On 6/1/23 3:38 PM, George N. White III wrote:
On Wed, May 31, 2023 at 5:05 PM home user <mattis...@comcast.net
<mailto:mattis...@comcast.net>> wrote:
[... snip ...]
The crooks copy name-brand packaging. Bogus USB drives can be introduced
anywhere in the supply chain, so the problem
is usually discovered only when it refuses to hold advertised capacity. Some
reports say they silently discard data past the
physical capacity and fill reads with garbage, so casually transferring a large
file will appear to work until you actually check the
contents.
[... snip ...]
USB3 uses frequencies higher than USB2, so other devices can be affected by
poor shielding at the ports, and
kinked cables or excessively long leads connecting port to system board cause
deterioration of the signals. Are
both ports soldered neatly to the system board with short leads? Consider
adding a USBC card to an older desktop.
I do not the resources to give the tower that kind of physical.
I have no idea how to compare the one iso file to the several directories and
files on the stick.
I looked around for another way to check the sticks. I thought if I put something huge
on the stick, and then use diff, that would do the job. My /home is over 22 GB. So if I
re-format the stick, copy /home to the stick, and do a "diff -r", that would
test much of the stick. But diff can't compare contents of binary files. So I looked at
cmp. That does not have a recursive option. I have not been able to find any other
commands to do a recursive binary compare.
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