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Chapter 36. Virtualization

SeaBIOS recognizes SCSI devices with a non-zero LUN

Previously, SeaBIOS only recognized SCSI devices when the logical unit number (LUN) was set to zero. Consequently, if a SCSI device was defined with a LUN other than zero, SeaBIOS failed to boot. With this update, SeaBIOS recognizes SCSI devices with LUNs other than zero. As a result, SeaBIOS boots successfully. (BZ#1020622)

The libguestfs tools now correctly handle guests where /usr/ is not on the same partition as root

Previously, the libguestfs library did not recognize the guest operating system when the /usr/ directory was not located on the same partition as the root directory. As a consequence, multiple libguestfs tools, such as the virt-v2v utility, did not perform as expected when used on such guests. This update ensures that libguestfs recognizes guest operating systems when /usr/ is not on the same partition as root. As a result, the affected libguestfs tools perform as expected. (BZ#1401474)

virt-v2v can convert Windows guests with corrupted or damaged Windows registries

Previously, the hivex library used by libguestfs to manipulate the Windows registry could not handle corrupted registries. Consequently, the virt-v2v utility was not able to convert Windows guests with corrupted or damaged Windows registries. With this update, libguestfs configures hivex to be less strict when reading the Windows registry. As a result, virt-v2v can now convert most Windows guests with corrupted or damaged Windows registries. (BZ#1311890, BZ#1423436)

Converting Windows guests with non-system dynamic disks using virt-v2v now works correctly

Previously, using the virt-v2v utility to convert a Windows guest virtual machine with non-system dynamic disks did not work correctly, and the guest were not usable after the conversion. This update fixes the underlying code and thus prevents the described problem.
Note that the conversion of Windows guests using dynamic disks on the system disk (C: drive) is still not supported. (BZ#1265588)

Guests can be converted to Glance images, regardless of the Glance client version

Previously, if the Glance command-line client version 1.0.0 or greater was installed on the virt-v2v conversion server, using the virt-v2v utility to convert a guest virtual machine to a Glance image failed. With this release, when exporting images, virt-v2v directly sets all the properties of images. As a result, the conversion to Glance works regardless of the version of the Glance client installed on the virt-v2v conversion server. (BZ#1374405)

Red Hat Enterprise Linux 6.2 - 6.5 guest virtual machines can now be converted using virt-v2v

Previously, an error in the SELinux file_contexts file in Red Hat Enterprise Linux versions 6.2 - 6.5 prevented conversion of these guests using the virt-v2v utiltiy. With this update, virt-v2v automatically fixes the error in the SElinux file_contexts file. As a result, Red Hat Enterprise Linux 6.2-6.5 guest virtual machines can now be converted using virt-v2v. (BZ#1374232)

Btrfs entries in /etc/fstab are now parsed correctly by libguestfs

Previously, Btrfs sub-volume entries with more than one comma-separated option in /etc/fstab were not parsed properly by libguestfs. Consequently, Linux guest virtual machines with these configurations could not be inspected, and the virt-v2v utility could not convert them. With this update, libguestfs parses Btrfs sub-volume entries with more than one comma-separated option in /etc/fstab correctly. As a result, these entries can be inspected and converted by virt-v2v. (BZ#1383517)

libguestfs can now correctly open libvirt domain disks that require authentication

Previously, when adding disks from a libvirt domain, libguestfs did not read any disk secrets. Consequently, libguestfs could not open disks that required authentication. With this update, libguestfs reads secrets of disks in libvirt domains, if present. As a result, libguestfs can now correctly open disks of libvirt domains that require authentication. (BZ#1392798)

Converted Windows UEFI guests boot properly

Previously, when converting Windows 8 UEFI guests, virtio drivers were not installed correctly. Consequently, the converted guests did not boot. With this update, virtio drivers are installed correctly in Windows UEFI guests. As a result, converted Windows UEFI guests boot properly. (BZ#1431579)

The virt-v2v utility now ignores proxy environment variables consistently

Prior to this update, when using the virt-v2v utility to convert a VMware guest virtual machine, virt-v2v used the proxy environment variables for some connections to VMware, but not for others. This in some cases caused conversions to fail. Now, virt-v2v ignores all proxy environment settings during the conversion, which prevents the described problem. (BZ#1354507)

virt-v2v only copies rhev-apt.exe and rhsrvany.exe when needed

Previously, virt-v2v always copied the rhev-apt.exe and rhsrvany.exe files when converting Windows guests. Consequently, they were present in the converted Windows guests, even when they were not needed. With this update, virt-v2v only copies these files when they are needed in the Windows guest. (BZ#1161019)

Guests with VLAN over a bonded interaface no longer stop passing traffic after a failover

Previously, on guest virtual machines with VLAN configured over a bonded interface that used ixgbe virtual functions (VFs), the bonded network interface stopped passing traffic when a failover occurred. The hypervisor console also logged this error as a requested MACVLAN filter but is administratively denied message. With this update ensures that failovers are handled correctly and thus prevents the described problem. (BZ#1379787)

virt-v2v imports OVAs that do not have the <ovf:Name> attribute

Previously, the virt-v2v utility rejected the import of Open Virtual Appliances (OVAs) without the <ovf:Name> attribute. As a consequence, the virt-v2v utility did not import OVAs exported by Amazon Web Services (AWS). In this release, if the <ovf:Name> attribute is missing, virt-v2v uses the base name of the disk image file as the name of the virtual machine. As a result, the virt-v2v utility now imports OVAs exported by AWS. (BZ#1402301)