Formatting Toshiba Canvia ext. HD on a Mac?

I've followed any advice in the forum already and Continue to get error messages when trying to format a new Toshiba Canvia HD for Mac Journaled. Here's the error, help?

Partitioning disk “TOSHIBA EXTERNAL_USB Media” (disk3)

Running operation 1 of 4: Erase “Untitled” (disk3s2)…

Unmounting disk

Erasing

newfs_hfs: WriteBuffer: pwrite(3, 0x7fe76f400000, 1048576, 41951232): Device not configured

newfs_hfs: write (sector 81936): Device not configured

Mounting disk

Could not mount disk3s2 after erase

File system formatter failed. : (-69832)

Operation failed…

MacBook Pro (M1, 2020)

Posted on Oct 30, 2023 3:17 PM

Top-ranking reply

HWTech

Community+ 2026

Level 9

73,644 points

Posted on Oct 30, 2023 6:08 PM

Erase the whole physical drive as GUID partition and MacOS Extended (Journaled). Within Disk Utility you may need to click "View" and select "Show All Devices" before the physical drives appear on the left pane of Disk Utility.

View in context

Formatting Toshiba Canvia ext. HD on a Mac?

Similar questions