Create partition in FFS images.

Linux and Unix-Like Linux
1

Hi,

Firstly, I created a 50MB image using:

dd if=/dev/zero of=./disk.img bs=1MiB count=48

Then I formatted it using:

mkfs.ufs ./disk.img

This worked correctly as stated by the output of:

raphaelsc@debian:~/Desktop/FFS$ file disk.img
disk.img: Unix Fast File system [v2] (little-endian) las
number of cylinder groups 4, block size 16384, fragment 
, minimum percentage of free blocks 8, TIME optimization

However, I don't know how to create a partition in the disk image. I tried to use fdisk to create the partition, but it seems not to be correct.
I already compiled my kernel with the required options:
CONFIG_UFS_FS_WRITE and CONFIG_UFS_FS

What should I do to create a UFS (FFS) partition with boot flag set on?

Regards,
Raphael S.C

2

if no better answers, from man fdisk on debian 7 ...

SEE ALSO
       cfdisk(8), sfdisk(8), mkfs(8), parted(8), partprobe(8), kpartx(8)