Re: [Libguestfs] --rbd volume access--
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
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