GRUB doesn't contain boot option to other OS when auto-resizing to install

[Joshua Peisach]

Jammy 22.04 testing - Kubuntu was already installed. I auto-resized to install Ubuntu MATE alongside it, and rebooting no boot option, or GRUB option to boot to Kubuntu existed. I even tried sudo update-grub but stil nothing.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: ubiquity 22.04.3
ProcVersionSignature: Ubuntu 5.13.0-19.19-generic 5.13.14
Uname: Linux 5.13.0-19-generic x86_64
ApportVersion: 2.20.11-0ubuntu74
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: MATE
Date: Fri Dec 24 11:17:13 2021
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu-mate.seed maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2021-12-24 (0 days ago)
InstallationMedia: Ubuntu-MATE 22.04 LTS "Jammy Jellyfish" - Alpha amd64 (20211224)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

[Erich Eickmeyer (eeickmeyer)]

Hi Joshua,

This is a known issue that is being discussed [1]. I highly recommend getting involved with the discussion as there are security implications and other items.

[1] https://lists.ubuntu.com/archives/ubuntu-devel/2021-December/041769.html

[Ubuntu QA Website (ubuntuqa)]

This bug has been reported on the Ubuntu ISO testing tracker.

A list of all reports related to this bug can be found here:
http://iso.qa.ubuntu.com/qatracker/reports/bugs/1955719