On Thu, Feb 25, 2016 at 10:26:18AM +0100, Frantisek Kluknavsky wrote:
 On 02/23/2016 08:42 PM, Richard W.M. Jones wrote:
 > On Tue, Feb 23, 2016 at 06:21:34PM +0100, Pino Toscano wrote:
 >> On Tuesday 23 February 2016 15:21:17 Richard W.M. Jones wrote:
 >>> As for the particular question about lack of /etc/fstab.  Are you
 >>> getting some kind of error when using the guestmount -i option?  It
 >>> used to be (a long time ago) that libguestfs inspection[1] could not
 >>> handle guests that did not have /etc/fstab, but that should be fixed
 >>> in recent versions.
 >>
 >> Not really: /etc/fstab is currently used [1] as criteria to detect
 >> whether the content of a partition is the root of a Linux installation.
 > 
 > Yup - you're totally right.  I was confusing that with the bug we used
 > to have if /etc/fstab was empty (RHBZ#1113156).
 > 
 > Something to fix with the new inspection code :-)
 > 
 > Rich.
 > 
 
 My intended use-case was to mount a container image that lacks kernel,
 fstab and bootloader, not a full virtual machine. Thank you very much
 for the explanation. I will try different approaches. 
There are two parts to this question.
(1) Does inspection of such a disk image work?  Answer: not at the
moment, but Pino is working on fixing that.
(2) Can you mount it anyway.  YES: You don't need inspection to mount
disk images.
Please look at my original answer in detail, especially the links I
posted.
https://www.redhat.com/archives/libguestfs/2016-February/msg00197.html
Rich.
-- 
Richard Jones, Virtualization Group, Red Hat 
http://people.redhat.com/~rjones
Read my programming and virtualization blog: 
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