Hi! I develop my own operating system and I have been using this command to start my operating system: $ qemu-system-x86_64 -kernel fudge -initrd initrd.tar I just recently upgraded the qemu package for arch linux and now this does not seem to work anymore. I get this error message: Error while fetching elf kernel from rom So I checked out the latest version of qemu from git today and did a build but it had the same result. Now I havent made any changes to my kernel so I know I havent screwed anything up in that regard. It is a normal 32 bit x86 multiboot compliant kernel so it should work using these commands. I run qemu on a x86_64 machine. I'd like to help sort this issue out. I will do my best to collect any data you might be interested in. I will try to figure out what change made this not work but it will take some time so if anyone has an idea what commit-id it is please let me know. Thanks Jens