Hi Adam, On Wed, Jul 03, 2013 at 05:21:37PM +0200, Adam Furmanczuk wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi, > > I restate this question from my previous thread "how to flash and set > root variable". Thanks very much to Sascha and Alexander for > introducing into barebox building and flashing. > > I have a basic scenario. Want to boot uImage and then hand over to the > root partition. With u-Boot this was very easy: > > setenv bootargs "console=tty0 console=ttymxc0,115200n8 > root=/dev/mmcblk0p3 rootfstype=ext4 rootwait ro" > > With barebox however, when I boot the uImage, it complains about not > setting correct "root=".: > > [ 1.718527] VFS: Cannot open root device "(null)" or > unknown-block(0,0): error -6 > [ 1.726226] Please append a correct "root=" boot option; here are the > available partitions: > > Now what i do in Barbox is the following; > > (hint enter to go into console) > barebox@myhost:/ mkdir /media2 > barebox@myhost:/ mount /dev/disk0.1 fat /media2 > barebox@myhost:/ bootm /media2/uImage root=/dev/mmcblk0p3 rootfstype=ext4 the bootm command evaluates the 'bootargs' environment variable, so before executing bootm do a: export bootargs="root=/dev/mmcblk0p3 rootfstype=ext4" (sidenote: This is not documented with 'help bootm', shame on us. Try the 'magicvar' command instead which lists all variables with special meanings) Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
