Synology DSM 7, how to reinstall?

Question

Data recovery

Good afternoon. Essence of the question: how to reinstall DSM 7 DSM_DS218+_41882.pat?
reason: power outage, restart. Part of the functionality has stopped working, that is, Bash scripts do not work, -exec does not work, for example

Thank you

Answer 1

As far as I know, the update cannot be re-rolled. You can only try to flash it again as if it were a new device through Synology Assistant. Support in response to such a question begins to co-op, bleat and mumble. I have a similar situation - I stupidly wrote the /etc/sudoers file with wrong permissions and now sudo does not work:

Answer 2

install DSM_DS218+_41882.pat /какой-то путь
The question remains at the place of installation, I think. Any thoughts? It is possible to roll on the VM and pick there, so that it would not be a pity.