/***************************************************************************** * RPi 2B Raspbian SD卡内部架构 * 声明： * 本文主要想了解RPi 2B Raspbian SD卡中文件存放方式。 * * 2016-1-29 深圳 南山平山村 曾剑锋 ****************************************************************************/ 一、参考文章： 1. RPi Advanced Setup http://elinux.org/RPi_Advanced_Setup 2. Formatting the SD card via the mkcard.txt script http://downloads.angstrom-distribution.org/demo/beaglebone/mkcard.txt 3. RPi cmdline.txt http://elinux.org/RPi_cmdline.txt 二、总结： 1. RPi 2B Raspbian SD被分区为2个分区(we want to create two partitions. One for the boot image, one for our distro.)： Device Boot Start End Blocks Id System /dev/sdc1 * 1 51 409626 c W95 FAT32 (LBA) /dev/sdc2 52 245 1558305 83 Linux 2. 文件系统类型： cat cmdline.txt ...... rootfstype=ext4 ...... 3. boot分区内容： zengjf@zengjf:/media/boot$ ls -al total 19892 drwx------ 3 myzr myzr 16384 Jan 1 1970 . drwxr-xr-x 5 root root 4096 Jan 29 17:01 .. -rw-r--r-- 1 myzr myzr 9846 Nov 18 16:01 bcm2708-rpi-b.dtb -rw-r--r-- 1 myzr myzr 10125 Nov 18 16:01 bcm2708-rpi-b-plus.dtb -rw-r--r-- 1 myzr myzr 9850 Nov 18 16:01 bcm2708-rpi-cm.dtb -rw-r--r-- 1 myzr myzr 11113 Nov 18 16:01 bcm2709-rpi-2-b.dtb -rw-r--r-- 1 myzr myzr 17900 Nov 18 16:01 bootcode.bin -rw-r--r-- 1 myzr myzr 136 Nov 21 20:28 cmdline.txt -rw-r--r-- 1 myzr myzr 1635 Nov 21 20:28 config.txt -rw-r--r-- 1 myzr myzr 18693 Aug 21 16:04 COPYING.linux -rw-r--r-- 1 myzr myzr 2472 Nov 18 16:01 fixup_cd.dat -rw-r--r-- 1 myzr myzr 6446 Nov 18 16:01 fixup.dat -rw-r--r-- 1 myzr myzr 9684 Nov 18 16:01 fixup_db.dat -rw-r--r-- 1 myzr myzr 9684 Nov 18 16:01 fixup_x.dat -rw-r--r-- 1 myzr myzr 110 Nov 21 21:35 issue.txt -rw-r--r-- 1 myzr myzr 4035396 Nov 18 16:01 kernel7.img -rw-r--r-- 1 myzr myzr 4059512 Nov 18 16:01 kernel.img -rw-r--r-- 1 myzr myzr 1494 Nov 18 16:01 LICENCE.broadcom -rw-r--r-- 1 myzr myzr 18974 Nov 21 21:35 LICENSE.oracle drwx------ 2 myzr myzr 8192 Nov 21 20:32 overlays -rw-r--r-- 1 myzr myzr 604376 Nov 18 16:01 start_cd.elf -rw-r--r-- 1 myzr myzr 4856072 Nov 18 16:01 start_db.elf -rw-r--r-- 1 myzr myzr 2730232 Nov 18 16:01 start.elf -rw-r--r-- 1 myzr myzr 3811048 Nov 18 16:01 start_x.elf 4. ext4文件系统内容： zengjf@zengjf:/media/ad6203a1-ec50-4f44-a1c0-e6c3dd4c9202$ ls -al total 96 drwxr-xr-x 21 root root 4096 Nov 22 04:39 . drwxr-xr-x 5 root root 4096 Jan 29 17:01 .. drwxr-xr-x 2 root root 4096 Nov 22 04:48 bin drwxr-xr-x 3 root root 4096 Nov 22 04:32 boot drwxr-xr-x 4 root root 4096 Nov 22 02:51 dev drwxr-xr-x 108 root root 4096 Nov 22 05:36 etc drwxr-xr-x 3 root root 4096 Nov 22 04:32 home drwxr-xr-x 19 root root 4096 Nov 22 04:48 lib drwx------ 2 root root 16384 Nov 22 03:39 lost+found drwxr-xr-x 2 root root 4096 Nov 22 02:50 media drwxr-xr-x 2 root root 4096 Nov 22 02:50 mnt drwxr-xr-x 6 root root 4096 Nov 22 05:29 opt drwxr-xr-x 2 root root 4096 Jan 7 2015 proc drwx------ 2 root root 4096 Nov 22 02:50 root drwxr-xr-x 5 root root 4096 Nov 22 04:38 run drwxr-xr-x 2 root root 4096 Nov 22 04:48 sbin drwxr-xr-x 2 root root 4096 Nov 22 02:50 srv drwxr-xr-x 2 root root 4096 Apr 12 2015 sys drwxrwxrwt 9 root root 4096 Nov 22 05:36 tmp drwxr-xr-x 10 root root 4096 Nov 22 02:50 usr drwxr-xr-x 11 root root 4096 Nov 22 05:35 var
