MySQL does not upgrade correctly for 5.1.30really5.0.75-0ubuntu10.2

[chipuni]

% lsb_release -rd
Description: Ubuntu 9.04
Release: 9.04

%apt-cache policy mysql-server-5.0
mysql-server-5.0:
  Installed: 5.1.30really5.0.75-0ubuntu10.2
  Candidate: 5.1.30really5.0.75-0ubuntu10.2
  Version table:
 *** 5.1.30really5.0.75-0ubuntu10.2 0
        500 http://us.archive.ubuntu.com jaunty-updates/main Packages
        100 /var/lib/dpkg/status
     5.1.30really5.0.75-0ubuntu10 0
        500 http://us.archive.ubuntu.com jaunty/main Packages

Information from the update using aptitude:

Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
 * Stopping MySQL database server mysqld [ OK ]
 * Reloading AppArmor profiles ... * Warning: found /etc/apparmor.d/force-complain/usr.bin.freshclam, forcing complain mode
 * Warning: found /etc/apparmor.d/force-complain/usr.sbin.mysqld, forcing complain mode
                                                                                    [ OK ]
 * Starting MySQL database server mysqld [ OK ]
/etc/init.d/mysql: line 115: /etc/mysql/debian-start: Permission denied
invoke-rc.d: initscript mysql, action "start" failed.

^Cdpkg: error processing mysql-server-5.0 (--configure):
 subprocess post-installation script killed by signal (Interrupt)
dpkg: dependency problems prevent configuration of mysql-server:
 mysql-server depends on mysql-server-5.0; however:
  Package mysql-server-5.0 is not configured yet.
dpkg: error processing mysql-server (--configure):
 dependency problems - leaving unconfigured
Setting up mysql-client (5.1.30really5.0.75-0ubuntu10.2) ...
No apport report written because the error message indicates its a followup error from a previous failure.
. . .
Processing triggers for menu ...
Errors were encountered while processing:
 mysql-server-5.0
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
 * Stopping MySQL database server mysqld [ OK ]
 * Reloading AppArmor profiles ... * Warning: found /etc/apparmor.d/force-complain/usr.bin.freshclam, forcing complain mode
 * Warning: found /etc/apparmor.d/force-complain/usr.sbin.mysqld, forcing complain mode
                                                                                    [ OK ]
 * Starting MySQL database server mysqld [ OK ]
/etc/init.d/mysql: line 115: /etc/mysql/debian-start: Permission denied
invoke-rc.d: initscript mysql, action "start" failed.

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 9.04
ErrorMessage: subprocess post-installation script killed by signal (Interrupt)
NonfreeKernelModules: fglrx
Package: mysql-server-5.0 5.1.30really5.0.75-0ubuntu10.2
SourcePackage: mysql-dfsg-5.0
Title: package mysql-server-5.0 5.1.30really5.0.75-0ubuntu10.2 failed to install/upgrade: subprocess post-installation script killed by signal (Interrupt)
Uname: Linux 2.6.28-11-generic i686

[chipuni (edwardsb)]

Method to fix problem:

From a terminal, type:

% sudo chmod 755 /etc/mysql/debian-start

Then re-run the updates.

[Mathias Gug (mathiaz)]

On Thu, Jun 04, 2009 at 01:39:18AM -0000, chipuni wrote:
> Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.2) ...
> * Stopping MySQL database server mysqld [ OK ]
> * Reloading AppArmor profiles ... * Warning: found /etc/apparmor.d/force-complain/usr.bin.freshclam, forcing complain mode
> * Warning: found /etc/apparmor.d/force-complain/usr.sbin.mysqld, forcing complain mode
> [ OK ]
> * Starting MySQL database server mysqld [ OK ]
> /etc/init.d/mysql: line 115: /etc/mysql/debian-start: Permission denied

What are the permissions of the file /etc/mysql/debian-start?
The following command output would be useful:

 ls -l /etc/mysql/debian-start

  status incomplete

--
Mathias Gug
Ubuntu Developer http://www.ubuntu.com

[chipuni (edwardsb)]

Mathias --

They had been:
% ls -l /etc/mysql/debian-start
-rw-r--r-- 1 root root 1198 2008-03-19 13:58 /etc/mysql/debian-start*

They are currently:
% ls -l /etc/mysql/debian-start
-rwxr-xr-x 1 root root 1198 2008-03-19 13:58 /etc/mysql/debian-start*

Please note the method to solve the problem that I submitted as a comment.

[Mathias Gug (mathiaz)]

Do you know why the permission on /etc/mysql/debian-start had been changed?

[chipuni (edwardsb)]

Mathias Gug wrote:
> Do you know why the permission on /etc/mysql/debian-start had been
> changed?

No, I do not know how it had been changed.

[Mathias Gug (mathiaz)]

Marking won't fix since the reporter found a workaround.