echo "ERROR: $rootfs_rpms_dir does NOT exist!"
|
|
exit -1
|
|
fi
|
|
|
|
# make squashfs.mnt and ready and umounted
|
|
if [ ! -d $work_dir/squashfs.mnt ];then
|
|
mkdir -p $work_dir/squashfs.mnt
|
|
else
|
|
# in case it was mounted previously
|
|
mnt_path=$(mount | grep "squashfs.mnt" | cut -d' ' -f3-3)
|
|
if [ x"$mnt_path" != "x" ] && [ "$(basename $mnt_path)" == "squashfs.mnt" ];then
|
|
umount $work_dir/squashfs.mnt
|
|
fi
|
|
fi
|
|
|
|
# make squashfs.work ready and umounted
|
|
squashfs_root="$work_dir/squashfs.work"
|
|
# Now mount the rootfs.img file:
|
|
if [ ! -d $squashfs_root ];then
|
|
mkdir -p $squashfs_root
|
|
else
|
|
# in case it was mounted previously
|
|
mnt_path=$(mount | grep "$(basename $squashfs_root)" | cut -d' ' -f3-3)
|
|
if [ x"$mnt_path" != "x" ] && [ "$(basename $mnt_path)" == "$(basename $squashfs_root)" ];then
|
|
umount $squashfs_root
|
|
fi
|
|
fi
|
|
|
|
echo $ORIG_SQUASHFS
|
|
mount -o loop -t squashfs $ORIG_SQUASHFS $work_dir/squashfs.mnt
|
|
|
|
if [ ! -d ./LiveOS ];then mkdir -p ./LiveOS ; fi
|
|
|
|
echo "--> copy rootfs.img from original squashfs.img to LiveOS folder"
|
|
cp -f ./squashfs.mnt/LiveOS/rootfs.img ./LiveOS/.
|
|
|
|
echo "--> done to copy rootfs.img, umount squashfs.mnt"
|
|
umount ./squashfs.mnt
|
|
|
|
echo "--> mount rootfs.img into $squashfs_root"
|
|
mount -o loop LiveOS/rootfs.img $squashfs_root
|
|
|
|
echo "--> clean up ./squashfs-rootfs from original squashfs.img in chroot context"
|
|
clean_rootfs $squashfs_root
|
|
|
|
cd $squashfs_root
|
|
echo "--> extract files from rootfs-rpms to squashfs root"
|
|
for ff in $rootfs_rpms_dir/*.rpm ; do rpm2cpio $ff | cpio -idu; done
|
|
|
|
echo "--> extract files from kernel and its modular rpms to squashfs root"
|
|
for kf in $kernel_rpms_dir/$mode/*.rpm ; do rpm2cpio $kf | cpio -idu; done
|
|
|
|
echo "-->check module dependencies in new squashfs.img in chroot context"
|
|
#we are using the same new kernel-xxx.rpm, so the $new_ver is the same
|
|
chroot $squashfs_root /bin/bash -x <<EOF
|
|
/usr/sbin/depmod -aeF "/boot/System.map-$new_ver" "$new_ver"
|
|
if [ $? == 0 ]; then echo "module dependencies are satisfied!" ; fi
|
|
## Remove the bisodevname package!
|
|
rm -f ./usr/lib/udev/rules.d/71-biosdevname.rules ./usr/sbin/biosdevname
|
|
exit
|
|
EOF
|
|
|
|
# come back to the original work dir
|
|
cd $work_dir
|
|
|
|
echo "--> unmount $squashfs_root"
|
|
umount $squashfs_root
|
|
#rename the old version
|
|
if [ -f $output_dir/new-squashfs.img ]; then
|
|
mv -f $output_dir/new-squashfs.img $output_dir/squashfs.img-backup-$timestamp
|
|
fi
|
|
|
|
echo "--> make the new squashfs image"
|
|
mksquashfs LiveOS $output_dir/new-squashfs.img -keep-as-directory -comp xz -b 1M
|
|
if [ $? == 0 ];then
|
|
ls -l $output_dir/new-squashfs.img
|
|
else
|
|
echo "ERROR: failed to make a new squashfs.img"
|
|
exit -1
|
|
fi
|
|
|
|
echo "--> done successfully!"
|