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>What kind of solid state 2 TB drive is this and how is it 'powered'? >It is looking like the drives aren't getting completely written to >before being removed as the ext4 error is a 'oh wait this drive >doesn't have everything I expected too late to give up aaaaaaaaaah' >type oops This is a Samsung 860 EVO 2TB. my connection is a cable that provides both power and data to the device over the USB 3.1 connection. Jerry

I have a brand new 2T external Samsung SSD disk. (two of them) for backup. I tried the first one and had an issue, I tried the second one and got the same issue. Am I doing something wrong ? I find it hard to believe the SSD (both) are bad. I plugged in the USB 3.1 adapter, I fdisk /dev/sdd, n, p, default, default, w. then mkfs.ext4 -j /dev/sdd1, then just mount and rsync. [ 1085.193710]