Public bug reported: I have been trying to upgrade my dual boot system which has v18 and XP to v20 + XP. no luck.
I cloned the old setup to a new drive and tried various ways to install 20 from a usb drive. Somehow setup is not recognising XP. 1. I deleted the old ubuntu drive and fixed the XP MBR issue. XP loads ok but installing v20 did not recognise the XP installation. I tried the proposed fix in XP by running chkdsk in administrator mode but no luck. 2.I tried to install on top of v18 on the fully working clone. The setup was only able to see v18. It did not see the XP. system started to install but failed eventually. hope you can help ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: ubiquity 20.04.15.2 ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44 Uname: Linux 5.4.0-42-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu27.4 Architecture: amd64 CasperMD5CheckResult: skip CasperVersion: 1.445.1 CurrentDesktop: ubuntu:GNOME Date: Mon Dec 21 16:53:44 2020 InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz file=/cdrom/preseed/ubuntu.seed maybe-ubiquity quiet splash --- LiveMediaBuild: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731) ProcEnviron: LANGUAGE=en_US.UTF-8 PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 LC_NUMERIC=C.UTF-8 SourcePackage: grub-installer UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: grub-installer (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug focal ubiquity-20.04.15.2 ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908918 Title: unable to upgrade to 20 from dual boot v18 and XP To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1908918/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs