May 2010 - Libguestfs - Libguestfs List Archives

NOTE: febootstrap 2.7 is *required* for dev versions of libguestfs

by Richard W.M. Jones

Since I pushed this commit: http://git.annexia.org/?p=libguestfs.git;a=commitdiff;h=8700a55d52f25f60f... febootstrap >= 2.7 is now *required* for all future development versions of libguestfs, ie. versions from git or >= 1.3.12 tarballs. You can get febootstrap 2.7 from here: http://people.redhat.com/~rjones/febootstrap/files/ and there are Koji builds for Rawhide only (at the moment) here: http://koji.fedoraproject.org/koji/packageinfo?packageID=8170 febootstrap itself should be backwards compatible with previous releases, so you can update febootstrap without updating libguestfs if you want. Similarly you should be able to update febootstrap and run both stable and development versions of libguestfs. Rich. -- 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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Emailing: 0002-use-single-registry-change-for-all-supported-windows.patch

by Amos Benari

if it works thank god for notepad2 (If it's not then be patience, I am just a windows user). Amos.

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[PATCH febootstrap] Pull in febootstrap-supermin-helper (C version) from libguestfs.

by Richard W.M. Jones

This patch is FYI as it needs more testing, although feel free to take a look at it if you want. Background: We'd like to change libguestfs so that the appliance can support optional features. This would mean you could have (for example) a 'libguestfs' base package and a 'libguestfs-xfs' package providing optional support for XFS filesystem tools. This would only apply to the supermin case. Currently the supermin appliance is built out of 3 files: $ ls -1 /usr/lib64/guestfs/ initramfs.fedora-12.x86_64.supermin.hostfiles # text file containing wildcards of files picked up from # the host at runtime initramfs.fedora-12.x86_64.supermin.img # base appliance data (cpio file) kmod.whitelist # text file containing wildcards matching kernel modules There are a number of problems with this: (1) The files have fixed names. (2) The names are rather obscure. (3) You can't have optional appliance modules. The idea would be to replace this with a scheme where the supermin builder looks in a directory and picks out all the files it needs from there. It would look something like: $ ls -1 /usr/lib64/guestfs/supermin.d/ base.img hostfiles optional-xfs.img # installed by libguestfs-xfs package optional-zfs.img # installed by libguestfs-zfs package (Similarly the kernel module whitelist could point to a directory, but we don't need that now and aren't implementing that right away). At the same time we have for a while been maintaining some significant duplicate functionality in febootstrap, cf: http://git.annexia.org/?p=libguestfs.git;a=blob;f=appliance/supermin-spli... http://git.annexia.org/?p=febootstrap.git;a=blob;f=febootstrap-to-supermi... and: http://git.annexia.org/?p=libguestfs.git;a=blob;f=appliance/libguestfs-su... http://git.annexia.org/?p=febootstrap.git;a=blob;f=febootstrap-supermin-h... Since this is a major change to the way the appliance is built, it makes sense at the same time to fold everything into febootstrap and drop the custom libguestfs/appliance/*supermin* scripts. This patch is the first part of this plan, porting the relevant functionality from libguestfs into febootstrap. 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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Emailing: 0001-use-one-registry-key-set-for-all-windows-releases.patch

by Amos Benari

Maybe this time I got the patch right. Amos.

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FW: Emailing: Windows.pm

by Amos Benari

It assumes using the RHSrvAny packed with rhevm (with service name 'rhev-apt'). It uses the same registry keys for all windows version supported (XP, 2k3, 2k8 and 7). Amos.

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[PATCH] guestfish -i and virt-inspector work on filenames containing spaces (RHBZ#507810).

by Richard W.M. Jones

-- 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] fish: Fix guestfish -N option when called with unknown image type.

by Richard W.M. Jones

-- 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] Improved error if virt-inspector cannot find OSes in image (RHBZ#591142).

by Richard W.M. Jones

-- 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] Fix error message in string-e command (RHBZ#588651).

by Richard W.M. Jones

-- 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] Fix import of RHEL 3 kvm guests using kmod-virtio

by Matthew Booth

RHEL 3 doesn't have a dynamic /dev. kmod-virtio creates devices nodes for vdX block devices based on what the major number of virtblk was at the time it was installed. This is, in turn, based on the order the modules were loaded in initrd. To try to preserve this precarious state of affairs, when adding virtio drivers to a new initrd we always load the same drivers as kmod-virtio in the same order. --- lib/Sys/VirtV2V/Converter/Linux.pm | 8 +++++++- lib/Sys/VirtV2V/GuestOS/RedHat.pm | 8 ++++---- 2 files changed, 11 insertions(+), 5 deletions(-) diff --git a/lib/Sys/VirtV2V/Converter/Linux.pm b/lib/Sys/VirtV2V/Converter/Linux.pm index df7c969..6c50cd1 100644 --- a/lib/Sys/VirtV2V/Converter/Linux.pm +++ b/lib/Sys/VirtV2V/Converter/Linux.pm @@ -332,7 +332,13 @@ sub _configure_boot my ($guestos, $kernel, $virtio) = @_; if($virtio) { - $guestos->prepare_bootable($kernel, "virtio_pci", "virtio_blk"); + # The order of modules here is deliberately the same as the order + # specified in the postinstall script of kmod-virtio in RHEL3. The + # reason is that the probing order determines the major number of vdX + # block devices. If we change it, RHEL 3 KVM guests won't boot. + $guestos->prepare_bootable($kernel, "virtio", "virtio_ring", + "virtio_blk", "virtio_net", + "virtio_pci"); } else { $guestos->prepare_bootable($kernel, "sym53c8xx"); } diff --git a/lib/Sys/VirtV2V/GuestOS/RedHat.pm b/lib/Sys/VirtV2V/GuestOS/RedHat.pm index 8b211f0..af64dfa 100644 --- a/lib/Sys/VirtV2V/GuestOS/RedHat.pm +++ b/lib/Sys/VirtV2V/GuestOS/RedHat.pm @@ -1381,10 +1381,10 @@ sub prepare_bootable # Backup the original initrd $g->mv("$initrd", "$initrd.pre-v2v"); - # Create a new initrd which preloads the required kernel modules - my @preload_args = (); + # Create a new initrd which probes the required kernel modules + my @module_args = (); foreach my $module (@modules) { - push(@preload_args, "--preload=$module"); + push(@module_args, "--with=$module"); } # mkinitrd reads configuration which we've probably changed @@ -1407,7 +1407,7 @@ sub prepare_bootable $g->modprobe("loop"); }; - $g->command(["/sbin/mkinitrd", @preload_args, $initrd, $version]); + $g->command(["/sbin/mkinitrd", @module_args, $initrd, $version]); } # Disable kudzu in the guest -- 1.6.6.1

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Libguestfs May 2010