Bug 1253373

Summary: Provide version of virt-p2v ISO based on RHEL 6
Product: Red Hat Enterprise Linux 6 Reporter: Richard W.M. Jones <rjones>
Component: libguestfsAssignee: Richard W.M. Jones <rjones>
Status: CLOSED UPSTREAM QA Contact: Virtualization Bugs <virt-bugs>
Severity: unspecified Docs Contact: Jiri Herrmann <jherrman>
Priority: unspecified    
Version: 6.8CC: ailan, juzhou, mxie, mzhan, ptoscano, tzheng, xiaodwan
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: P2V
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-01-11 14:37:32 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:
Bug Depends On:    
Bug Blocks: 1252701    

Description Richard W.M. Jones 2015-08-13 14:57:34 UTC 
Description of problem:

We now have a virt-p2v ISO based on RHEL 7 (bug 1168626).

Unfortunately this revealed a couple of fairly serious problems:

 - RHEL 7 dropped support for 32 bit i686, and so we can no longer
   use P2V to convert very old 32 bit machines.

 - RHEL 7 dropped support for cciss devices, and the cciss devices
   which are not supported by the newer hpsa driver cannot be
   converted at all (bug 1252701).  A list of such devices can be
   found here: http://man7.org/linux/man-pages/man4/cciss.4.html#DESCRIPTION

The solution to this is to provide a version of the virt-p2v
ISO which is based on RHEL 6.

This is not trivial to do, although it is not impossible.

Firstly I add a bunch of commits to virt-p2v to fix problems
on RHEL 6:

06e92bffd4b1924bf9b076e44e59d03ea7146db8
437cb7b6ffcb21a43a7368d4402228f043a62a9c
b0cd6917cac7d314e971d90747e053907b48b2f7
00bceec4216da7757acf0aa7174a99fb0b6deeb5
2bfb9ff9ea7316cfa6a62879f77f6600c91789d9
1d082d127e017d91bc493807a4a488dfa045a79c
92e155dbddaafe0cd9f0be13fc0b723522735eff
c9ad61b37b1efc5e496295117ad5d1614c3862f1

Secondly qemu-kvm on RHEL 6 does not include qemu-nbd, which is
required by virt-p2v.  Although we could modify the qemu-kvm
package to add it, I think that's a big change to our core
hypervisor this late in RHEL 6, and instead we should just
compile our own qemu-nbd and include it into the ISO.

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

I suggest we think about this for RHEL 6.8.  In the meantime
I'll distribute unofficial ISOs for testing purposes.
Comment 2 Richard W.M. Jones 2016-01-11 14:37:32 UTC 
I decided to base this on Fedora instead for a few reasons:

 - Fedora still builds 32 bit versions of qemu-nbd, kernel etc.

 - Doesn't require that we backport virt-p2v code to RHEL 6
   (so we can still use modern Gtk features)

I have built a 32 bit ISO and placed it in the usual place:

http://oirase.annexia.org/virt-p2v/

 - virt-p2v-livecd-1.32.0.fc23.iso

The Fedora virt-p2v and RHEL virt-v2v are interoperable.