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+other: 0.893
+graphic: 0.841
+semantic: 0.821
+performance: 0.785
+device: 0.740
+PID: 0.680
+files: 0.667
+boot: 0.659
+permissions: 0.629
+socket: 0.624
+network: 0.609
+debug: 0.578
+vnc: 0.553
+KVM: 0.512
+
+Qemu ppc does not boot Debian 3.1r8
+
+I tried booting the official image debian-31r8-powerpc-binary-1.iso with the following commandline:
+qemu-system-ppc -boot d -cdrom ../debian-31r8-powerpc-binary-1.iso -hda hd.img. The booting process stops with CPU at 100%. I can choose to boot "install-2.4" or "install" which both hangs with the last output being "Loading ramdisk". I have also tried using the git-tree which crashes qemu with the message "qemu/memory.c:1183: memory_region_add_subregion_common: Assertion `!subregion->parent' failed." before even showing anything.
+
+Additionally, qemu 0.14.1 shows the same behaviour but qemu 0.13 and 0.12.5 can boot beyond the "Loading ramdisk" message but stops immediatly afterwards with a messed up console window (letters are pushed into another, which makes them barely readable) when using "install". Also "install-2.4" boots with 0.13 and 0.12.5 beyond the "Loading ramdisk" message but stops with the last message being now "returning 0x01400000 from prom_init".
+
+Hi,
+
+this might be related to this upstream bug report: http://lists.gnu.org/archive/html/qemu-devel/2011-10/msg02929.html.
+
+Since it seems to be an issue with the mapping of the video memory, I have tried changing the graphics adapter. After changing it from "vga" to "cirrus", the virtual machine in my case would boot again.
+
+Adrian
+
+I just accidentially came across this bug report ... I did not find debian-31r8-powerpc-binary-1.iso anymore in the internet, but debian-31r8-powerpc-netinst.iso is still available, so I gave it a try: There is no output of grub in the VGA window with this ISO, but if I simply press return when the screen turns black, the kernel seems to boot and work fine with the latest version of QEMU (2.6.0). So I think this problem has likely been fixed and we can close this bug now.
+
+Just to add here: from my local tests with other older images, the text is there on the black screen but just extremely faint. My guess is that it's an endian-related bug in OpenBIOS programming the VGA registers but haven't had much time to dig into it.
+
+
+FWIW the text becomes visible again if you switch QEMU to 8-bit mode rather than 32-bit mode, e.g. adding -g 800x600x8 to the command line.
+
+