package usbmuxd 1.0.2-1ubuntu2 failed to install/upgrade: useradd: não é possível bloquear /etc/passwd, tente novamente mais tarde

[Pedro Chichorro]

Binary package hint: usbmuxd

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ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: usbmuxd 1.0.2-1ubuntu2
ProcVersionSignature: Ubuntu 2.6.32-21.32-generic-pae 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic-pae i686
NonfreeKernelModules: fglrx
Architecture: i386
Date: Fri Apr 16 23:41:46 2010
ErrorMessage: ErrorMessage: subprocesso instalado o programa post-installation retornou erro do status de saída 1
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
SourcePackage: usbmuxd
Title: package usbmuxd 1.0.2-1ubuntu2 failed to install/upgrade: ErrorMessage: subprocesso instalado o programa post-installation retornou erro do status de saída 1

[soleuu (sol-666)]

during an aptitute update after the dist-upgrade I saw :

useradd : impossible de verrouiller /etc/passwd ; veuillez réessayer plus tard.
...
and
..;
useradd : impossible de verrouiller /etc/shadow ; veuillez réessayer plus tard

so i have removed 2 files!
/etc/passwd.lock
/etc/shadow.lock

commands to use:

sudo mv /etc/passwd.lock /etc/passwd.lock.bak
sudo mv /etc/shadow.lock /etc/shadow.lock.bak
sudo aptitude safe-upgrade -y

now packages are configured properly!