Public bug reported:
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
is repeated on 4 lines.
Different shades of "black" as background to text appear at approx 1s
intervals, then whole screen goes blank, this loops for at least 2 mins.
No alternative terminals (Alt+Fx) are available.
After reinstalling and update/dist-upgrade, dmesg contains the
following:
$ sudo dmesg | grep signature
[sudo] password for user:
[ 1614.972768] PKCS#7 signature not signed with a trusted key
[ 1614.973013] vboxdrv: module verification failed: signature and/or required
key missing - tainting kernel
[ 1615.015852] PKCS#7 signature not signed with a trusted key
[ 1615.024261] PKCS#7 signature not signed with a trusted key
[ 1615.032860] PKCS#7 signature not signed with a trusted key
** Affects: virtualbox (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- Ubuntu Mate 18.04 boot fails after upgrade from 4.15.0-20 to to 4.15.0-62
+ Boot fails after upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate 18.04.3)
** Summary changed:
- Boot fails after upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate 18.04.3)
+ Boot fails after kernel upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu Mate
18.04.3)
** 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
is repeated on 4 lines.
Different shades of "black" as background to text appear at approx 1s
intervals, then whole screen goes blank, this loops for at least 2 mins.
No alternative terminals (Alt+Fx) are available.
After reinstalling and update/dist-upgrade, dmesg contains the
following:
$ sudo dmesg | grep signature
- [sudo] password for user:
+ [sudo] password for user:
[ 1614.972768] PKCS#7 signature not signed with a trusted key
[ 1614.973013] vboxdrv: module verification failed: signature and/or required
key missing - tainting kernel
[ 1615.015852] PKCS#7 signature not signed with a trusted key
[ 1615.024261] PKCS#7 signature not signed with a trusted key
[ 1615.032860] PKCS#7 signature not signed with a trusted key
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https://bugs.launchpad.net/bugs/1843662
Title:
Boot fails after kernel upgrade from 4.15.0-20 to to 4.15.0-62 (Ubuntu
Mate 18.04.3)
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https://bugs.launchpad.net/ubuntu/+source/virtualbox/+bug/1843662/+subscriptions
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