[RESOLVED] Error: Installer already running- Linux Debian

Hello.

Cannot perform installation due to "Error: Installer is running already".

Distributor ID: Debian
Description: Debian GNU/Linux 6.0.6 (squeeze)
Release: 6.0.6
Codename: squeeze

Steps to perform:
1. Start Installation ./ABR11SL_de-DE.i686 -a -i "BackupAndrecoveryAgent" -l XXXXXXXXXXX
2. Cancel through User Input "ctrl +c"
3. Reboot System
4. Repeat Step 1.

Results in: "Error: Installer is running already".
How to fix this?

Thanks in advance.

Edited: Found the solution myself by installing a trial edition of "BackupAndRecovery 11.5". Reproduced the steps 1-4. The Output says to look in /tmp/trueimage_inst.lock. Deleted /tmp/trueimage_inst.lock Reproduced Step 1