Fix Buster incompatibilities

- fix locale kernel parameter for installation
- use Buster ISO and checksum and switch to AMD64 architecture
- increase memory of VirtualBox VM to 1 GB to allow graphical installer
- avoid CD questions by pre-seeding apt-setup/cdrom
- uninstall gcc-8 instead of gcc-4.8 in scripts/cleanup.sh
- modify hd-media initrd.gz by adding fdisk udeb content needed by the
  babelbox partition deletion script

scripts/cleanup.sh

@@ -1,6 +1,6 @@
 # Clean up
 
-apt-get --yes remove libc6-dev gcc-4.8 gcc-4.9 linux-libc-dev gcc-4.8-base dmidecode laptop-detect
+apt-get --yes remove dmidecode gcc-8 laptop-detect libc6-dev linux-libc-dev
 apt-get --yes autoremove
 apt-get --yes clean
 

scripts/setup-babelbox.sh

@@ -4,11 +4,18 @@ set -e
 
 apt-get install -y git wget
 cd /srv
-wget http://ftp.debian.org/debian/dists/stable/main/installer-i386/current/images/hd-media/gtk/initrd.gz http://ftp.debian.org/debian/dists/stable/main/installer-i386/current/images/hd-media/gtk/vmlinuz
-git clone https://anonscm.debian.org/git/d-i/babelbox.git
+wget http://ftp.debian.org/debian/dists/stable/main/installer-amd64/current/images/hd-media/gtk/initrd.gz http://ftp.debian.org/debian/dists/stable/main/installer-amd64/current/images/hd-media/gtk/vmlinuz http://ftp.debian.org/debian/pool/main/u/util-linux/fdisk-udeb_2.33.1-0.1_amd64.udeb
+mkdir initrd_with_fdisk
+cd initrd_with_fdisk
+gunzip -c ../initrd.gz | cpio -id
+dpkg-deb -x ../fdisk-udeb_2.33.1-0.1_amd64.udeb .
+find . | cpio --create --format='newc' | gzip -9 > ../initrd.gz
+cd ..
+rm -rf initrd_with_fdisk fdisk-udeb_2.33.1-0.1_amd64.udeb
+git clone https://salsa.debian.org/installer-team/babelbox.git
 cd babelbox
 cat babelbox-grub >> /etc/grub.d/40_custom
 update-grub
 ./cronscript
 
-echo "You need to download a Debian i386 DVD ISO into /srv"
+echo "You need to download a Debian amd64 DVD ISO into /srv"