System problem detected

[Ralf Mardorf]

On Fri, 26 Apr 2019 13:41:25 +0100, Richard Kimber wrote:
>After completing the upgrade to 19.04, I get a window indicating that
>a system problem has been detected. It doesn't indicate what the
>problem might be but just offers the option to report it, which I've
>done.

Hi,

on the one hand I've seen such windows, IIRC without offering an option
to show the content of the report, on Ubuntu flavour live DVDs, too.
I've checked all those used ISO against the signed checksum, but anyway
didn't agree to send data.

On the other hand in the other thread you mentioned regarding the apt
issue "that there was a version in /usr/local/bin" and that you have
"no idea how it got there", so if you didn't check your ISO against the
signed checksum and/or you added any dubious third party repository,
consider to wipe the install, download the ISO and the checksum again
and check it against the signed checksum after importing the public
Ubuntu keys.

Change into the directory that contains the checksum and the ISO,
import the keys and check everything by running

gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys FBB75451 EFE21092
gpg --list-keys --with-fingerprint FBB75451 EFE21092
gpg --verify SHA256SUMS.gpg SHA256SUMS
sha256sum -c SHA256SUMS 2>&1 | grep OK ; echo $?

If it doesn't return

  name.of.the.ubuntu.flavour.iso: OK
  0

then the ISO is corrupted.

Regards,
Ralf