Somewhere out there! » ubuntu http://stateless.geek.nz Mon, 06 Feb 2012 01:01:07 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Bookmarks for February 3rd through February 4th http://stateless.geek.nz/2012/02/04/bookmarks-for-february-3rd-through-february-4th/ http://stateless.geek.nz/2012/02/04/bookmarks-for-february-3rd-through-february-4th/#comments Sat, 04 Feb 2012 09:00:43 +0000 Nicholas Lee http://stateless.geek.nz/?p=950 These are my links for February 3rd through February 4th:

]]> http://stateless.geek.nz/2012/02/04/bookmarks-for-february-3rd-through-february-4th/feed/ 0 Bookmarks for January 14th through January 22nd http://stateless.geek.nz/2012/01/22/bookmarks-for-january-14th-through-january-22nd/ http://stateless.geek.nz/2012/01/22/bookmarks-for-january-14th-through-january-22nd/#comments Sun, 22 Jan 2012 04:00:30 +0000 Nicholas Lee http://stateless.geek.nz/?p=928 These are my links for January 14th through January 22nd:

]]> http://stateless.geek.nz/2012/01/22/bookmarks-for-january-14th-through-january-22nd/feed/ 0 Bookmarks for January 9th through January 11th http://stateless.geek.nz/2012/01/11/bookmarks-for-january-9th-through-january-11th/ http://stateless.geek.nz/2012/01/11/bookmarks-for-january-9th-through-january-11th/#comments Tue, 10 Jan 2012 13:00:14 +0000 Nicholas Lee http://stateless.geek.nz/?p=909 These are my links for January 9th through January 11th:

]]> http://stateless.geek.nz/2012/01/11/bookmarks-for-january-9th-through-january-11th/feed/ 0 Bookmarks for June 20th through December 13th http://stateless.geek.nz/2011/12/13/bookmarks-for-june-20th-through-december-13th/ http://stateless.geek.nz/2011/12/13/bookmarks-for-june-20th-through-december-13th/#comments Tue, 13 Dec 2011 01:27:31 +0000 Nicholas Lee http://stateless.geek.nz/?p=848 These are my links for June 20th through December 13th:

]]> http://stateless.geek.nz/2011/12/13/bookmarks-for-june-20th-through-december-13th/feed/ 0 Lucid libvirt http://stateless.geek.nz/2011/12/13/lucid-libvirt/ http://stateless.geek.nz/2011/12/13/lucid-libvirt/#comments Tue, 13 Dec 2011 01:23:07 +0000 Nicholas Lee http://stateless.geek.nz/?p=873 Lucid does not seem to work well with libvirt/kvm, there are several bugs that seem to be fixed in Maverick but not in Lucid.

From syslog:

error : qemuSetupCgroup:1955 : Unable to create cgroup for DOMAIN: No such file or directory
error : qemuRemoveCgroup:2045 : internal error Unable to find cgroup for DOMAIN#012

Re: [libvirt] FYI, “Unable to create cgroup for …”

This is a bug in systemd. It periodically scans all mounted cgroups
and deletes any directories which don’t contain any attached processes.
Needless to say this breaks libvirt, and possibly other apps, which
don’t expect 3rd parties to be deleting their directories.

https://bugzilla.redhat.com/show_bug.cgi?id=678555

Best solution for this that I’ve found on lucid is: Bug 696218 – Unable to create cgroup: No such file or directory

I was able to solve it by modifying the configuration in the file
/etc/libvirt/qemu.conf: 

 cgroup_controllers = [ ]

setgid, setuid needed by /etc/apparmor.d/abstractions/libvirt-qemu

=== modified file 'apparmor.d/abstractions/libvirt-qemu'
--- apparmor.d/abstractions/libvirt-qemu 2010-04-30 15:33:20 +0000
+++ apparmor.d/abstractions/libvirt-qemu 2010-05-12 17:26:56 +0000
@@ -8,6 +8,8 @@
   capability dac_override,
   capability dac_read_search,
   capability chown,
+ capability setgid,
+ capability setuid,

Libvirt/kvm permissions/ownership issue on upgrade from Karmic to Lucid and error: operation failed: failed to retrieve chardev info in qemu with ‘indev’

libvirtError: internal error unable to start guest: libvir: QEMU
error : cannot set ownership

or 

 error: operation failed: failed to retrieve chardev info in qemu with 'indev'

Add the following to /etc/libvirt/qemu.conf:

# The user ID for QEMU processes run by the system instance
#user = "libvirt-qemu"
user = "root"

# The group ID for QEMU processes run by the system instance
group = "kvm"

map serial port throws “chardev: opening backend “tty” failed”

There seems to be a problem with the apparmor profile of libvirt (see bug #54579). After adding the line to /etc/apparmor.d/abstractions/libvirt-qemu and reloading the profile it worked for me.

/dev/ttyS* rw,

Few other links:

]]> http://stateless.geek.nz/2011/12/13/lucid-libvirt/feed/ 0 Bookmarks for May 31st through June 3rd http://stateless.geek.nz/2011/06/03/bookmarks-for-may-31st-through-june-3rd/ http://stateless.geek.nz/2011/06/03/bookmarks-for-may-31st-through-june-3rd/#comments Fri, 03 Jun 2011 04:02:29 +0000 Nicholas Lee http://stateless.geek.nz/?p=825 These are my links for May 31st through June 3rd:

]]> http://stateless.geek.nz/2011/06/03/bookmarks-for-may-31st-through-june-3rd/feed/ 0 Bookmarks for April 20th through May 5th http://stateless.geek.nz/2011/05/05/bookmarks-for-april-20th-through-may-5th/ http://stateless.geek.nz/2011/05/05/bookmarks-for-april-20th-through-may-5th/#comments Wed, 04 May 2011 22:00:41 +0000 Nicholas Lee http://stateless.geek.nz/?p=794 These are my links for April 20th through May 5th:

]]> http://stateless.geek.nz/2011/05/05/bookmarks-for-april-20th-through-may-5th/feed/ 0 Bookmarks for April 14th from 13:28 to 15:58 http://stateless.geek.nz/2011/04/14/bookmarks-for-april-14th-from-1328-to-1558/ http://stateless.geek.nz/2011/04/14/bookmarks-for-april-14th-from-1328-to-1558/#comments Thu, 14 Apr 2011 04:00:28 +0000 Nicholas Lee http://stateless.geek.nz/?p=786 These are my links for April 14th from 13:28 to 15:58:

]]> http://stateless.geek.nz/2011/04/14/bookmarks-for-april-14th-from-1328-to-1558/feed/ 0 Bookmarks for April 12th through April 13th http://stateless.geek.nz/2011/04/13/bookmarks-for-april-12th-through-april-13th/ http://stateless.geek.nz/2011/04/13/bookmarks-for-april-12th-through-april-13th/#comments Wed, 13 Apr 2011 03:00:30 +0000 Nicholas Lee http://stateless.geek.nz/?p=777 These are my links for April 12th through April 13th:

]]> http://stateless.geek.nz/2011/04/13/bookmarks-for-april-12th-through-april-13th/feed/ 0 Bookmarks for April 3rd through April 11th http://stateless.geek.nz/2011/04/11/bookmarks-for-april-3rd-through-april-11th/ http://stateless.geek.nz/2011/04/11/bookmarks-for-april-3rd-through-april-11th/#comments Sun, 10 Apr 2011 22:01:09 +0000 Nicholas Lee http://stateless.geek.nz/?p=769 These are my links for April 3rd through April 11th:

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