I installed Ubuntu 25, version:

Linux version 6.14.0-15-generic (buildd@lcy02-amd64-022) (x86_64-linux-gnu-gcc-14 (Ubuntu 14.2.0-19ubuntu2) 14.2.0, GNU ld (GNU Binutils for Ubuntu) 2.44) #15-Ubuntu SMP PREEMPT_DYNAMIC Sun Apr 6 15:05:05 UTC 2025

I like the fast response and performance of Ubuntu 25 so the ideal solution would be to stay on this installation. I know that on the prior version, Ubuntu 24 it worked.

I installed Steam again, mounted my steam folder drive and added the steam folder as the default installation directory.

Then I started CS 2 and got this error. (see picture)

What I already did:

  • Installed files > Verify integrity of game files
  • Installed files > Move install folder > Moved the folder to the same disk where Steam app is installed
  • Installed DLC > Counter-Strike 2 Workshop Tools
  • Delete the cs2.exe (…/game/bin/win64/cs2.exe) and all .signature files in this folder
  • Delete parts of the game folder (…/game/bin)
  • Checked integrity again
  • Removed CS2 completely from steam and re-downloaded it

Nothing seems to help. What can I do to make VAC be quiet again?

  • FloopquistOPEnglish
    2·
    1 day ago

    Error message:

    Some of your game files have been detected to have no signatures or invalid signatures. You will not be allowed to join VAC secure servers. Please verify your launch options, check correctness of your game installation, restart the game and try again.