On Sun, Sep 28, 2014 at 02:28:06AM +0100, Steve McIntyre wrote: > I'm not 100% sure that partman-efi is the right package for the bug > report, but it's as good as any. So, it's way past time to fix this > particular bug. After a fair amount of playing with systems like this > and discussing with folks, my proposed solution is: > > 1. Somewhere during initial partman setup (probably partman-efi?), we > look to see if: > > (a) we're in UEFI mode (trivially true if we're in partman-efi); and > > (b) we have an existing set of partitions that are *not* set up > for UEFI boot (can we use os-prober to get a list at this > stage?) Look for an existing partition setup and maybe > bootable flags, but no detectable EFI System Partition. > > 2. If the above is the case, warn the user: > > "Your computer's firmware has started the installer in UEFI mode > but there are existing Operating Systems already installed: > > * OS 1 > * OS 2 > ... > > "These will not boot in UEFI mode. If you still wish to be able > to boot one of these existing systems after installing Debian in > UEFI mode, this will be difficult. Your best way forward is to > reboot and restart the installer in 'BIOS compatibility > mode'. You will need to reconfigure your computer's boot options > to do this. > > "If you wish to install Debian in UEFI mode and don't care about > keeping the ability to boot one of the existing systems, > continue." > > <Go Back> <Continue> > > If the user wants to continue, we could even suggest blanking the > partition table(s) and starting again with GPT, but I don't think > we currently have a "blank partition table" option exposed within > d-i? > > What do people think of this plan? What have I missed?
Isn't it better to run this test in partman-efi's isinstallable script? Then if things are set up in the described way, grub-efi just won't be installed, but the normal grub will, and the system will continue to boot in BIOS fallback as before. It might make sense to give a warning or error message in case the described setup exists and an ESP partition is created in the partitioner, but other than that... -- It is easy to love a country that is famous for chocolate and beer -- Barack Obama, speaking in Brussels, Belgium, 2014-03-26 -- To UNSUBSCRIBE, email to debian-boot-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20140928064811.ga6...@grep.be
