package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 126

[Yuriy Grishin]

This bug was founded after upgrate ubuntu to 12.04.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: samba4 4.0.0~alpha18.dfsg1-4ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic i686
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu6
Architecture: i386
Date: Sat Apr 28 00:03:08 2012
DuplicateSignature:
 Setting up samba4 (4.0.0~alpha18.dfsg1-4ubuntu2) ...
 /var/lib/dpkg/info/samba4.postinst: 14: /var/lib/dpkg/info/samba4.postinst: /usr/share/samba/setoption.pl: Permission denied
 dpkg: error processing samba4 (--configure):
  subprocess installed post-installation script returned error exit status 126
ErrorMessage: subprocess installed post-installation script returned error exit status 126
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
SourcePackage: samba4
Title: package samba4 4.0.0~alpha18.dfsg1-4ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 126
UpgradeStatus: Upgraded to precise on 2012-04-27 (0 days ago)

[Launchpad Janitor (janitor)]

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

[Julien DIDRON (julien-didron)]

Hi All,

I was able to have it work after a little bit of trial and error.
I couldn't understand, after looking at the scripts, why we get this "permission denied" message.
It turns out the permissions aren't set properly:
- chmod +x /usr/share/samba/setoption.pl

It will however still fail from there on if you type "apt-get install".
Instead edit /etc/samba/smb.conf and uncomment the lines under [netlogon].
Also add the following lines underneath the [netlogon} share declaration, in order to declare [sysvol]:
[sysvol]
        path = ${SYSVOLPATH}
        read only = no

I have to say I actually set ${SYSVOLPATH} to /home/samba/sysvol in order to avoid more complaints, not sure whether that's a good idea.
I only made a brief use of Samba to transfer a few files from Windows, come to think of it I should have used ftp :o)
The system seemed stable, though I can't say that I have extensively tested it.

Cheers,
Julien