make preseed compatible with TARDIS for kubuntu 22.04

preseed/lip-early.sh

 #!/bin/sh
+# in earlier releases (but not in kubuntu 22.04), this mount was done automatically
+mkdir -p /root/isodevice
+mount /dev/disk/by-label/LIPSTICK /root/isodevice
 sed -i -e '/ubuntu\.com/d' -e '/^$/d' /root/etc/apt/sources.list
 sed -i -e 's/lsb_release\.get_lsb_information()/lsb_release.get_distro_information()/g' /root/usr/bin/apt-clone # only relevant for kubuntu <= 20.04
 echo "deb [ arch=amd64 trusted=yes ] file:///isodevice/archives-$(sed -n 's/DISTRIB_CODENAME=\([a-z]\+\)/\1/p' /root/etc/lsb-release) $(sed -n 's/DISTRIB_CODENAME=\([a-z]\+\)/\1/p' /root/etc/lsb-release) lip" >> /root/etc/apt/sources.list
@@ -7,4 +10,4 @@ echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ $(sed -n 's/DISTRIB_CODENAME
 echo "deb http://ftp.halifax.rwth-aachen.de/ubuntu/ $(sed -n 's/DISTRIB_CODENAME=\([a-z]\+\)/\1/p' /root/etc/lsb-release)-updates main restricted universe multiverse" >> /root/etc/apt/sources.list
 chroot /root /usr/bin/apt-get update
 chroot /root /usr/bin/apt-get -y install $(grep '^[^|#]*L[^|]*|' /root/isodevice/packages | cut -d'|' -f 2)
-./root/isodevice/preseed/lipnsa.hook.sh
+sh /root/cdrom/preseed/lipnsa.hook.sh /root/isodevice

preseed/lip.seed

-d-i preseed/early_command string sh /root/isodevice/preseed/lip-early.sh
-d-i ubiquity/success_command string sh /isodevice/preseed/lip-success.sh
+d-i preseed/early_command string sh /root/cdrom/preseed/lip-early.sh
+ubiquity ubiquity/success_command string sh /cdrom/preseed/lip-success.sh
 d-i clock-setup/utc boolean false
 d-i time/zone string Europe/Berlin
 ubiquity ubiquity/use_nonfree boolean true