See No 3 in my signature.
I need to increase the storage volume on the SME 9.2 Server in order to give me time to migrate to SME 10.1
You have had years to upgrade. Sorry to be blunt, but you really have.
You don't need to increase the size of your v9. Just migrate. Now.
It will be quicker and easier than trying to find and install old code, grow storage etc etc.
I have built a new SME 10.1 Server and just need about a week to get the migration done
Start migrating today. It will be far less trouble.
Either backup and restore with a USB, or for less downtime use migratehelper script - see the wiki.
Depending on the size of your data migratehelper is quite fast.
https://wiki.koozali.org/MigratehelperThat is the only advice I can give.