trying to install Kubuntu on 16GB pendrive

[pevik]

I run the installer from one pendrive, trying to install Kubuntu on another pendrive. At the very end of the process an error occure saying something about subprocess returning error code 1.

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: ubuntu-release-upgrader-core 1:21.10.8
ProcVersionSignature: Ubuntu 5.13.0-19.19-generic 5.13.14
Uname: Linux 5.13.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu70
Architecture: amd64
CasperMD5CheckMismatches: ./pool/universe/u/ubiquity/oem-config-kde_21.10.10_all.deb ./pool/universe/libf/libffi7/libffi7_3.3-5ubuntu1_i386.deb
CasperMD5CheckResult: fail
CasperVersion: 1.465
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Mon Nov 15 13:00:34 2021
LiveMediaBuild: Kubuntu 21.10 "Impish Indri" - Release amd64 (20211012)
PackageArchitecture: all
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: ubuntu-release-upgrader
Symptom: dist-upgrade
UpgradeStatus: No upgrade log present (probably fresh install)