Bug#571958: Cannot install from ntfs hd-media with any version of debian installer

[Costin Guşă <costinel@gmail.com>]

Package: debian-installer
Version: 5.0

In the hd-media file downloaded from
http://ftp.debian.org/debian/dists/stable/main/installer-i386/current/images/hd-media/boot.img.gz,
in the initrd.gz, the ./var/lib/dpkg/info/iso-scan.postinst file
contains:

FS="ext2 ext3 reiserfs fat vfat xfs iso9660 hfsplus hfs ntfs"
for fs in $FS; do
        modprobe $fs >/dev/null 2>&1 || true
done

but hfs, hfsplus, xfs and ntfs module files are missing:

# find ./lib/modules/2.6.26-2-486/kernel/fs/ -type f -iname *.ko
./lib/modules/2.6.26-2-486/kernel/fs/nls/nls_cp437.ko
./lib/modules/2.6.26-2-486/kernel/fs/nls/nls_utf8.ko
./lib/modules/2.6.26-2-486/kernel/fs/nls/nls_base.ko
./lib/modules/2.6.26-2-486/kernel/fs/reiserfs/reiserfs.ko
./lib/modules/2.6.26-2-486/kernel/fs/ext3/ext3.ko
./lib/modules/2.6.26-2-486/kernel/fs/jbd/jbd.ko
./lib/modules/2.6.26-2-486/kernel/fs/mbcache.ko
./lib/modules/2.6.26-2-486/kernel/fs/vfat/vfat.ko
./lib/modules/2.6.26-2-486/kernel/fs/ext2/ext2.ko
./lib/modules/2.6.26-2-486/kernel/fs/fat/fat.ko
./lib/modules/2.6.26-2-486/kernel/fs/isofs/isofs.ko

this prevents hd-media installations when iso file is located on
{ntfs,xfs,hfs,hfsplus}-formatted usb bootable partitions on portable
drives

I also checked the newly-released 6.0 alpha1 and a daily build and
both are in the same condition:

http://people.debian.org/~joeyh/d-i/images/daily/hd-media/boot.img.gz
http://ftp.nl.debian.org/debian/dists/testing/main/installer-i386/current/images/hd-media/boot.img.gz