March 2010 - Libguestfs - Libguestfs List Archives

[PATCH] Mac OS X: 'xdr_uint32_t' is 'xdr_u_int32_t'

by Richard W.M. Jones

After this, and adding a small hack to work around the Gnulib/setenv problem, I was able to get an appliance to boot. The actual appliance I was booting was one that I copied off a Fedora machine. However there is still some problem with vmchannel which I'm looking into, so the daemon cannot talk to the library yet. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top

14 years, 8 months

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[PATCH] Mac OS X: For PATH_MAX, include <limits.h>

by Richard W.M. Jones

And another one ... Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw

14 years, 8 months

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[PATCH 0/10] Miscellaneous patches to fix some compile problems on Mac OS X

by Richard W.M. Jones

Patches 1-6 are general code quality improvements. Note that Guido previously asked us for the ability to build libguestfs without building the appliance. Patches 7-10 are specific to Mac OS X, but shouldn't break the build for existing platforms. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones libguestfs lets you edit virtual machines. Supports shell scripting, bindings from many languages. http://et.redhat.com/~rjones/libguestfs/ See what it can do: http://et.redhat.com/~rjones/libguestfs/recipes.html

14 years, 8 months

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[PATCH 0/2] Another couple of OS X patches

by Richard W.M. Jones

With these I was able to build the library part of libguestfs. In addition to the dependencies I listed before, you also need PortableXDR. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora

14 years, 8 months

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Re: [Libguestfs] XML encoding of the registry

by Richard W.M. Jones

[CC-ing to libguestfs mailing list] You might want to try building from the tarballs. You won't need OCaml to build from the tarballs (although that is available for Mac OS X, see: http://godi.camlcity.org/). If you want to see how we build for Fedora, see: http://cvs.fedoraproject.org/viewvc/devel/libguestfs/libguestfs.spec?view... If building from git, make sure you start with the ./bootstrap script, otherwise you won't get gnulib. Generally to build from git (from a fresh clone) you would do: ./bootstrap ./autogen.sh [any configure args] make Also you'll probably want to disable the appliance/ and daemon/ directories since you will need to copy an appliance and daemon over from (eg) a Fedora or Debian box. Just remove those directories from SUBDIRS in Makefile.am. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.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. http://et.redhat.com/~rjones/virt-p2v

14 years, 8 months

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hivexml - Flattened vs. Expanded XML

by Simson Garfinkel

All, Greetings. I am new to this mailing list. We have been working with XML for digital forensics. One of the areas that we wish to create a schema for is the representation of registry entries. We are interested in hivexml as a tool for extracting the registry as an XML representation. In our discussion with possible users, we have generally come to the conclusion that it is useful to represent each XML key as a fully expanded path, rather than preserving the tree structure of the registry hive. Although this may seem verbose, it makes processing the data significantly easier. Is working with the hivexml system in a production environment? If so, do you have any thoughts on this matter? You can find an example of the digital forensics XML at: http://www.forensicswiki.org/wiki/Fiwalk Regards, Simson Garfinkel

14 years, 8 months

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[PATCH FOR DISCUSSION ONLY] Allow setting of user:group for qemu subprocess.

by Richard W.M. Jones

This is an experimental (not working) patch which would allow you to set the user and group of the qemu process, assuming the main program is running as root. The reason for this is to allow access as root to disk images which are located on "root-squashed" NFS volumes. This is a particular concern for virt-v2v. The most immediate problem with the patch (which can be fixed easily) is that the non-root qemu cannot access the appliance: qemu: could not load kernel '/tmp/libguestfsj2CItc/kernel': Permission denied In terms of the bigger picture I'm not convinced that this patch is really going to be useful. Firstly various commands currently try to access the disk image from the main process (notably guestfs_add_drive). Secondly any serious program using libguestfs will want to touch the disk image elsewhere, so the root-squashing problem will have to be tackled there too. It sounds as if for virt-v2v the whole program should just setuid itself to a non-root user as early as possible, rather than pushing this into libguestfs. On the other hand, not running qemu as root even when libguestfs itself is root, is an appealing idea if the permissions issues could be resolved. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.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. http://et.redhat.com/~rjones/virt-p2v

14 years, 8 months

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[PATCH] Change some _exit(0|1) to _exit(EXIT_SUCCESS|EXIT_FAILURE).

by Richard W.M. Jones

-- Richard Jones, Virtualization Group, Red Hat http://people.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. http://et.redhat.com/~rjones/virt-p2v

14 years, 8 months

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[PATCH 0/2] Add API for querying the relationship between LVM objects

by Richard W.M. Jones

Currently I found it it's hard to determine the relationship between LVM objects, by which I mean "what PVs contain a VG?", or "what LVs are contained in a VG?" This simple API exposes that to callers. {lv,vg,pv}uuid: Return the UUID of an LVM object. You can already get this using (eg.) lvs_full, but this is a lot less faffing around. vg{lv,pv}uuids: Return the LVs belonging to a VG, or the PVs containing a VG. It returns them as UUIDs, so if you build up a map using the previous calls, then you can map them back to names, or keep them as UUIDs as required. There's an example Perl program included which demonstrates how to do this. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top

14 years, 8 months

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Proposed virt-resize tool (manual page)

by Richard W.M. Jones

I like to write documentation before I write the actual programs. This is a proposed new tool to handle resizing virtual machines which has been requested by a couple of users. Let me know what you think of the features (ones included and any others you need), command line usability, etc. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 80 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora

14 years, 8 months

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Libguestfs March 2010