You may need to run the following from a terminal:
sudo apt-get install -f
sudo apt-get clean
sudo apt-get update
Then re-install the package or updates.
If that does not resolve your issue, please mark the bug as "Confirmed"
** Package changed: linux-signed (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Importance: Undecided => Low
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1794866
Title:
package linux-image-4.15.0-34-generic 4.15.0-34.37 failed to
install/upgrade: run-parts: /etc/kernel/postinst.d/zz-update-grub
exited with return code 127
Status in linux package in Ubuntu:
Incomplete
Bug description:
i have no idea what's going on
ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: linux-image-4.15.0-34-generic 4.15.0-34.37
ProcVersionSignature: Ubuntu 4.15.0-30.32-generic 4.15.18
NonfreeKernelModules: nvidia
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Wed Sep 26 22:38:45 2018
DuplicateSignature:
package:linux-image-4.15.0-34-generic:4.15.0-34.37
Setting up grub-pc (2.02-2ubuntu8.4) ...
/var/lib/dpkg/info/grub-pc.config: 1: /etc/default/grub: If: not found
dpkg: error processing package grub-pc (--configure):
installed grub-pc package post-installation script subprocess returned
error exit status 127
ErrorMessage: installed linux-image-4.15.0-34-generic package
post-installation script subprocess returned error exit status 1
HibernationDevice: RESUME=UUID=f9fb9b45-15fd-4aaf-9d86-621c8a0f148d
InstallationDate: Installed on 2016-09-05 (751 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-30-generic
root=UUID=79e61542-0ff4-4917-8222-5239af1a5fe3 ro nouveau.modeset=0 quiet splash
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
Python3Details: /usr/bin/python3.6, Python 3.6.6, python3-minimal,
3.6.5-3ubuntu1
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal,
2.7.15~rc1-1
RelatedPackageVersions: grub-pc 2.02-2ubuntu8.4
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux-signed
Title: package linux-image-4.15.0-34-generic 4.15.0-34.37 failed to
install/upgrade: run-parts: /etc/kernel/postinst.d/zz-update-grub exited with
return code 127
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