[Users] issue with conversion of ESXi 5 centos VM to fedora19 ovirt host

[Richard W.M. Jones]

On Fri, Jan 10, 2014 at 12:48:43PM -0500, Madhav V Diwan wrote:
> 
> Sorry richard 
> 
> seems that it failed even when i tried to set that variable
> 
> Maybe i set up the command incorrectly?
> 
> here is what i ran
> 
> 
> [root at server3 ~]# cat convrtesxhost.sh
> 
> #!/bin/bash
> 
> export LIBGUESTFS_TRACE=1 
> export LIBGUESTFS_DEBUG=1
> export LIBGUESTFS_BACKEND=direct
> 
> virt-v2v -ic esx://ESX.decllc.biz/?no_verify=1 -o rhev -os
> server3.decllc.biz:/localstorage/nfs --network ovirtmgmt razDC  2>&1 |
> tee /var/log/virt-v2v.log 

It looks like this is correctly setting the environment variable:

> [root at server3 ~]# ./convrtesxhost.sh 
> virt-v2v: Transferring storage volume razDC_razDC: 107374182400 bytes
> libguestfs: trace: set_verbose true
> libguestfs: trace: set_verbose = 0
> libguestfs: trace: set_backend "direct"
> libguestfs: trace: set_backend = 0

^ see that it's set correctly here.

[...]
> libguestfs: trace: add_drive
> "/tmp/dgsXFuqz0X/8eff2927-3bff-4b15-bdd0-8c4e0f40652d/v2v.nCJ17ysL/e1660d18-b67b-4002-9835-10c654e7ee0e/a7afe4c5-ece8-4022-a8ec-964984a8db17" "format:raw" "iface:ide" "name:sda"
> libguestfs: trace: add_drive = -1 (error)
> /tmp/dgsXFuqz0X/8eff2927-3bff-4b15-bdd0-8c4e0f40652d/v2v.nCJ17ysL/e1660d18-b67b-4002-9835-10c654e7ee0e/a7afe4c5-ece8-4022-a8ec-964984a8db17: Permission denied at /usr/lib64/perl5/vendor_perl/Sys/Guestfs.pm line 670.

So this is not the bug I was thinking of.

(In fact it's obvious now I look closer.  This has nothing to do with
libvirt, and the error message is being generated by libguestfs
earlier on)

Is there some other reason that libguestfs would not be able to open
that file in /tmp?  Perhaps there is an SELinux AVC?  Or /tmp has
strange permissions ...?  Is /tmp a tmpfs mount?

I believe the actual code path you're hitting is this one:

https://github.com/libguestfs/libguestfs/blob/stable-1.22/src/drives.c#L660

I'm not exactly sure why that fails.

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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