Re: [Qemu-devel] 9p as rootfs

[mar.krzeminski]

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 "host" or 
unknown-block(0,0): error -2

Thanks,
Marcin

W dniu 23.09.2016 o 21:38, mar.krzeminski pisze:
> 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 rootflags=trans=virtio noinitrd 
> console=ttyS3,115200"
>
> /Device tree entry:
>
> /        virtio: address@hidden {//
> //            compatible = "virtio,mmio";//
> //            reg = <0xff0a4000 0x200>;//
> //            interrupts = <0 72 1>;//
> //            status = "okay";//
> //        };
>
>
> / I can mount this fs from kernel using fstab entry:
> /hostfs               /mnt/host            9p trans=virtio          0  0
>
> /Do you have any idea what am I doing wrong?
>
> Thanks,
> Marcin/
> /