On 2020-06-13 at 18:44, David Christensen wrote: [that on 2020-06-13 at 15:38, Matthew Campbell wrote:] >> /dev/sda: Toshiba MK1234GS, 111.8 GiB (Internal) >> /dev/sr0: MATSHITADVD-RAM UJ-850S , DVD R/W (Internal IDE) >> /dev/sdb: Toshiba External USB 3.0 3.7 TiB >> /dev/sdc: PNY 32 USB 2.0 FD 28.9 GiB If I'm reading things correctly, this "Toshiba External USB 3.0" - labeled here as /dev/sdb - is the drive which is at the core of the reported problem. I'm wondering whether the fact that it's an external hard drive, connected over USB3, might be relevant to the fact that GRUB and the BIOS are not detecting it. There are systems out there which have some of their USB ports hanging off of an internal USB hub chip, such that in order for the ports to be visible to the rest of the system, a driver for that hub is needed. If GRUB etc. doesn't have a compatible driver for that hub, the USB port to which this external drive is connected might not even be detected in the first place. >> All USB ports are USB 2.0. That's *probably* not a problem relative to the fact that this is a USB3 external hard drive, but it certainly can't be helping. > I like to use the manufacturer diagnostic utility to wipe and test > hard drives: > > https://storage.toshiba.com/consumer-hdd/support/product > > Entering "MK1234GS" and "MK1234GSXIDE" into the edit box makes me > think your HDD is no longer supported. But, there are many FOSS > tools that you can use instead. Unless I'm mixing up my reading of the information posted thus far, this is the internal hard drive, /dev/sda, which has Windows - not the /dev/sdb which has Linux. As such, I don't see how it's relevant to the fact that the latter is not visible to GRUB. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
Attachment:
signature.asc
Description: OpenPGP digital signature