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Bug 1153515 - empty (but set) LIBGUESTFS_BACKEND prints libguestfs: error: invalid backend:
Summary: empty (but set) LIBGUESTFS_BACKEND prints libguestfs: error: invalid backend:
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libguestfs
Version: 7.1
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: ---
Assignee: Richard W.M. Jones
QA Contact: Virtualization Bugs
URL:
Whiteboard: V2V
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-10-16 06:31 UTC by Richard W.M. Jones
Modified: 2015-03-05 13:46 UTC (History)
7 users (show)

Fixed In Version: libguestfs-1.27.64-1.1.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-03-05 13:46:23 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2015:0303 0 normal SHIPPED_LIVE libguestfs bug fix and enhancement update 2015-03-05 17:34:44 UTC

Description Richard W.M. Jones 2014-10-16 06:31:49 UTC 
Description of problem:

$ LIBGUESTFS_BACKEND="" guestfish -a /dev/null run
libguestfs: error: invalid backend: 
$ echo $?
0

The error should not be printed.  An empty environment
variable should use the default.

Version-Release number of selected component (if applicable):

libguestfs 1.27.62

How reproducible:

100%

Steps to Reproduce:
1. See above.
Comment 2 Richard W.M. Jones 2014-10-16 07:02:19 UTC 
Upstream fix:
https://github.com/libguestfs/libguestfs/commit/249aae0c2ffa685008c03f5d06e05c2989b1ec99

(will be in 1.27.64)
Comment 4 tingting zheng 2014-10-20 05:45:21 UTC 
Tested with:
libguestfs-1.28.1-1.1.el7.x86_64
virt-v2v-1.28.1-1.1.el7.x86_64

1.# LIBGUESTFS_BACKEND="" guestfish -a /dev/null run

2. Test with virt-v2v.
# export LIBGUESTFS_BACKEND=
# echo $LIBGUESTFS_BACKEND

# virt-v2v -ic xen+ssh://10.66.106.64 -os default rhel6.6-pv-x64-test
[   0.0] Opening the source -i libvirt -ic xen+ssh://10.66.106.64 rhel6.6-pv-x64-test
virt-v2v: error: because of libvirt bug 
https://bugzilla.redhat.com/show_bug.cgi?id=1134592 you must set this 
environment variable:

export LIBGUESTFS_BACKEND=direct

and then rerun the virt-v2v command.

If reporting bugs, run virt-v2v with debugging enabled and include the 
complete output:

  virt-v2v -v -x [...]

3.Also tested with other sets,eg:test
# LIBGUESTFS_BACKEND="test" guestfish -a /dev/null run
libguestfs: error: invalid backend: test

# export LIBGUESTFS_BACKEND="test"
# virt-v2v -ic xen+ssh://10.66.106.64 -os default rhel6.6-pv-x64-test
[   0.0] Opening the source -i libvirt -ic xen+ssh://10.66.106.64 rhel6.6-pv-x64-test
libguestfs: error: invalid backend: test
virt-v2v: error: because of libvirt bug 
https://bugzilla.redhat.com/show_bug.cgi?id=1134592 you must set this 
environment variable:

export LIBGUESTFS_BACKEND=direct

and then rerun the virt-v2v command.

If reporting bugs, run virt-v2v with debugging enabled and include the 
complete output:

  virt-v2v -v -x [...]


The error is clear,so move the bug to VERIFIED.
Comment 6 errata-xmlrpc 2015-03-05 13:46:23 UTC 
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/RHBA-2015-0303.html
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