rm -v $1/etc/resolv.conf
rm -v $1/var/lib/dbus/machine-id
rm -v $1/var/cache/debconf/templates.dat-old 
touch $1/var/cache/debconf/templates.dat-old 
rm -v $1/var/lib/aptitude/pkgstates
touch $1/var/lib/aptitude/pkgstates
rm -v $1/var/lib/aptitude/pkgstates.old
rm -v $1/var/lib/dpkg/status-old
touch $1/var/lib/dpkg/status-old
rmdir -v $1/cdrom
chroot $1 dpkg-query -W --showformat='${Package} ${Version}\n' > filesystem.manifest
cp -v filesystem.manifest filesystem.manifest-desktop
sed -i '/ubiquity/d' filesystem.manifest-desktop
sed -i '/casper/d' filesystem.manifest-desktop
rm -v filesystem.manifest-desktope
mksquashfs $1 filesystem.squashfs -no-progress
cd ..
md5sum ./casper/filesystem.* >> md5sum.txt