[lug] Gparted doesn't recognize new USB drive

Jed S. Baer blug at jbaer.cotse.net
Fri Mar 12 12:54:20 MST 2021


On Fri, 12 Mar 2021 12:17:57 -0700 (MST)
D. Stimits wrote:

> Old style BIOS partitions have a master boot record, or MBR. Then GPT
> came along. Old MBR software was dangerous to GPT partitions because it
> didn't know what GPT was. So GPT has the option to add a fake MBR which
> doesn't really do anything other than make old BIOS style software avoid
> damaging GPT schemes. If software is refusing to operate on the disk due
> to a protective MBR, then you could completely zero the disk (with dd
> from /dev/zero), and after that some of the more confused software will
> function again. But that depends on why things are failing, thus the
> question on what dmesg shows during USB insert.

[172200.686184] usb 2-4.3: new SuperSpeed Gen 1 USB device number 6 using
xhci_hcd
[172231.537318] usb 2-4.3: New USB device found, idVendor=13fe,
idProduct=6300, bcdDevice= 1.00
[172231.537323] usb 2-4.3: New USB device strings: Mfr=1, Product=2,
SerialNumber=3
[172231.539755] usb-storage 2-4.3:1.0: USB Mass Storage device detected
[172231.540234] scsi host5: usb-storage 2-4.3:1.0
[172232.562124] scsi 5:0:0:0: Direct-Access 2309 PRAM        1.00 PQ: 0
ANSI: 0 CCS
[172232.562996] sd 5:0:0:0: Attached scsi generic sg5 type 0
[172232.581860] sd 5:0:0:0: [sde] Attached SCSI removable disk

Still seems odd that as root, gnome-disks and Gparted don't have the option
to just go ahead and operate on the device. Unless eufi is what's actually
getting in the way. But that seems at odds with using a fake MBR to protect
a GPT scheme.

-- 
All operating systems suck, but Linux just sucks less
 - Linus Torvalds


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