On Mon, 2 Jan 2017 12:15:38 +0100, Mayavimmer wrote:
> >> And while we are waiting for that, I would ask: why the UEFI overwrite
> >> pain? Can we add these 3 lines of pseudocode?
> >>
> >> if thisBox.alreadyHas( anotherFedora ) and isUEFI:
> >> showDialog("Sorry, cannot currently add a second Fedora")
> >> exit(0)
> >
> > Because that code by itself would prevent replacing an existing Fedora
> > (of any release version).
>
> Ok, right. Then we could get the best of both worlds, in keeping with
> the Hippocratic Oath to at least do no harm, by dropping the exit() in
> this two line pseudocode:
>
> if thisBox.alreadyHas( anotherFedora ) and isUEFI:
> showDialog("WARNING: you already have a Fedora installation\n"
> "If you continue it will be OVERWRITTEN!")
>
> ...or "will be rendered inaccessible", until your suggestions not
> implemented or some progress is made. Right now people who have not read
> this thread risk losing their data.
For the BIOS install scenario, the MBR has been overwritten too, unless
the user customised the installer's bootloader settings.
When installing an OS it is expected that old installations are overwritten
or made non-bootable because a new bootloader is installed. It's a plus
that os-prober finds some existing installations, but it's not a must.
A growing number of warnings one would have to click through would be
problematic, too. The wording in the dialog above is ambiguous. An
upper-case "OVERWRITTEN" would be reason enough for users to quit
installation at this point out of fear. Just because they want to read up
on what exactly will be overwritten and whether they want that. They want
installation to "just work" and expect the installer to do what's
necessary.
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