On Fri, 23 Jan 2015, Robert Nelson wrote:
> On Fri, Jan 23, 2015 at 10:28 AM, Robert P. J. Day
> <[email protected]> wrote:
> >
> > been a while since i had to format an SD card from scratch for my
> > BBB and, reading RCN's instructions over at eewiki.net, i have a
> > couple questions.
> >
> > reading here:
> >
> > https://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-SetupmicroSD/SDcard
> >
> > and first question is, why is there no need to create and format a
> > VFAT partition? from memory, i would always create a small, initial
> > VFAT partition and put MLO and uboot there, and format the rest of the
> > SD card as ext? for the rootfs.
> >
> > but the instructions on that page don't create an initial VFAT
> > partition, they just raw copy MLO and u-boot.img to exact addresses on
> > the freshly-zeroed SD card. i had no idea you could do this. or am i
> > misreading something?
>
> It's a feature of the omap4+ bootrom. (omap35/36xx can't do it). We
> had users deleting MLO/u-boot.img in that fat partition so we started
> looking for a way to better protect that.
>
> Ps.. the bootloader does a lot more internally now too, so we can have
> simplified /boot/uEnv.txt script...
which rev of the BBB does that relate to? i'm still using rev B.
> > finally, on my fedora rawhide system, attempting to run sfdisk as
> > given there tells me:
> >
> > 1) --in-order is not even a valid option
> > 2) both --Linux and --unit are deprecated options
>
> Yuck! I knew this was coming, was hoping they "wouldn't" break
> everyone's script.. Looks like they did, sometimes i wonder if they
> enjoy doing that...
making your life difficult ... it's what i live for.
rday
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Robert P. J. Day Ottawa, Ontario, CANADA
http://crashcourse.ca
Twitter: http://twitter.com/rpjday
LinkedIn: http://ca.linkedin.com/in/rpjday
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