/*********************************************************************** * I.MX6 Ubuntu core porting * 说明： * 之前查资料查到了Ubuntu core的资料，然后一直想尝试将Ubuntu core放到 * I.MX6中，当然也想将其放到OK335xS中，于是今天花点时间将其放入I.MX6中。 * * 2016-4-16 深圳 南山平山村 曾剑锋 **********************************************************************/ 一、参考文档： 1. 移植ubuntu core到Arm开发板 http://blog.csdn.net/kickxxx/article/details/15341079 2. Ubuntu 14.04 for i.MX6 https://support.bluetechnix.at/wiki/Ubuntu_14.04_for_i.MX6 二、download: 1. https://developer.ubuntu.com/en/snappy/
2. http://cdimage.ubuntu.com/ubuntu-base/releases/12.04/release/
3. http://mirror1.ku.ac.th/ubuntu-cdimages/ubuntu-core/
三、解压打包： tar zxvf ubuntu-core-12.04.4-core-armhf.tar.gz -C rootfs/ cd rootfs tar jcvf rootfs.tar.bz2 * mv rootfs.tar.bz2 .. cd .. cp rootfs.tar.bz2 /mnt/hgfs/Desktop/ 四、error 1. error1： 1. 内核打印信息在如下位置停止了： ...... EXT3-fs (mmcblk0p1): warning: checktime reached, running e2fsck is recommended kjournald starting. Commit interval 5 seconds EXT3-fs (mmcblk0p1): using internal journal EXT3-fs (mmcblk0p1): mounted filesystem with writeback data mode VFS: Mounted root (ext3 filesystem) on device 179:1. Freeing init memory: 208K init: Unable to mount /dev filesystem: No such device 2. 问题原因： debug的终端口没有打开，需要另外配置console。 3. cat /etc/init/ttymxc.conf # console - getty # # This service maintains a getty on console from the point the system is # started until it is shut down again. start on stopped rc RUNLEVEL=[2345] and ( not-container or container CONTAINER=lxc or container CONTAINER=lxc-libvirt) stop on runlevel [!2345] respawn exec /sbin/getty -L 115200 ttymxc0 vt102 4. cat /etc/init.d/rc.local ...... start ttymxc0 ...... 2. error2： 1. root用户需要密码，去掉该功能； 2. cat /etc/passwd root::0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/bin/sh man:x:6:12:man:/var/cache/man:/bin/sh lp:x:7:7:lp:/var/spool/lpd:/bin/sh mail:x:8:8:mail:/var/mail:/bin/sh news:x:9:9:news:/var/spool/news:/bin/sh uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh proxy:x:13:13:proxy:/bin:/bin/sh www-data:x:33:33:www-data:/var/www:/bin/sh backup:x:34:34:backup:/var/backups:/bin/sh list:x:38:38:Mailing List Manager:/var/list:/bin/sh irc:x:39:39:ircd:/var/run/ircd:/bin/sh gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh nobody:x:65534:65534:nobody:/nonexistent:/bin/sh libuuid:x:100:101::/var/lib/libuuid:/bin/sh 3. error3： 1. 第一次运行现象： ...... EXT3-fs: barriers not enabled kjournald starting. Commit interval 5 seconds EXT3-fs (mmcblk0p1): warning: checktime reached, running e2fsck is recommended EXT3-fs (mmcblk0p1): using internal journal EXT3-fs (mmcblk0p1): mounted filesystem with writeback data mode VFS: Mounted root (ext3 filesystem) on device 179:1. Freeing init memory: 208K init: Unable to mount /dev filesystem: No such device start: Unknown job: ttymxc0 Ubuntu 12.04.4 LTS localhost.localdomain ttymxc0 localhost login: 2. 第二次运行现象： ...... EXT3-fs: barriers not enabled kjournald starting. Commit interval 5 seconds EXT3-fs (mmcblk0p1): warning: checktime reached, running e2fsck is recommended EXT3-fs (mmcblk0p1): using internal journal EXT3-fs (mmcblk0p1): recovery complete EXT3-fs (mmcblk0p1): mounted filesystem with writeback data mode VFS: Mounted root (ext3 filesystem) on device 179:1. Freeing init memory: 208K Ubuntu 12.04.4 LTS localhost.localdomain ttymxc0 localhost login: 3. 目前没有花时间来分析两次现象不同的原因。
