libvirt
307
4.19. libvirt
Problem Description: The libvirt library is a C API for managing and interacting with the virtualization
capabilities of Linux and other operating systems. In addition, libvirt provides tools for remotely
managing virtualized systems.
• Volumes created using the libvirt storage API may not have an SELinux label that allows access
by virtual machines. If an SELinux AVC denial is reported when starting a Xen or KVM guest, the
adminstrator should either manually relabel the file/device, or add the file path(s) as rule to the
SELinux policy using the 'semanage' tool.
(BZ#510143)
90
4.20. lvm2
The lvm2 package contains support for Logical Volume Management (LVM).
The following are the Known Issues that apply to the lvm2 packages in Red Hat Enterprise Linux 5.4
• The
lvchange
command is used to change the attributes of a logical volume. Issuing the
lvchange
command on a volume group that contains a mirror or snapshot may result in messages
similar to the following:
Unable to change mirror log LV fail_secondary_mlog directly
Unable to change mirror image LV fail_secondary_mimage_0 directly
Unable to change mirror image LV fail_secondary_mimage_1 directly
These messages can be safely ignored.
(BZ#232499)
91
4.21. mesa
Mesa provides a 3D graphics API that is compatible with OpenGL. It also provides hardware-
accelerated drivers for many popular graphics chips.
The following note applies to x86_64 Architectures:
• On an
IBM T61
laptop, Red Hat recommends that you refrain from clicking the
glxgears
window
(when
glxgears
is run). Doing so can lock the system.
To prevent this from occurring, disable the tiling feature. To do so, add the following line in the
Device
section of
/etc/X11/xorg.conf
:
Option "Tiling" "0"
(BZ#444508)
92
4.22. mkinitrd
The mkinitrd utility creates file system images for use as initial ramdisk (initrd) images.
• When using an encrypted device, the following error message may be reported during bootup:
Summary of Contents for ENTERPRISE 5.4 RELEASE NOTES
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