Help users who have started the installer in the wrong efi/bios mode
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| ubiquity (Ubuntu) |
New
|
Undecided
|
Unassigned | ||
Bug Description
I recently tried to do a fresh install of Kubuntu 20.04 over the top of an existing installation.
sda - Windows install
sdb - Windows spinning disk
sdc - Linux disk, partitioned into / and /home
Because I didn't want to trash /home, I had to choose manual partitioning. I set sdc1 to be formatted ext4 and mounted at /, set sdc2 to be mounted as /home, and set the boot loader to be installed on sdc. I'm not convinced the partitioning part is relevant.
After the installation finished and I rebooted, I was presented with a grub terminal, nothing else.
I eventually realised that I had booted the usb stick into bios mode (this was the first entry I found), and when I repeated the installation with it booted into uefi mode everything worked.
I don't know anything about the details of bios/uefi, so this may be a stupid question, but is there any way that the installer could have figured out that I was doing something wrong and given me a hint before I rebooted to a grub console? I haven't tested with automatic partitioning, maybe that works better, but booting to a blank grub console is a pretty harsh outcome for the installer.
