[Bug 1843662] Re: Boot fails after kernel upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate 18.04.3)

2019-09-11 Thread Bashing-om
Hekko Gareth Evans ; the error: "PKCS#7 signature not signed with a trusted key" is generally hardware driver related - specifically Nvidia. What results when attempting to boot with the nomodeset boot parameter: A common kernel (boot)parameter is nomodeset, which is needed for some graphic

[Bug 1843662] Re: Boot fails after kernel upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate 18.04.3)

2019-09-11 Thread Gareth Evans
** Description changed: This bug affects the physical host machine, but seems to stem from virtualbox. After apt-get dist-upgrade upgraded kernel from 4.15.0-20 to to 4.15.0-62, the machine fails to boot after restart. The text: PKCS#7 signature not signed with a trusted key

[Bug 1843662] Re: Boot fails after kernel upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate 18.04.3)

2019-09-11 Thread Gareth Evans
** Description changed: This bug affects the physical host machine, but seems to stem from virtualbox. After apt-get dist-upgrade upgraded kernel from 4.15.0-20 to to 4.15.0-62, the machine fails to boot after restart. The text: PKCS#7 signature not signed with a trusted key