? Cwd::cwd() . "/testdir/var/lib/proxmox-installer"
: "/var/lib/proxmox-installer"
;
-my $proxmox_cddir = is_test_mode() ? "../pve-cd-builder/tmp/data-gz/" : "/cdrom";
+my $proxmox_cddir = is_test_mode() ? $ENV{'CD_BUILDER_DIR'} || "../pve-cd-builder/tmp/data-gz/" : "/cdrom";
my $proxmox_pkgdir = "${proxmox_cddir}/proxmox/packages/";
my $boot_type = -d '/sys/firmware/efi' ? 'efi' : 'bios';