Edoardo,

On Thu, Mar 04, 2021 at 21:13:55 CET, Edoardo Mantovani wrote:
> Error: Hash sum check for gdb failed
[...]
> gdb  extract gdb-8.2.1.tar.xz (gdb)
> xz: (stdin): File format not recognized
> tar: Child returned status 1
> tar: Error is not recoverable: exiting now

This seems to be a verbose way to tell you: Your downloaded file is
corrupted. You may check if gdb-8.2.1.tar.xz is just empty, truncated
or contains unexpected data (e.g., an error page). May the disk volume
be full? There are so many reasons, but it seems certain the
gdb-8.2.1.tar.xz you got is not the expected file.

Greets
--
Christian Helmuth
Genode Labs

https://www.genode-labs.com/ · https://genode.org/
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