Bug#837681: debug output (Re: diffoscope: 'ERROR guestfs can't be launched' when trying to compare to qubes ISOs)

[HW42]

Holger Levsen:
> On Thu, Sep 15, 2016 at 02:58:00PM +0000, HW42 wrote:
>> It fails to find a kernel for the VM image it creates on the fly:
> 
> ah, wow.
> 
>> diffoscope-qubes-debug:
>>> supermin: failed to find a suitable kernel (host_cpu=x86_64).
>>>
>>> I looked for kernels in /boot and modules in /lib/modules.
>>>
>>> If this is a Xen guest, and you only have Xen domU kernels
>>> installed, try installing a fullvirt kernel (only for
>>> supermin use, you shouldn't boot the Xen guest with it).
>>> libguestfs: trace: launch = -1 (error)
>>> 1473930826.096060    ERROR guestfs can't be launched
>>
>> On what kind of VM is this run, and what kernels are installed?
> 
> 3.16.0-4-amd64 is the kernel (so jessie standard), and the host this is
> running on is a profitbricks VM, so running on kvm.

I assume you have this kernel only installed on the VM not the chroot.
So try installing linux-image-amd64 _inside_ the chroot.

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