Not sure if this is the correct place.... (laptop, dual-boot EFI)

Karl Denninger karl at denninger.net
Sat Jan 26 21:05:08 UTC 2019


Nevermind!

I set the "-g" flag on the provider and.... voila.  Up she comes; the
loader figured out that it had to prompt for the password and it was
immediately good.

Now THAT'S easy compared with the convoluted BS I had to do (two
partitions, fully "by-hand" install, etc) for 11 on my X220.

Off to the races I go; now I have to figure out what I have to set in
Windows group policy so Bitlocker doesn't throw up every time I boot
FreeBSD (this took a bit with my X220 since the boot manager tickled
something that Bitlocker interpreted as "someone tampered with the
system.")  Maybe this will be a nothingburger too (which would be great
if true.)

I'm going to write this one up when I've got it all solid and post it on
my blog; hopefully it will help others.

On 1/26/2019 14:26, Karl Denninger wrote:
>  1/26/2019 14:10, Warner Losh wrote:
>>
>> On Sat, Jan 26, 2019 at 1:01 PM Karl Denninger <karl at denninger.net
>> <mailto:karl at denninger.net>> wrote:
>>
>>     Further question....  does boot1.efi (which I assume has to be
>>     placed on
>>     the EFI partition and then something like rEFInd can select it)
>>     know how
>>     to handle a geli-encrypted primary partition (e.g. for root/boot so I
>>     don't need an unencrypted /boot partition), and if so how do I tell it
>>     that's the case and to prompt for the password?
>>
>>
>> Not really. The whole reason we ditched boot1.efi is because it is
>> quite limited in what it can do. You must loader.efi for that.
>>  
>>
>>     (If not I know how to set up for geli-encryption using a non-encrypted
>>     /boot partition, but my understanding is that for 12 the loader was
>>     taught how to handle geli internally and thus you can now install
>>     12 --
>>     at least for ZFS -- with encryption on root.  However, that wipes the
>>     disk if you try to select it in the installer, so that's no good
>>     -- and
>>     besides, on a laptop zfs is overkill.)
>>
>>
>> For MBR stuff, yes. For loader.efi, yes. For boot1.efi, no: it did not
>> and will not grow that functionality.
>>
>> Warner
>>  
> Ok, next dumb question -- can I put loader.efi in the EFI partition
> under EFI/FreeBSD as "bootx64.efi" there (from reading mailing list
> archives that appears to be yes -- just copy it in) and, if yes, how do
> I "tell" it that when it finds the freebsd-ufs partition on the disk it
> was started from (which, if I'm reading correctly, it will scan and look
> for) that it needs to geli attach the partition before it dig into there
> and find the rest of what it needs to boot?
>
> That SHOULD allow me to use an EFI boot manager to come up on initial
> boot, select FreeBSD and the loader.efi (named as bootx64.efi in
> EFI/FreeBSD) code will then boot the system.
>
> I've looked as the 12-RELEASE man page(s) and it's not obvious how you
> tell the loader to look for the partition and then attach it via GELI
> (prompting for the password of course) before attempting to boot it;
> obviously a "load" directive (e.g. geom_eli_load ="YES") makes no sense
> as the thing you'd "load" is on the disk you'd be loading it from and
> its encrypted.. .never mind that loader.conf violates the 8.3 filename
> rules for a DOS filesystem.
>
> Thanks!
>
-- 
Karl Denninger
karl at denninger.net <mailto:karl at denninger.net>
/The Market Ticker/
/[S/MIME encrypted email preferred]/
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