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

[Matthew Booth]

On 10/01/14 18:53, Richard W.M. Jones wrote:
> 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.

/tmp is a red herring here. virt-v2v creates a temporary mount point for
the export storage domain in /tmp, and then writes to it directly.
Specifically, in this case /tmp/dgsXFuqz0X is a temporary mount point.
virt-v2v doesn't require any significant temporary storage in this case

I still think that the problem is likely to be nfs permissions. Could
you please try the following, as root, on the virt-v2v box:

Prep: If none already exists, create user with uid:gid = 36:36.

# mkdir /tmp/ovirt-mount
# mount <ovirt-server:/path/to/export> /tmp/ovirt-mount
# su - <36 user>
$ cd /tmp/ovirt-mount/8eff2927-3bff-4b15-bdd0-8c4e0f40652d
$ ls
$ touch foo
$ rm foo

Tidy up by deleting your temporary user and group if you created one.

Do you hit any errors doing the above?

Matt
-- 
Matthew Booth, RHCA, RHCSS
Red Hat Engineering, Virtualisation Team

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