Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!

[Angel Guzman Maeso]

In dmesg I get:

[ 46.109601] systemd-udevd[2297]: failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event' 'socket:@/org/freedesktop/hal/udev_event': No such file or directory
[ 49.265654] systemd-udevd[2427]: failed to execute '/lib/udev/socket:@/org/freedesktop/hal/udev_event' 'socket:@/org/freedesktop/hal/udev_event': No such file or directory
[ 206.567159] systemd-hostnamed[3523]: Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!

I try to install nss-myhostname package but it doesn't exist. I only see related packages like nsscache,nss-passwords or nss-updatedb

ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: systemd-services 202-0ubuntu10
ProcVersionSignature: Ubuntu 3.8.0-13.23-generic 3.8.3
Uname: Linux 3.8.0-13-generic i686
ApportVersion: 2.10.2-0ubuntu1
Architecture: i386
Date: Thu May 30 00:31:32 2013
InstallationDate: Installed on 2013-02-03 (115 days ago)
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
MarkForUpload: True
SourcePackage: systemd
UpgradeStatus: Upgraded to saucy on 2013-02-03 (115 days ago)

[luigi massa (info-luigi-massa)]

also for me

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Martin Pitt (pitti)]

It's "libnss-myhostname".