QEMU end Kernel panic - not sysncing: VFS: Unable to mount toor fs on unknown
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-... 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 Thank you
On Wed, Jun 19, 2019 at 10:47 AM Manuel Quintero Fonseca <manuel@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-...
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-kern...
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thank you all, I will review the information El mié., 19 jun. 2019 a las 16:52, Connor Kuehl (<cipkuehl@gmail.com>) escribió:
On Wed, Jun 19, 2019 at 10:47 AM Manuel Quintero Fonseca < manuel@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-...
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-kern...
Thank you _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org https://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
On Wed, Jun 19, 2019 at 10:05:54PM -0600, Manuel Quintero Fonseca wrote:
thank you all, I will review the information
There is also a nice tool which makes it easy to run a QEMU virtual machine with locally built kernel: https://git.kernel.org/pub/scm/utils/kernel/virtme/virtme.git/
participants (3)
-
Connor Kuehl -
Manuel Quintero Fonseca -
Michal Rostecki