August 2010 - Libguestfs - libguestfs List Archives

[REPOST] guestfsd core capture, and virt-rescue clean shutdown
by Matthew Booth 26 Aug '10

26 Aug '10

This is a repost of a previously posted set. It's been updated following review comments. [PATCH 1/4] Add a core_pattern debug command Added missing return statements. [PATCH 2/4] Call sync after guestfsd exits Remove redundant sleep 1; sync [PATCH 3/4] Shut down the appliance cleanly [PATCH 4/4] Ignore launch() error in virt-rescue These were previously 2 patches. They are otherwise unchanged.

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[PATCH] Fix build failure caused by 4b753c62
by Matthew Booth 24 Aug '10

24 Aug '10

4b753c62089be663ac722e4a875bb061d259e87d missed a couple of uses of print_timestamped_message in launch.c. --- src/launch.c | 6 +++--- 1 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/launch.c b/src/launch.c index 9deb0cf..07a89ec 100644 --- a/src/launch.c +++ b/src/launch.c @@ -927,7 +927,7 @@ build_supermin_appliance (guestfs_h *g, const char *path, int r, len; if (g->verbose) - print_timestamped_message (g, "begin building supermin appliance"); + guestfs___print_timestamped_message (g, "begin building supermin appliance"); len = strlen (g->tmpdir); *kernel = safe_malloc (g, len + 8); @@ -950,7 +950,7 @@ build_supermin_appliance (guestfs_h *g, const char *path, path, *kernel, *initrd); if (g->verbose) - print_timestamped_message (g, "%s", cmd); + guestfs___print_timestamped_message (g, "%s", cmd); r = system (cmd); if (r == -1 || WEXITSTATUS(r) != 0) { @@ -962,7 +962,7 @@ build_supermin_appliance (guestfs_h *g, const char *path, } if (g->verbose) - print_timestamped_message (g, "finished building supermin appliance"); + guestfs___print_timestamped_message (g, "finished building supermin appliance"); return 0; } -- 1.7.2.2

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Note: /download/ directory reorganized
by Richard W.M. Jones 24 Aug '10

24 Aug '10

I reorganized the download directory to make it a bit less confusing: http://libguestfs.org/download/ Unfortunately this breaks all previous source URLs: old: http://libguestfs.org/download/libguestfs-1.5.4.tar.gz new: http://libguestfs.org/download/1.5-development/libguestfs-1.5.4.tar.gz Also I'm going to put some binaries in this directory later today, for people not using Fedora who don't want to compile from source: http://libguestfs.org/download/binaries/ 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

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[PATCH] New APIs: set-network and get-network to enable network support.
by Richard W.M. Jones 24 Aug '10

24 Aug '10

-- 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

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[PATCH] Change protocol to send Linux errno from daemon to library.
by Richard W.M. Jones 24 Aug '10

24 Aug '10

-- 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

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[PATCH] Don't print debug messages when not in verbose mode.
by Richard W.M. Jones 24 Aug '10

24 Aug '10

-- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/

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[PATCH] Raise error message max size to 64K.
by Richard W.M. Jones 24 Aug '10

24 Aug '10

-- 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

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[PATCH] Use virtio-serial, remove other vmchannel methods.
by Richard W.M. Jones 24 Aug '10

24 Aug '10

Notes: (1) Tis doesn't completely remove legacy serial ports yet. I couldn't work out how to make the Linux kernel see the virtconsole, so that is still using a serial port. (2) The guest network is completely unavailable if you apply this patch. We will need to add this back, possibly as an optional feature. 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

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[PATCH] Change to using ext2-based, cached supermin appliance.
by Richard W.M. Jones 23 Aug '10

23 Aug '10

This patch changes libguestfs to use the ext2-based appliance, cached if possible. I've tested this with the alpha version of febootstrap from here: http://koji.fedoraproject.org/koji/buildinfo?buildID=191338 and it at least passes the tests. There are some hacky bits right now: (1) We add the root -drive option last on the command line, then (in the initrd) reverse-search through the block devices, mounting the first one we find. Dan pointed out that we could name the drive using the qemu '-drive file=..,serial=LIBGUESTFSROOT' option, which would allow unambiguous identification. However there are other issues with this. (2) We take steps to ignore the new device from the point of view of the user, but I haven't rigorously gone through the whole API to check that the device is truly hidden everywhere. 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

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Proposed new file apis
by Matthew Booth 23 Aug '10

23 Aug '10

I've attached a patch to generator.ml for the proposed new file apis. Note that hread, hpread, hwrite and hpwrite are slightly different to the apis I proposed previously. I've also added hallocate for good measure. Matt -- Matthew Booth, RHCA, RHCSS Red Hat Engineering, Virtualisation Team GPG ID: D33C3490 GPG FPR: 3733 612D 2D05 5458 8A8A 1600 3441 EA19 D33C 3490

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