Re: [Xen-users] xl can't create and boot vm when with on hard disk assignment

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Mon, Apr 21, 2014 at 04:03:58AM -0400, Tuan Pengfei wrote:
> Hello everyone.
> These days, I am doing some interesting work with xen and tiny core linux.
> my conf is
> 
> kernel = "path/vmlinux"
> ramdisk = "path/corepure64"
> memory = 128
> name = "mytcl-64"
> on_poweroff = "preserve"
> #on_crash = "preserve"
> vif=['mac=00:00:00:11:00:11,ip=192.168.1.12,bridge=br0'];
> extra="console=tty xencons=tty nortc nodhcp norestore noswap noutc nozswwap"
> 
> root = "/dev/hda1 ro"
> disk = ["file:/path/disk.img,hda1,w"]
> #bootloader = "pygrub"
> 
> in fact, disk.img is a full 0 file.
> But when I comment disk=... line, it seems the vm halts at the kernel init
> level when it is created, at a probability of 20%. However, with this
> option, it always can boot up. I am using xl instead of xm. When I use xm,

You specify root= option but doesn't provide a valid image, what do you
expect from the guest kernel?

Kernel log will be helpful.

> it just couldn't create the vm successfully, with an error "Device 0 can't
> be connected".

You cannot use both xm and xl at the same time. I suggest you stick with
xl if you're using 4.3+ Xen.

Wei.

> It is very strange. This is the first time I meet a program can run error
> with a probability.
> 
> all my file is here:
> 
> Thanks a lot.
> 
> Pengfei

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