On Mon, 7 Jan 2019 09:54:13 -0500 J C Nash <profjcnash [ at ] gmail [ dot ] com> wrote: > The "mount" information says Seagate is ext4, but fdisk thinks its > dos. Controller circuitry in the disks for the USB perhaps? No, it's not a hardware issue. "fdisk" reports partition types and those are just hints. I don't believe Linux actually cares about the partition type; you can have a DOS partition type formatted as an ext4 file system and Linux will be perfectly happy to mount it as ext4. However, take a look at this mount output: > /dev/sdf1 on /media/john/RedWD3T type fuseblk fuseblk is a user-space file system driver used to mount NTFS or other filesystems. Being user-space, it's going to be really, really slow. If you can do so without losing data, I'd repartition and reformat the WD disk to be a native ext4 file system. Regards, Dianne. To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org