[CFT] Kernel-Selection Enhancemnt to Boot Menu

[Kurt Lidl]

On Wednesday, November 06, 2013 19:18:31 UTC Baldwin, John wrote:
> On Wednesday, November 06, 2013 10:22:44 am Teske, Devin wrote:
>>
>> On Nov 6, 2013, at 1:18 AM, Lars Engels wrote:
>>
>> > Am 05.11.2013 18:06, schrieb Kurt Lidl:
>> >
>> >> Well, I'd probably be in support of this change - it sure beats having
>> >> to interrupt the normal boot sequence and typing:
>> >>   unload
>> >>   load /boot/kernel.old/kernel
>> >>   load /boot/kernel.old/opensolaris.ko
>> >>   load /boot/kernel.old/zfs.ko
>> >>   boot
>> >
>> > To load an older kernel I always just type
>> >
>> > boot kernel.old
>> >
>> >
>> > Doesn't that unload the currently loaded kernel automatically?
>>
>> Actually... it does.
>>
>> Thanks for pointing that out (forgot about that).
>
> The only thing that it doesn't do which I wish it did was fixup
> module_path.  Right now if you break into the loader prompt and
> do 'boot foo', you end up with module_path containing
> "/boot/kernel;/boot/modules;/boot/foo".  What I would like is to
> be able to use 'boot foo' and get a proper module_path.

Yeah - I found this out the hard way when playing with incompatible
versions of zfs.ko.  I suppose the "boot kernel.old" method works
if "kernel.old" is "close enough" to "kernel", as you'll get the
kernel.old/kernel file, and kernel/zfs.ko kernel/opensolaris.ko modules
loaded that way.

-Kurt