Re: writing iso file to usb stick with dd - garbled files - usb eject error?
Titus Newswanger composed on 2025-08-02 23:50 (UTC-0500):
> I've been meaning to learn how to sha512sum after it is written to disk.
> Now I've got it. Here are my results:
> on the older usb disk that worked, sha512sum matched
> on the new faulty disk, after writing with dd, sha512sum did not match
> on the same faulty disk, after writing with "Disk Image Writer" and I
> successfully installed trixie on a machine, I checked the usb disk and
> sha512sum did not match 🙁 I thought I was finished with that server.
> Now I need to decide if I will start over or just leave it and hope for
> the best. Considering it is a mini pc used as a headless print server to
> connect a little used usb only printer to my network, I think I will
> just place a note in /etc/motd like:
> This copy of Debian was installed with a broken installer, expect anything!
Next time, consider the alternative to dd that I use:
time ddrescue downloads/win10_22H2x64.iso /dev/sdh --force && sync
ddrescue output is verbose by default, and extremely rarely fails to write
successfully even on a poor quality stick.
--
Evolution as taught in public schools is, like religion,
based on faith, not based on science.
Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!
Felix Miata
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