H2: More text

exercises/h2.md

@@ -104,9 +104,9 @@ The main rule here: check which components you need support to (yes, components,
 
 If you buy very modern or customized hardware, please consider using a distribution with rolling release model.
 
-#### Other error situations - random errors
+#### Other error situations - random or unexpected errors
 
-A good friend of mine contacted me recently. He stated that he couldn't log in to his [Gentoo](https://en.wikipedia.org/wiki/Gentoo_Linux) installation. After a short talk on phone and various approaches I figured out that the problem must be on his LightDM manager so I adviced him to check his _/var/log/lightdm/_ log files. It was proven that the problem was caused by faulty installation of LightDM package files (wrong permissions) or authentication errors oin his [PAM policy](https://en.wikipedia.org/wiki/Privileged_identity_management). To conclude, all these errors can be very random and results of various reasons.
+A good friend of mine contacted me recently. He stated that he couldn't log in to his [Gentoo](https://en.wikipedia.org/wiki/Gentoo_Linux) installation. After a short talk on phone and various approaches I figured out that the problem must be on his LightDM manager so I adviced him to check his `/var/log/lightdm/` log files. It was proven that the problem was caused by faulty installation of LightDM package files (wrong permissions) or authentication errors oin his [PAM policy](https://en.wikipedia.org/wiki/Privileged_identity_management). To conclude, all these errors can be very random and results of various reasons, mostly due to hardware changes or system updates representing new bugs or conflicting configuration settings.
 
 #### Other error situations - a tricky error tracked down