1. Busybox
compiling config
a.
Don’t set the static library.
b.
Should set up the cross compile prefix.
c.
Set ‘Not support big files’
d.
Set ‘Not use local /usr’
2. Compile
busybox
a.
make menuconfig
b.
make
c.
make install
d.
the default installing directory for busybox is
busybox_root/_install
3. If
using initramfs format as rootfs, when compiling kernel we should set up
kernel’s config file to support initramfs. Including the following setting:
CONFIG_INITRAMFS_SOURCE="/home/project/a/busybox/_install" (this
directory _install is from the above step 3)
The above path is rootfs’s directories path.
When compiling kernel, it will create the cpio.gz file
in
kernel_root/usr/initramfs_data.cpio.gz.
At
the same time, the rootfs will be compiled with kernel image. So the file Image
includes kernel and rootfs.
