Public bug reported:
If I have existing data on disk built by a previous version of Ubuntu
(in BIOS (legacy) mode, or a previous Windows install, and no EFI system
partition on disk; the installer presents three choices:
- Replace $existing and reinstall. (if a previous Ubuntu install was found)
- Resize and install
- Erase disk and install.
The first two options will attempt to complete the installation in EFI
mode (as they should) but do not create an EFI system partition, which
is required as a place to put shim and grub on disk for booting. The
installer will then crash / fail as grub-install fails to find the ESP
when copying the bootloader.
The last option works correctly, it creates the ESP as it erases the
entire disks and proceeds with new partitioning.
** Affects: partman-efi (Ubuntu)
Importance: Undecided
Status: New
** Affects: ubiquity (Ubuntu)
Importance: Undecided
Status: New
** Also affects: partman-efi (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1766945
Title:
(EFI on top of legacy install) choosing "replace" or "resize" options
in partitioning may lead to an install failure
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