On Thu, Mar 30, 2023 at 09:12:05AM -0700, Dima Kogan wrote: >Pascal Hambourg <pas...@plouf.fr.eu.org> writes: > >> On 30/03/2023 at 01:21, Dima Kogan wrote: >>> I had to turn off >>> secure-boot and UEFI in the BIOS. >> >> Why ? What happens if UEFI boot is enabled ? > >If UEFI was enabled, the USB device isn't seen by the machine in its >list of valid boot devices
Ugh, that sounds like a *particularly* crappy firmware bug then :-( What boot options does the firmware list in that case? Hmm, checking: https://www.dell.com/support/manuals/en-uk/latitude-14-5420-laptop/lati_5420_om/uefi-bios?guid=guid-892bb204-aa23-43e3-aa1f-0c2b66c0ddc3&lang=en-us the "Important Information" section looks like it might be relevant? >> How did you prepare the USB drive ? What installation image did you >> use (full file name and URL please) ? > >>From yesterday's email: > > I downloaded this: > > debian-bookworm-DI-alpha2-amd64-netinst.iso > > from here: > > https://cdimage.debian.org/cdimage/bookworm_di_alpha2/amd64/iso-cd/ > > and I wrote that .iso to /dev/sde > >I did "cp debian-bookworm-DI-alpha2-amd64-netinst.iso /dev/sde" OK, that all sounds fine. >>> I'm not 100% sure of the exact cause. But I suspect strongly is that >>> booting the install media without UEFI broke installing to an UEFI-only >>> disk. >> >> If the installer was booted in BIOS/legacy mode, it installed GRUB for >> legacy boot. > >Was this a choice the installer made, or was it the only option? I don't >actually have a workaround yet. And if the installer had a check box to >ask for a GPT even though the install media was booted without UEFI, >then I could at least get this working after some fiddling. This *might* help you: * partman: If the system is booted in EFI mode, partman defaults to GPT for disk partitioning. If not, it will default to MSDOS. In partman, hitting <enter> on the raw disk will allow you to create a new blank partition table; this will take thd default type normally, and you won't be asked. *If* you switch to expert mode from the main menu (i.e. drop question priority), then go back into partman, you can choose to use a different partition type. By all means try GPT here, and create an EFI system partition (ESP) too. * grub-installer: This depends on the system being booted in EFI mode to do the right thing. If you're not, you *might* be able to make things work by editing the script /usr/bin/grub-installer and replace the line ARCH="$(archdetect)" with ARCH="amd64/efi". I've not tested this, but you *might* be able to progress here. The installer is *very* much designed to only set up EFI-relevant stuff if you're booted in EFI mode. -- Steve McIntyre, Cambridge, UK. st...@einval.com Google-bait: https://www.debian.org/CD/free-linux-cd Debian does NOT ship free CDs. Please do NOT contact the mailing lists asking us to send them to you.
