Hi Gerd,
I noticed that certain FreeDOS images are not working correctly anymore with the current version of QEMU, for example http://www.qemu-advent-calendar.org/2016/download/day10.tar.xz ... It aborts with: Error reading from drive C: DOS area: write-protection violation attempted I've bisected the issue, and it has apparently been introduced with: cd1bfd5ef336166b275a09dc9842542bf5e63ae3 seabios: update bios and vgabios binaries Any idea what might be going wrong here? Thomas