bdisk/lib/06-centos_is_stupid.func.sh

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2014-12-19 14:13:30 -05:00
function centos_is_stupid {
echo "Checking for appropriate kernel version and mksquashfs version..."
SQFS_VER=$(mksquashfs -version 2>&1 | head -n1 | awk '{print $3}' | sed -re 's/(^[0-9]*\.[0-9]*).*$/\1/g')
KERN_VER=$(uname -r | cut -f1 -d"-")
SQUASH_OPTS="-noappend -comp xz"
set +e
ver_check() {
[ "$1" == "$2" ] && return 10
ver1front=`echo $1 | cut -d "." -f -1`
ver1back=`echo $1 | cut -d "." -f 2-`
ver2front=`echo $2 | cut -d "." -f -1`
ver2back=`echo $2 | cut -d "." -f 2-`
if [ "$ver1front" != "$1" ] || [ "$ver2front" != "$2" ]; then
[ "$ver1front" -gt "$ver2front" ] && return 11
[ "$ver1front" -lt "$ver2front" ] && return 9
[ "$ver1front" == "$1" ] || [ -z "$ver1back" ] && ver1back=0
[ "$ver2front" == "$2" ] || [ -z "$ver2back" ] && ver2back=0
ver_check "$ver1back" "$ver2back"
return $?
else
[ "$1" -gt "$2" ] && return 11 || return 9
fi
}
ver_check ${KERN_VER} "2.6.38"
KERNTEST=${?}
ver_check ${SQFS_VER} "4.2"
SQFSTEST=${?}
if [ ${KERNTEST} -lt "10" ];
then
echo "You need a newer kernel to even think about doing this. (>= 2.6.38)"
echo "If you're on CentOS, there are 3.x branches available via the elrepo repository."
echo "I recommend the 'kernel-lt' package from there."
echo "Bailing out."
exit 1
#elif [ ${SQFS_VER} -ge "4.2" ] && [ ${KERN_VER} -ge "2.6.38" ];
elif [ ${SQFSTEST} -ge "10" ] && [ ${KERNTEST} -ge "10" ];
then
#echo "Awesome; your mksquashfs (if found) is not less than v4.2."
SQUASH_CMD=$(which mksquashfs)
if [ ${?} != "0" ];
then
echo "...Except you need to install whatever package you need to for mksquashfs."
exit 1
else
SQUASH_CMD=$(which mksquashfs)
fi
elif [ ${SQFSTEST} -lt "10" ] && [ ${KERNTEST} -ge "10" ];
then
if [ ! -f ${SRCDIR}/squashfs4.2/squashfs-tools/mksquashfs ];
then
echo "Boy howdy. We need to compile a custom version of the squashfs-tools because you aren't running a version that supports XZ. Give me a second."
set -e
mkdir -p ${SRCDIR} ${ROOTDIR}/bin
cd ${SRCDIR}
#wget --quiet -O squashfs4.2.tar.gz "http://downloads.sourceforge.net/project/squashfs/squashfs/squashfs4.2/squashfs4.2.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fsquashfs%2Ffiles%2F&ts=1387047818&use_mirror=hivelocity"
curl -o squashfs4.2.tar.gz "http://downloads.sourceforge.net/project/squashfs/squashfs/squashfs4.2/squashfs4.2.tar.gz?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fsquashfs%2Ffiles%2F&ts=1387047818&use_mirror=hivelocity" >> "${LOGFILE}.${FUNCNAME}" 2>&1
tar -zxf squashfs4.2.tar.gz
cd squashfs4.2/squashfs-tools
make clean
sed -i -e 's/^#\(XZ_SUPPORT\)/\1/g' Makefile
make
SQUASH_CMD="${SRCDIR}/squashfs4.2/squashfs-tools/mksquashfs"
else
echo "Using custom-compiled mksquashfs from an earlier run."
SQUASH_CMD="${SRCDIR}/squashfs4.2/squashfs-tools/mksquashfs"
fi
fi
set -e
}