Error While starting css server on ubuntu

[groenlarsen]

WARNING: No map specified! Server may not heartbeat.
Auto detecting CPU
Using default binary: ./srcds_linux
ERROR: Source engine binary './srcds_linux' not executable, exiting
Thu Jun 28 19:07:05 CDT 2012: Server Failed

Please Help :/

[kraze]

From the error it does not seem like you have a map set to load on server boot. Try adding

map de_dust

to your autoexec.cfg.

[groenlarsen]

its Already set to De_dust2

[rustydusty1717]

srcds_run

[groenlarsen]

No such file or Directory

[rustydusty1717]

cd /etc/source/orangebox
chrt -r 20 ./srcds_run -game dod -maxplayers 18 +map dod_avalanche -ip 10.0.0.15 -autoupdate &

This is my DODS, but it should be this for CSS:

cd /etc/source/css
chrt -r 20 ./srcds_run -game css -parameters

[Edge100x]

From that error, it seems that your executable doesn't have the correct permissions for your user to run it. Try running chmod 755 on ./srcds_linux and ./srcds_run.