i want to do it remotely through command :

although if i use python language the thing works for me you can see the python code

>>> import guestfs

>>> g = guestfs.GuestFS (python_return_dict=True)

>>> g.add_drive_opts ("/dev/null", readonly=1)

>>> g.config('-set', "drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img")

>>>

>>> g.launch()

>>> g.inspect_os()

['/dev/ubuntu-1204-vg/root']

>>> g.inspect_get_distro('/dev/ubuntu-1204-vg/root')

'ubuntu'

but when i try to do the same from command line it failed:

firstly i run command

guestfish -- add /dev/null : config -set drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img : run : inspect-os

this is returning me :

/dev/ubuntu-1204-vg/root

when i pass this output to get-distro , it failed

guestfish -- add /dev/null : config -set drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img : run : inspect-get-distro /dev/ubuntu-1204-vg/root

libguestfs: error: no inspection data: call guestfs_inspect_os first

this time i have called run

Regards

Shumaila Naeem

On Fri, Mar 14, 2014 at 12:59 PM, Richard W.M. Jones <rjones@redhat.com> wrote:

On Fri, Mar 14, 2014 at 12:47:08PM +0500, Shumaila Naeem wrote:
> Also i can't use the newest version of libguestfs as im on a production
> system and i could not use the newest version due to some limitations.

You can use the new version without installing it. However you would
need to be able to install a compiler and other dependencies, which
may not be possible on a production system.

> Also the new version is not available in repo.
>
>
>
> Im getting antother problem :
>
> while running these commands im getting error :
> guestfish -- add /dev/null : config -set
> drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img : run :
> inspect-os
> /dev/ubuntu-1204-vg/root
> [root@EQkvm0101 ~]# guestfish -- add /dev/null : config -set
> drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img :
> inspect-get-distro /dev/ubuntu-1204-vg/root
> libguestfs: error: no inspection data: call guestfs_inspect_os first

You have to call inspect-os, and pass the returned value back to
inspect-get-distro. This is (to say the least) awkward in guestfish,
but much easier if you use a real programming language (libguestfs has
many language bindings, see http://libguestfs.org). Also you are
missing a call to 'run'.

Here's how you could do it in Perl:

------------------------------------------------------------
#!/usr/bin/perl -w

use strict;
use Sys::Guestfs;

my $g = Sys::Guestfs->new ();
$g->add_drive_opts ("/dev/null", readonly => 1);
# RHEL 6 hack for adding Ceph drives:
$g->config ("-set",
"drive.hd0.file=rbd:ssd-clonetest-rule5/ubuntu-12.04--1.raw.img");
$g->launch ();

my @roots = $g->inspect_os ();
if (@roots == 0) {
die "no operating systems found";
}
my $root = $roots[0];
my $distro = $g->inspect_get_distro ($root);
print "distro = $distro\n";
------------------------------------------------------------

Rich.

--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming blog: http://rwmj.wordpress.com
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