Help with nand u-boot environment
Hi all, I've been messing with u-boot and need some help. I was trying to set the rw parameter into bootargs to boot 2008.12 from SD. After a couple attempts, I had too many entries in the u-boot, and wanted to erase them all, so I used the defaultenv command in u-boot to reset them to the beginning. The beginning I think it's not a working environment. Now the environment is messed and I can't boot from NAND, only from NOR, even if I want to use internal flash and not SD. re-flashing the bootloader does not change the environment. Could somebody point me to a saved environment file somewhere? or, could anybody please upload a working environment into the wiki? All you have to do is boot into the menu (AUX+Power), connect a usb cable and use dfu to backup your environment: dfu-util -d 0x1d50:0x5119 -a u-boot_env -D env.orig I can assure you that having a backup copy of your own environment can turn out to be useful also to you, someday :-) One more question: if I use a menu item like this: setenv menu_1 Boot from microSD (2008.12): setenv rootfstype=ext2 root=/dev/mmcblk0p2 \; mmcinit\; fatload mmc 1 0x3200 uImage.bin\; bootm 0x3200 and then run menu_1 I always (even if booting the kernel has success) see on the console an error: Unknown command 'Boot' - try 'help' is there a way to avoid this? thanks, leonardo. -- http://leonardo.lilik.it Key fingerprint = 2C20 A587 05AC 42E5 1292 D0D4 3EED CFB5 52FD AD1E ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Help with nand u-boot environment
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Somebody in the thread at some point said: | Hi all, | I've been messing with u-boot and need some help. | I was trying to set the rw parameter into bootargs to boot 2008.12 | from SD. After a couple attempts, I had too many entries in the u-boot, | and wanted to erase them all, so I used the defaultenv command in | u-boot to reset them to the beginning. The beginning I think it's not | a working environment. | Now the environment is messed and I can't boot from NAND, only from NOR, | even if I want to use internal flash and not SD. | | re-flashing the bootloader does not change the environment. I think what your missing then is dynpart or dynparts to fill in more of the environment for you, then saveenv. | Unknown command 'Boot' - try 'help' | | is there a way to avoid this? No immediate idea, sorry. This kind of thing is why there is no private environment in Qi. - -Andy -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iEYEARECAAYFAkleBAsACgkQOjLpvpq7dMp4YACggNKFFQGgFYDeDNcsaTZ2cDJR kioAnRFQ9Yh5lAQMtcIvy878Ro3RdoyV =GHxZ -END PGP SIGNATURE- ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Help with nand u-boot environment
One more question: if I use a menu item like this: setenv menu_1 Boot from microSD (2008.12): setenv rootfstype=ext2 root=/dev/mmcblk0p2 \; mmcinit\; fatload mmc 1 0x3200 uImage.bin\; bootm 0x3200 and then run menu_1 I always (even if booting the kernel has success) see on the console an error: Unknown command 'Boot' - try 'help' 'run var' just means 'execute string stored in var as a u-boot command'. And that is exactly what it does. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Help with nand u-boot environment
Leonardo-3 wrote: Hi all, I've been messing with u-boot and need some help. I was trying to set the rw parameter into bootargs to boot 2008.12 from SD. After a couple attempts, I had too many entries in the u-boot, and wanted to erase them all, so I used the defaultenv command in u-boot to reset them to the beginning. The beginning I think it's not a working environment. Now the environment is messed and I can't boot from NAND, only from NOR, even if I want to use internal flash and not SD. re-flashing the bootloader does not change the environment. Could somebody point me to a saved environment file somewhere? or, could anybody please upload a working environment into the wiki? I've found this useful on multiple occasions - http://wiki.openmoko.org/wiki/Bootloader#What_if_I_borked_my_bootloader_environment_and_don.27t_get_a_prompt_anymore.3F To reset uboot environments. You can also tweak the environment.in file for stuff like large kernels, or (I guess) different menu entries. HTH -- View this message in context: http://n2.nabble.com/Help-with-nand-u-boot-environment-tp2101581p2102386.html Sent from the Openmoko Community mailing list archive at Nabble.com. ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
Re: Help with nand u-boot environment
Gothnet wrote: Hi everybody. Thanks for the help, I'm now able to boot both qt-extended and 2008.12! I'm still not really confident about u-boot syntax, I understand that setenv var content means set content into var, but what is the part of content that is displayed as a menu entry and what is the part that is executed? leonardo. -- http://leonardo.lilik.it Key fingerprint = 2C20 A587 05AC 42E5 1292 D0D4 3EED CFB5 52FD AD1E ___ Openmoko community mailing list community@lists.openmoko.org http://lists.openmoko.org/mailman/listinfo/community
