couldn't connct to my-sql. error 2002(HY000)

[arindam]

using jaunty. mysql wldn't connct.
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)

tried to reinstall.

Reading package lists... Done
Building dependency tree
Reading state information... Done
mysql-server is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 1 not upgraded.
2 not fully installed or removed.
After this operation, 0B of additional disk space will be used.
Setting up mysql-server-5.0 (5.1.30really5.0.75-0ubuntu10.1) ...
 * Stopping MySQL database server mysqld [ OK ]
 * Reloading AppArmor profiles ... [ OK ]
 * Starting MySQL database server mysqld [fail]
invoke-rc.d: initscript mysql, action "start" failed.
dpkg: error processing mysql-server-5.0 (--configure):
 subprocess post-installation script returned error exit status 1
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
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 mysql-server-5.0
 mysql-server
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
Architecture: i386
DistroRelease: Ubuntu 9.04
ErrorMessage:
 ErrorMessage: subprocess post-installation script returned error exit status 1
NonfreeKernelModules: nvidia
Package: mysql-server-5.0 5.1.30really5.0.75-0ubuntu10.1
SourcePackage: mysql-dfsg-5.0
Title: package mysql-server-5.0 5.1.30really5.0.75-0ubuntu10.1 failed to install/upgrade:
Uname: Linux 2.6.28-12-generic i686

[Mathias Gug (mathiaz)]

Thank you for taking the time to report this bug and helping to make Ubuntu better.

Could you please provide the following information:

 * content of /var/log/daemon.log related to mysql processes:

    /var/log/daemon.log

 * apparmor audit messages related to mysqld:

    /var/log/kern.log

 * mysqld apparmor profile:

    /etc/apparmor.d/usr.sbin.mysqld

 * list of mysqld apparmor profiles:

    ls -l /etc/apparmor.d/usr.sbin.mysqld*

 * mysql configuration stripped of private information (such as password):

    /etc/mysql/my.cnf

 * extra mysql configuration from the conf.d directory:

    /etc/mysql/conf.d/

 * directory listing of mysql datadir (by default /var/lib/mysql):

    ls -l /var/lib/mysql

[Chuck Short (zulcss)]

We'd like to figure out what's causing this bug for you, but we haven't heard back from you in a while. Could you please provide the requested information? Thanks!