Re: [gentoo-user] Exact setting in grub to default to a kernel by name?

[Neil Bothwick <neil@digimed.co.uk>]

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On Sun, 13 Jun 2021 00:07:27 -0400, Walter Dnes wrote:

>   I have multiple (would you believe 2?) kernels in /boot.
> 
> [x8940][waltdnes][~] ll /boot/vm*
> -rwxr-xr-x 1 root root 7046848 Jun 12 23:46 /boot/vmlinuz-experimental
> -rwxr-xr-x 1 root root 6986624 Jun 12 16:55 /boot/vmlinuz-production
> 
>   The grub kernel listing at bootup is
> 
> - production kernel
> - production kernel recovery mode
> - experimental kernel
> - experimental kernel recovery mode
> 
>   The default is the first entry, i.e. "GRUB_DEFAULT=0" in
> /etc/default/grub.  I prefer going with "experimental".  If I screw up
> the config to the point where it can't boot, then I'll manually override
> to "production".  The simple way of getting the third entry as default
> is "GRUB_DEFAULT=2" (remember to count from zero).
> 
>   This works for now.  But what happens if/when I add more kernels for
> whatever reason?  Let me rephrase the question more generally... given a
> kernel "/boot/vmlinuz-fubar" how and where do I specify it by name as
> the default boot kernel?
> 

The default setting takes either the number of title of a kernel, so
default="experimental kernel" should do it.


-- 
Neil Bothwick

A Smith & Wesson beats Four Aces everytime.

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