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J
@hangman 不是修改cmdline.txt，应该更新extlinux/extlinux.conf
G
@hangman 可能是读卡器兼容性问题，之前有测试过的读卡器如下链接：【淘宝】https://m.tb.cn/h.5kZgqBq?tk=DvWdWeDZbHp CZ3457 「SD卡TF卡USB3.0高速二合一读卡器手机相机内存卡行车记录仪GL3224」 点击链接直接打开 或者 淘宝搜索直接打开