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_libguestfs_ now identifies operating systems in virtual machines where `/usr/` is not in the same partition as `/`
Previously, _libguestfs_ did not recognize guest operating systems where the `/usr/` directory was not in the same partition as `/`. As a result, _libguestfs_ tools such as *virt-sysprep* did not perform as expected. With this update, _libguestfs_ recognizes guest operating systems even when the `/usr/` directory is not located in the same partition as `/`. Consequently, _libguestfs_ tools such as *virt-sysprep* perform as expected.
Created attachment 1213796[details]
virt-sysprep -a -v output for the failed case.
Description of problem:
This is a bug for RHEL6, which has the same issue with BZ 1318440.
Version-Release number of selected component (if applicable):
libguestfs-1.20.11-17.el6.x86_64
How reproducible:
1. Install a RHEL7 VM guest, in RHEL6 kvm host.
2. During installation, set `/usr` as a separated partition/LV.
3. Perform `virt-sysprep` in rhel6.
Actual results:
~~~
# virt-sysprep -a /home/vm/feichashao_RHEL72_ks_sysprep.qcow2
Examining the guest ...
virt-sysprep: no operating systems were found in the guest image
~~~
Expected results:
~~~
# virt-sysprep -a /home/vm/feichashao_RHEL72_ks_sysprep_nousr-corrupt.qcow2
Examining the guest ...
Performing "yum-uuid" ...
Performing "utmp" ...
Performing "udev-persistent-net" ...
Performing "tmp-files" ...
Performing "sssd-db-log" ...
Performing "ssh-userdir" ...
...........
~~~
Additional info:
1. Attached debug log of `virt-sysprep -a xxx -v` for the failed case.
2. Customer need to create/run RHEL7 guests on RHEL6 hosts, so customer need this tool to make templates.
Comment 1Richard W.M. Jones
2016-10-25 10:03:54 UTC
(In reply to Richard W.M. Jones from comment #1)
> For RHEL 6 (this bug) the patch seems backport-able. I'll see
> what Pino thinks because he is RHEL 6 maintainer.
Yes, the patch for the inspection API is easy enough.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2017-0564.html