On Thu, Aug 21, 2025 at 7:15 PM home user via users <users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
Good morning,
(background)
* Something went wrong with a back-up to a USB-3.0 stick this past May.
Most everything was recovered, but not everything. I was told that the
stick itself was probably not what failed. There are a few other more
likely causes of the failure, but I cannot diagnose it. One major
possibility is that the desktop on which I was trying to read it damaged
some of the contents of the stick.
Was that "desktop" using Windows? Just inserting a USB key in a Windows
system changes something that changes whole drive checksums.
I once forgot to disconnect an USB backup drive when updating Windows.
The update created a Windows partition. overwriting the original table, so
recovering the data would have been a a big project with no guarantee of
success.
Only view backups read-only (
sudo mount -o ro ...). Don't leave backup drives connected when not in use.George N. White III
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