MESSAGE
| DATE | 2017-01-26 |
| FROM | Ruben Safir
|
| SUBJECT | Re: [Hangout-NYLXS] coreboot and payloads
|
On Thu, Jan 26, 2017 at 12:01:23AM -0800, Rick Moen wrote:
> Quoting Ruben Safir (ruben-at-mrbrklyn.com):
>
> > Forget about reaching the bios. This is almost like the UEFI idea but
> > without the crypto ^^^^
>
> I think you mean SecureBoot, not UEFI.
>
> > https://libreboot.org/faq/#version
> > You can't get under grub or around grub.
>
> Huh? Cited FAQ URL says nothing to that effect. That just says how to
> query Libreboot's data structures to find out what Libreboot version you
> have.
>
> My understanding is that you have some sort of Lenovo laptop whose
> factory proprietary BIOS has been reflashed by vendor
no, the hardware us pulled, to my understanding.
> https://minifree.org/ to use instead Libreboot, which in turn boots some
> version of GRUB, which in turn boots Debian. I assume you saw this
> on minifree.org's FAQ:
>
> Q: What’s the username and password?
>
> A: On all laptops shipped by Minifree, the default username is user
> and the password is cuser90r (or password)
>
> You must change at least the password immediately, because this is
> generic and not secure, used on every minifree laptop that is shipped.
>
> In order to get in with root authority, the most obvious way would be to
> interrupt GRUB. I actually rather detest GRUB, and don't often deal
> with it. Ordinarily, to break into GRUB (according to a quick Web
> search), it suffices to hod down the Shift key while your system boots.
> According to Internet sources, this works both in GRUB 1.9x ("Legacy
> GRUB") and the even more detestable and overengineered GRUB2.
> Sometimes, Esc will also do it, apparently. See:
>
> https://help.ubuntu.com/community/Grub2#Hidden
>
> Having interrupted GRUB, then you are in a position to do a one-time
> alteration of the booting kernel's bootloader parameters, and can add
> the word 'single', while also removing 'quiet' or any rubbish like that,
> that was inserted to show you soothing pictures and hide boot-process
> information.
>
that doesn't work fwiw. single is not a grub key word.
> Occasionally, some real nitwit _also_ password-wraps the GRUB screens.
> Here's docs about that:
> https://help.ubuntu.com/community/Grub2/Passwords
>
> In any event, if you can get GRUB's attention and edit access to its
> current booting directives, you can alter just about anything, like
> specifying for the current occasion a different boot device so that you
> can boot a USB flash stick or optical disk.
>
> GRUB uses its own naming structure for drives and partitions in the form
> of (hdn,m), where n is the hard drive number and m is the partition
> number. The hard drive number starts from zero, but the partition number
> starts from one for normal partitions and five for extended partitions.
> Note that this is different from earlier versions where both numbers
> started from zero. For example, partition sda1 is (hd0,1) to GRUB and
> sdb3 is (hd1,3). In contrast to Linux, GRUB does not consider CD-ROM
> drives to be hard drives. For example, if using a CD on hdb and a second
> hard drive on hdc, that second hard drive would still be (hd1).
>
> I just looked up the foregoing, because I really rather dislike GRUB.
> Did I mention that I really don't like it much? ;->
>
Yeah - thats it. You need to declare the kernel to boot first, not
simple when you have no os running to do a dmesg, and then you can run a
nornmal live disk and do an install. bios features need to run through
something called nvram... something or other. When I get home I'll post
the exact name. Its a command line program that flips bios bits.
> _______________________________________________
> hangout mailing list
> hangout-at-nylxs.com
> http://www.nylxs.com/
--
So many immigrant groups have swept through our town
that Brooklyn, like Atlantis, reaches mythological
proportions in the mind of the world - RI Safir 1998
http://www.mrbrklyn.com
DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002
http://www.nylxs.com - Leadership Development in Free Software
http://www2.mrbrklyn.com/resources - Unpublished Archive
http://www.coinhangout.com - coins!
http://www.brooklyn-living.com
Being so tracked is for FARM ANIMALS and and extermination camps,
but incompatible with living as a free human being. -RI Safir 2013
_______________________________________________
hangout mailing list
hangout-at-nylxs.com
http://www.nylxs.com/
|
|
