verifying installed updates

[cam17]

Can I re-verifiy the already installed updates on a Ubuntu station?? My workstation crashes only after I install updates so I am suspecting that one or more updates is causing a problem.

[TheFu]

You can reinstall the packages using sudo apt install --reinstall {pkgname} This will re-validate the crypto-signatures of the package.
However, I would check the system log files for clues. The logs almost always show the cause of any error so either a software or config or hardware solution can be found.