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E9卡片电脑的ubuntu系统与android系统共用一个uboot。uboot的默认启动方式为android系统的LCD显示模式。用MFG tools或者SD卡烧写之后,因进行如下操作。 1.启动方式设为emmc启动,然后接上电源,按开机键开机,调试在串口中断敲回车键出现如下界面: ##### Boot for IMX6 Main Menu ##### [1]boot from emmc [2]boot from sdcard [3]boot from tftp [5]download from sdcard [0]setting boot args [q]exit to command mode Enter your selection: 选择“0”设置启动参 ##### Boot for IMX6 Main Menu ##### [1]boot from emmc [2]boot from sdcard [3]boot from tftp [5]download from sdcard [0]setting boot args [q]exit to command mode Enter your selection: 0然后出现如下界面: ##### param setting ##### [1]setting nfs args [2]setting tftp args [3]setting display args [4]setting default boot save setting [q]quit Enter your selection: 输入“4”默认默认启动方式 ##### param setting ##### [1]setting nfs args [2]setting tftp args [3]setting display args [4]setting default boot save setting [q]quit Enter your selection: 4 出现如下界面: ##### param setting ##### [1]ubuntu used emmc [2]android used emmc [3]andorid used tftp & nfs save setting [q]quit Enter your selection: 输入“1”选择默认启动方式为ubuntu ##### param setting ##### [1]ubuntu used emmc [2]android used emmc [3]andorid used tftp & nfs save setting [q]quit Enter your selection: 1 出现界面如下: ##### param setting ##### [1]ubuntu used emmc [2]android used emmc [3]andorid used tftp & nfs save setting [q]quit Enter your selection: 然后 输入“s”保存刚才设置的参数。 ##### param setting ##### [1]ubuntu used emmc [2]android used emmc [3]andorid used tftp & nfs save setting [q]quit Enter your selection: s Saving Environment to MMC... Writing to MMC(3)... done 说明保存参数成功,然后连续输入两次"q"退出到如下界面: ##### Boot for IMX6 Main Menu ##### [1]boot from emmc [2]boot from sdcard [3]boot from tftp [5]download from sdcard [0]setting boot args [q]exit to command mode Enter your selection: 选择"1"启动系统。##### Boot for IMX6 Main Menu ##### [1]boot from emmc [2]boot from sdcard [3]boot from tftp [5]download from sdcard [0]setting boot args [q]exit to command mode Enter your selection: 1 kernel @ 10808000 (5319292) ramdisk @ 11800000 (189998) kernel cmdline: use uboot command line: console=ttymxc0,115200 init=/init video=mxcfb0:dev=hdmi,1920x1080M@60,if=RGB24,bpp=32 video=mxcfb1:off video=mxcfb2:off fbmem=48M vmalloc=400M androidboot.consol Starting kernel ... Uncompressing Linux... done, booting the kernel.......................................... 此后log省略,此时启动的系统默认是LCD显示,不需要设置分辨率的,不用再进行如下第二步操作。如果想进行VGA显示或者HDMI显示,请看步骤2。 2.如果想进行HDMI或者VGA显示,参考光盘"E9用户使用手册"第4.3章节设置。 |
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