How do you have the SAS drive connected to your Mint 22 box (what exact adapter/controller)? Is it going through a real SAS HBA (LSI/Broadcom-style, IT/HBA mode), or through a RAID controller / USB-SAS bridge / "virtual" adapter?
Reason I’m asking: there are basically two connection paths:
- True HBA/passthrough: Linux gets direct SCSI access (you’ll see a /dev/sgX for the disk) and you can usually low-level reformat it back to 512-byte logical blocks (e.g., from 520/528).
- RAID/USB/translation layer: the controller hides or emulates the SCSI commands, so tools like sg_format often can’t issue the low-level format needed to switch the sector size. That might be why the disk is visible in the disks app but not in gparted.
Given the screen shots I believe it's the later. Can someone smarter than me confirm?
2022: Yay, I finally got my Canadian citizenship! Crossing the US border will be much smoother now 2025: psych!