I’ve finally had the opportunity to physically access the machine. I flashed HiveOS on a pendrive, I removed all other drives from the machine and I booted up the OS just using the pendrive.
After logging in with the same rig ID and password of the rig, I tried to launch the selfupgrade command but it failed again.
I installed the 0.6-217@220422 version, and I have Kernel version 5.10.0-hiveos #110.
So now, what is the problem?
UPDATE:
I also noticed that both with the on-drive installation that with the on-pendrive installation, after about 3 hours of mining, the card still continue to run and hash, but the pool stats instead tell that the miner stops hashing.
Every time I restart the miner, after about 3 hours, I am not mining anymore.
So, there is a sign of corruption. But the problem is that i was expecting to solve it by starting the rig with a fresh installation flashed on the pendrive. Instead, I have the exact same issue I hade with the OS installed on the SSD.