package flash-kernel 3.100ubuntu4 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1

[Praneeth Goverdhana]

I tried to upgrade to Ubuntu 20.10 from 20.04 in WSL2 AARCH64

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: flash-kernel 3.100ubuntu4
Uname: Linux 4.19.128-microsoft-standard aarch64
ApportVersion: 2.20.11-0ubuntu50
Architecture: arm64
CasperMD5CheckResult: skip
Date: Tue Nov 10 21:42:40 2020
DuplicateSignature:
 package:flash-kernel:3.100ubuntu4
 Processing triggers for flash-kernel (3.100ubuntu4) ...
 Can't find /boot/vmlinuz- (see /tmp/flash-kernel-no-kernel-error.log)
 dpkg: error processing package flash-kernel (--configure):
  installed flash-kernel package post-installation script subprocess returned error exit status 1
ErrorMessage: installed flash-kernel package post-installation script subprocess returned error exit status 1
Python3Details: /usr/bin/python3.8, Python 3.8.6, python3-minimal, 3.8.6-0ubuntu1
PythonDetails: N/A
RebootRequiredPkgs:
 libc6
 libssl1.1
RelatedPackageVersions:
 dpkg 1.20.5ubuntu2
 apt 2.1.10
SourcePackage: flash-kernel
Title: package flash-kernel 3.100ubuntu4 failed to install/upgrade: installed flash-kernel package post-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to groovy on 2020-11-11 (0 days ago)