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Re: [RESEND RESEND RESEND PATCH] templates: introduce GRUB_TOP_LEVEL_* v


From: Oskari Pirhonen
Subject: Re: [RESEND RESEND RESEND PATCH] templates: introduce GRUB_TOP_LEVEL_* vars
Date: Thu, 29 Sep 2022 01:08:03 -0500

On Tue, Sep 27, 2022 at 05:30:45 -0700, Denton Liu wrote:
> A user may wish to use an image that is not sorted as the "latest"
> version as the top-level entry. For example, in Arch Linux, if a user
> has the LTS and regular kernels installed, `/boot/vmlinuz-linux-lts`
> gets sorted as the "latest" compared to `/boot/vmlinuz-linux`. However,
> a user may wish to use the regular kernel as the default with the LTS
> only existing as a backup.
> 
> Introduce the GRUB_TOP_LEVEL_LINUX and GRUB_TOP_LEVEL_XEN variables to
> allow users to specify the top-level entry.
> 

A couple questions:

- If all you're looking for is /boot/vmlinuz-linux to be booted, is
  setting GRUB_DEFAULT in /etc/default/grub "good enough" for your use
  case?
- Is it possible to make this solution more universal? Maybe BSD users
  would like to set their top level entry.
- What about for os-prober? My understanding is that it creates its own
  top level entries as well.

Note with the 1st question: I'm not saying GRUB_TOP_LEVEL_* is a bad
idea. I'm just curious.

- Oskari

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