On Wed, Jun 19, 2019 at 10:47 AM Manuel Quintero Fonseca <man...@uas.edu.mx> wrote:
> Hello, I have been wanting to learn how to use QEMU for the development of > the linux kernel, at the kernelnewbies.org page I did not find any > information, in google I found this page: > https://www.collabora.com/news-and-blog/blog/2017/01/16/setting-up-qemu-kvm-for-kernel-development/ > > Following the first examples, it gives me two problems, I hope you can > guide me. > > $qemu-system-x86_64 -kernel /boot/vmlinuz-`uname -r` > > end Kernel panic - not sysncing: VFS: Unable to mount toor fs on > unknown-block(0,0) > > > aku@openSUSE:~> sudo qemu-system-x86_64 -kernel /boot/vmlinuz-`uname -r` > [sudo] password for root: > Unable to init server: Could not connect: Connection refused > Hi Manuel, This is because you're not supplying it with a root file system. The article you linked goes on to describe this process, but I've found this blog post[1] to be a bit more concise and easy to follow. It'll show you how to use "mkinitramfs" to make a ramdisk to pass to QEMU alongside the kernel you're trying to boot. Good luck! Connor [1] http://nickdesaulniers.github.io/blog/2018/10/24/booting-a-custom-linux-kernel-in-qemu-and-debugging-it-with-gdb/ > > > > Thank you > _______________________________________________ > Kernelnewbies mailing list > Kernelnewbies@kernelnewbies.org > https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies >
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