[fedora-virt] ANNOUNCE: virt-inspector
Richard W.M. Jones
rjones at redhat.com
Tue May 19 14:23:41 UTC 2009
Hi, I'm pleased to announce the first 'really working' version of
Source is in the libguestfs source repository:
Binaries are in Koji for Fedora 11 / Rawhide:
(minimum version 1.0.27 required)
This is a tool based around libguestfs which can inspect a virtual
machine disk image and tell you some interesting things about what's
Some of the things it can tell you:
- What operating system(s) are installed, and what distros and versions.
It currently covers RHEL releases, Fedora releases, Debian releases,
and has limited support for Windows.
- How disk partitions are expected to be mounted (eg. /dev/sda1 -> /boot)
- What applications are installed.
- What kernel(s) are installed.
- What kernel modules are installed.
It can produce output in plain text (as a report) or in XML (to feed
into other programs).
It uses libvirt (if available) to get details of inactive domains, or
you can run it directly on disk images.
Usage is simple:
virt-inspector --xml domain > info.xml # xml report
virt-inspector /path/to/disk.img | less # plain text report
You can also use it as a wrapper for guestfish, so it mounts the guest
disks in the correct places, eg:
$ virt-inspector --fish /dev/Guests/CentOS5.img
guestfish -a /dev/Guests/CentOS5.img -m /dev/VolGroup00/LogVol00:/ -m /dev/sda1:/boot
$ eval `virt-inspector --fish /dev/Guests/CentOS5.img`
Welcome to guestfish, the libguestfs filesystem interactive shell for
editing virtual machine filesystems.
Type: 'help' for help with commands
'quit' to quit the shell
><fs> ll /boot/
drwxr-xr-x 4 root root 1024 May 11 18:16 .
drwxr-xr-x 22 root root 4096 May 19 05:06 ..
-rw-r--r-- 1 root root 931546 May 7 11:05 System.map-2.6.18-128.1.10.el5
-rw-r--r-- 1 root root 931457 Jan 21 11:10 System.map-2.6.18-128.el5
-rw-r--r-- 1 root root 67942 May 7 11:05 config-2.6.18-128.1.10.el5
-rw-r--r-- 1 root root 67937 Jan 21 11:10 config-2.6.18-128.el5
- Lots of testing, particularly with different guests.
- Answer higher-level questions, eg. "what network drivers will this
guest use?" "does this guest need a Xen hypervisor?"
- Generate a libvirt XML config file (partly overlaps the functionality
of new 'virsh import|export*' functions:
Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into Xen guests.
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