Comment 58 for bug 272530

Good news for all owners of a Samsung R560 Aura. I upgraded my BIOS from version 08LA to version 09LA and the problem went away. The 64 bit LiveCD boots without any special options and all 4 GB are reported to be available.

Some inline update for all users of that laptop:

BIOS updating is only possible from Windows and I was only able to install Windows XP onto a harddisk I swapped after removing one memory module as the XP installer crashes on 4 GB. So the recommended BIOS upgrade procedure for this laptop is:

1. Download the BIOS update onto some removable media, for example an USB stick while you still have a network connection. (You won't once you installed XP!)
2. Get an empty 2,5" SATA harddisk and put it in.
3. Reduce memory to 2 GB.
4. Install Windows.
5. Update BIOS.
6. Put memory and HD with Linux back.
7. Enjoy!