just noticed my reply to Steve's question didn't make it into the thread.. here
it is, maybe s.o. still hears me:
reason may be - or comes together whith - that the installation-program crashed
when I made the fresh install of this ubuntu version from usb. During
installation i chose efi
[Expired for shim-signed (Ubuntu) because there has been no activity for
60 days.]
** Changed in: shim-signed (Ubuntu)
Status: Incomplete => Expired
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** Tags removed: need-duplicate-check
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https://bugs.launchpad.net/bugs/1682564
Title:
(non-UEFI system) package shim-signed
1.28+0.9+1474479173.6c180c6-1ubuntu1 failed to
Your log shows that you have the shim-signed package installed, but that
this is not a UEFI-booted system. Why do you have the shim-signed
package installed before this upgrade?
** Summary changed:
- package shim-signed 1.28+0.9+1474479173.6c180c6-1ubuntu1 failed to
install/upgrade: subprocess
