tutorials:cb2:misc:lubuntu_nand_change_boot_params
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tutorials:cb2:misc:lubuntu_nand_change_boot_params [2013/09/26 12:49] soloforce created |
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| - | ====== u_boot_env_gen ====== | ||
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| - | for lubuntu nand images, the boot parameters is stored at /dev/nandb. | ||
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| - | <code> | ||
| - | root@cubieboard2:~# strings /dev/nandb | ||
| - | bootdelay=1 | ||
| - | bootcmd=run setargs_nand boot_normal | ||
| - | console=ttyS0,115200 | ||
| - | nand_root=/dev/system | ||
| - | mmc_root=/dev/mmcblk0p7 | ||
| - | init=/init | ||
| - | loglevel=5 | ||
| - | setargs_nand=setenv bootargs console=${console} init=${init} loglevel=${loglevel} | ||
| - | setargs_mmc=setenv bootargs console=${console} init=${init} loglevel=${loglevel} | ||
| - | boot_normal=boota 40007800 | ||
| - | boot_recovery=sunxi_flash read 40007800 recovery;boota 40007800 | ||
| - | boot_fastboot=fastboot | ||
| - | recovery_key_value_max=0x13 | ||
| - | recovery_key_value_min=0x10 | ||
| - | fastboot_key_value_max=0x8 | ||
| - | fastboot_key_value_min=0x2 | ||
| - | </code> | ||
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| - | A way to change it is, | ||
| - | - Dump the boot params to a file uEnv.txt | ||
| - | - Change as you want | ||
| - | - Convert uEnv.txt to a image with u_boot_env_gen tool ([[http://dl.cubieboard.org/software/a20-cubieboard/lubuntu/|download]]) | ||
| - | - dd back the image to /dev/nandd | ||
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tutorials/cb2/misc/lubuntu_nand_change_boot_params.1380170984.txt.gz · Last modified: 2013/12/23 14:50 (external edit)
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