To add a fun story where Linux saved my live. Back in the 90‘ we had a Clipper / dBASE based DOS app used for capturing orders in a call center after TV commercials. In this case a prime TV show to generate donations. Full house with >100 agents busy. Then the Novell Netware server crashed, and was unable to mount the disks.

We managed to switch the users to an older server so they could continue to work. But it first seemed the HDD and files got corrupted and unrecoverable by disk tools from Netware. We thought of using a commercial recovery service, but this would cause delay and cost $$$$.

So I removed the disks from Netware, fired up a Linux PC, connected the HDD to the Adaptec SCSI (Luckily install prior for a CD drive). The file system was not mountable, but something like dd /dev/sdb1 |strings „JJJJMMDD“ discovered lots of salvage records.

This literally saved my ass and the company.