kernel names

Allan Jude allanjude at freebsd.org
Thu Dec 14 05:52:02 UTC 2017


On 12/14/2017 00:47, blubee blubeeme wrote:
> When you boot into FreeBSD and you can select kernels, there's only 2
> options:
> default and kernel.old
> 
> Is there a way to have better output and support multiple kernels without
> having to login to the system and running uname -v or something like that?
> 
> Would it be possible to add options for more kernels from that boot menu?
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The list is controlled by the /boot/loader.conf variable kernels=
which defaults to "kernel kernel.old"

I have a patch almost ready to land that will search all subdirectories
of /boot for a file named 'kernel' and add the names of those
directories to the list, such that the list will basically be autogenerated.

It currently contains too much copy/pasted code, and I just need to
clean it up a bit: https://reviews.freebsd.org/D11886

It was originally designed as part of my contributions towards packaged
base, where pkg will keep the last N (default to 5 I think) kernel
packages you have installed around, incase an upgrade goes bad.

This feature will work on any filesystem supported by the loader.

-- 
Allan Jude


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