the files are in the 1Mb hole in the front of the SD card, dd it is not touching the bootrom (if I understand your question ....)
On Friday, 23 January 2015 17:55:49 UTC+1, Robert P. J. Day wrote: > > On Fri, 23 Jan 2015, Robert Nelson wrote: > > > On Fri, Jan 23, 2015 at 10:42 AM, Robert P. J. Day > > <[email protected] <javascript:>> wrote: > > > On Fri, 23 Jan 2015, Robert Nelson wrote: > > > > > >> On Fri, Jan 23, 2015 at 10:28 AM, Robert P. J. Day > > >> <[email protected] <javascript:>> 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. > > > > Any image after August 2014 (cat /etc/dogtag) > > > > Defaults to a boot loader that does: > > /boot/uEnv.txt & /boot/vmlinuz-${uname -r} > > > > Either September or October 2014, we switched to MLO/u-boot.img being > dd*'ed... > > sorry, i phrased that question badly. obviously, i can always > upgrade u-boot on my rev B, but i assume there was a point in the > recent past where the onboard bootrom could handle the dd'ed > MLO/u-boot.img, and that's *not* something i could update. > > given that my BBBs were purchased a while back, i suspect i don't > have that feature in the bootrom. eh, time to pick up some rev Cs. > > rday > > -- > > ======================================================================== > Robert P. J. Day Ottawa, Ontario, CANADA > http://crashcourse.ca > > Twitter: http://twitter.com/rpjday > LinkedIn: http://ca.linkedin.com/in/rpjday > ======================================================================== > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
