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Bug 999749

Summary:	[RFE] should add a item to specify the backing file format when use qemu-img info to check it
Product:	Red Hat Enterprise Linux 6	Reporter:	Sibiao Luo <sluo>
Component:	qemu-kvm	Assignee:	Hanna Czenczek <hreitz>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	low	Docs Contact:
Priority:	low
Version:	6.5	CC:	acathrow, bsarathy, chayang, juzhang, kwolf, michen, mkenneth, qzhang, shu, virt-maint, xfu
Target Milestone:	rc	Keywords:	FutureFeature
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:	Cause: Consequence: Fix: Result:	Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-03-21 09:33:26 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Sibiao Luo 2013-08-22 02:44:19 UTC

Description of problem:
rhel6 have no specified the backing file format after create snapshot when use qemu-img info to check it, but rhel7.0 has it.

Version-Release number of selected component (if applicable):
host info:
2.6.32-412.el6.x86_64
qemu-kvm-rhev-0.12.1.2-2.397.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1.for rhel6.5:
# qemu-img create -f qcow2 -b data-disk.qcow2 -F qcow2 sluo-snapshot
Formatting 'sluo-snapshot', fmt=qcow2 size=10737418240 backing_file='data-disk.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 
# qemu-img info sluo-snapshot 
image: sluo-snapshot
file format: qcow2
virtual size: 10G (10737418240 bytes)
disk size: 196K
cluster_size: 65536
backing file: data-disk.qcow2
2.for rhel7.0:
# qemu-img create -f qcow2 -b data-disk.qcow2 -F qcow2 sluo-snapshot
Formatting 'sluo-snapshot', fmt=qcow2 size=1073741824 backing_file='data-disk.qcow2' backing_fmt='qcow2' encryption=off cluster_size=65536 lazy_refcounts=off 
# qemu-img info sluo-snapshot 
image: sluo-snapshot
file format: qcow2
virtual size: 1.0G (1073741824 bytes)
disk size: 196K
cluster_size: 65536
backing file: data-disk.qcow2
backing file format: qcow2           <------------------here

Actual results:

Expected results:
should add a item to specify the backing file format when use qemu-img info to check it.

Additional info:

Comment 2 Hanna Czenczek 2014-03-21 04:07:18 UTC

This is fixed for me since the backport of c054b3fd78f28b12f4d066583fc0ade017752479 (2ecf5c22465ffcfad3cad70b8c634703f0e9cfbb downstream), that is, as of version qemu-kvm-0.12.1.2-2.409.el6.

I'd propose closing this bug as WORKSFORME.

Comment 3 Kevin Wolf 2014-03-21 09:33:26 UTC

I think the usual resolution in such cases is DUPLICATE. Closing.

*** This bug has been marked as a duplicate of bug 1010610 ***