In All SUM Upgrade/patch Etc there are the same forms of monitoring progress:
1. Check in <upgrade directory>/abap/log (ABAP)
2. Check in <upgrade directory>/abap/tmp (ABAP)
3. Check in <upgrade directory>/sdt/log
If in these directories do you have files with recent updated time so, the process is running without any issue.
If is not your case you will need to check:
1. sm37/sm50 jobs will high process time
2. st22 jobs cancelled with errors.
If all look normal witouth issue check the space in upgrade directory, DB logs, /usr/sap/trans and another sap directories.
in import tool phase you can check tms logs too. in STMS t-code -> log PCT. for more clues
hope this help you.
Christopher Arias