If I understand correctly Boot rom dont care about the FAT table . its only read first several blocks generally , MLO should be on the 2nd block ,1st block is MBR , But if there is a FAT file system . 2nd block should be fat table , 3nd block should be MLO
whats my failed boot experience is when you format a sd card ,then copy a dummy file first ,then copy MLO to fat partiton this will cause boot failed and if you try another way , fdisk from 10M an create only one ext4 partiton dd if=MLO of=/dev/sdb bs=512 seek=2 this still boot mlo ,but no u-boot.bin , this only because u-boot source code Actually , if you check QNX ipl source code , they dont need any FAT And if you really want a customed u-boot , You can get it minimized lower than 64K and boot kernel directly 2015-01-24 3:40 GMT+08:00 Robert Nelson <robertcnel...@gmail.com>: > > yup, i realize that now. is this behaviour documented somewhere in > > an official TI am335x/omap4+ reference manual somewhere? > > It tis.. under "raw mode".. > > Regards, > > -- > Robert Nelson > http://www.rcn-ee.com/ > > -- > 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 beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
