Hi Marcin,
Hope you have compiled the qemu with virtfs enabled.i.e --enable-virtfs
And the cli looks like this. But I am working on x86 not ARM.
-fsdev local,id=root,path=${ROOTFS},security_model=none,writeout=immediate
-device virtio-9p-pci,fsdev=root,mount_tag=/dev/root
-Regards,
Pradeep
So for some reason kernel expect that 9pfs channel will be named
/dev/root (root= seem to be ignored).
Working command line:
Kernel: /root=/dev/root rootfstype=9p rootflags=trans=virtio rw/
Qemu: /-device virtio-9p-device,fsdev=host_fs,mount_tag=/dev/root -fsdev
And most important, while mounting as roots, error is:
[1.086235] device: '9p-1': device_add
[1.087859] 9pnet_virtio: no channels available
[1.091619] device: '9p-1': device_unregister
[1.092783] device: '9p-1': device_create_release
[1.093534] VFS: Cannot open root device
Hello,
I have a problem in my custom arm machine to use 9p fs as a rootfs.
9p command line i qemu:
/-device virtio-9p-device,fsdev=host_fs,mount_tag=hostfs -fsdev
local,id=host_fs,security_model=none,path=/work/rootfs/
Kernel cmd line:
/--append "root=hostfs rootfstype=9p
