[CentOS] CentOS 7.6 external USB dmesg issue

> Am 12.12.2018 um 14:49 schrieb Jerry Geis <jerry.geis at gmail.com>:
> 
> Am I doing something wrong ? I find it hard to believe the SSD (both) are
> bad.
> 

I would check the integrity of this storage device:

# Notice: this destroys your data on the device

badblocks -c 10240 -s -w -t random -v /dev/sdxx

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LF