树莓派sd卡，如何把linux系统制作成为img镜像。感谢各位。
急急急！！

wait.i tell you how to use linux kernel build a linux system

First,you must have a installed linux system computer and compiled linux kernel.

let's go.
if=/dev/zero of=sd.img bs=1M count=512
/dev/loop0 sd.img
/dev/loop0 (create "/dev/loop0p1", "/dev/loop0p2" primary partitions,"loop0p1 is for boot partition,"loop0p2" is for root partition )
-t ext2 /dev/loop0p1
-t ext4 /dev/loop0p2
/dev/loop0p1 /mnt/boot
/dev/loop0p2 /mnt/root
now,
copy your compiled linux kernel (vmlinuz,system.map,initrd) files to boot partition
create some linux files and command(busybox?) on root partition(you can copy those files from you host system)
grub is come
/>(hd0) sd.img
(hd0,0)
/vmlinuz-xxx
(hd0)
then create your menu.lst on /boot/grub folder
finally,you can modify this sd.img anytime anywhere if you want fuck her.
good luck!

win32diskimager

我备份系统一般是:
sudo dd if=/dev/sda of=/mnt/backup/backup.img
缺点是全盘备份，未使用的也写入了。
看进度是: kill -USR1 pid

我们之前用的是 remastersys


Are you a foreigner.

clonezilla
我以前也有这样的问题： http://www.v2ex.com/t/101249#reply27

如果你要装系统的话，去官网下镜像就好了。
如果你要自己做 dd if=/dev/sd<你的源磁盘> of=backup.img