云汉的汉云也遇到了同样的问题
找到原因了么？是不是电压不够？
在英文版论坛找到的主题，这个解答是真的么？ 问题如何解决呢？
Raspian-Jessie & Ubuntu Mate: Could’nt find emmc device
They use wrong settings. They simply copied everything from Pine64+ and so it’s no wonder that some things don’t work. Seems to apply to Wi-Fi too according to CNX: http://www.cnx-software.com/2016/07/12/bpi-m64-development-board-is-the-first-64-bit-banana-pi-board/#comment-53676715
哎，为什么咱们的板子只能到国外的网站上找到资料，关于M64 现在所有的基于 Linux的官方发布系统 都 没有 正确的 emmc ，wifi和BT 驱动 而且多多少少都有些问题。
唯一都支付的是官方发布的 android 系统， 而且所有官方 发布的系统 基本上都是 copy 人家板子的系统，，，，
BPi-M64 has no LPDDR3 DRAM but DDR3. It’s just the usual ‘we don’t give a sh*t’ attitude of this vendor that stuff provided as ‘technical documentation’ is in reality the result of ‘copy&paste gone wrong’. Both the LPDDR3 claim and also DRAM clockspeed of 733 MHz are copy&paste from BPi M3. it should also be noted that none of their OS images for BPi M64 can use eMMC or stuff like Wi-Fi/BT at the moment since this vendor simply copied/uses all settings from Pine64+ which do not fit for their own hardware. Also A64’s MMC controller used for eMMC is slightly different than the controller on other Allwinner SoCs and needs a tweak.
Regarding BPi M2 it should be noted that SATA is unfortunately no improvement compared to A20 (but Gigabit Ethernet is, R40 SoC uses a newer IP block comparable to other more recent Allwinner SoCs), that eMMC used on all new SinoVoip boards is the slowest Samsung provides (rated for just 6/40 MB/s write/read) and that the 733 MHz DRAM clockspeed claim is even more wrong here since in reality DRAM is clocked with just 576 MHz on BPi-M2. It should also be noted that a PSU with 1.7/4.0mm barrel plug is necessary otherwise no SATA disk can be powered by their board (of course they do not provide this information by themselves)
Also count of USB ports or leds in their gitbook ‘specs’ is wrong but hey… that’s just minor issues — when it’s like with older boards from them then it should suffice to tell them 10 or 20 times what’s wrong and then they correct it maybe in their ‘specs’ months later. So everything as usual
pine64这绝对是个笑话，人家pine A64可没有eMMC，对应的系统里当然不需要eMMC驱动
不过关于WiFi么……等我回家试试先，我的pine A64自从装好系统点亮之后还没好好看过……
没看懂你的意思， 原文的意思是 bananapi 的官方 os 是直接 ‘借用’ 的pine 64的系统，所以 eMMC，WIFI 等等 很多东西 在官方的os里都是不能用的，这个解释了为什么 找不到emmc