st2000lm007-1r8174 firmware eb01 backed up almost of all modules and system files. Terminal shows mcmt corrupted.
Main system file 348 shows dead at first 4KB, after that it looks fine. Both copies are the same. pc 3000 de shows green, however, almost all 00, is there is any way one can self correct system 348 by using a donor system 348 file header? Or is there a way to load the remaining contents in system file 348 except the first 4 KB which show dead?

Recover what you can and grab a new hard disk. I have lots of storage for recovery jobs.

_________________
Orico DS500C3-US-BK 5-disk 3.5" SATA, iTGZ 4x M.2 2280 Thunderbolt enclosure NVMe/SATA, etc. etc.

first 4KB of 348 is likely to contain data which indicates the state of MC; so blindly borrowing the 1st 4kb from a donor can cause issues - especially if you allow the drive R/W. I would suggest you ensure all your important sysfiles backed up, block write and then load/use 348 / MC modifications in RAM.

The last thing I would do is write a new 348 to the drive.

it is likely readable with error recovery off, don't write anything to the SA.

_________________
Adatmentés - Data recovery