BMFS

Utility for accessing a disk (or disk image) formatted with BMFS.

Creating a new disk image that boots BareMetal-OS

bmfs disk.image initialize 128M path/to/bmfs_mbr.sys path/to/pure64.sys path/to/kernel64.sys

or if the Pure64 boot loader and BareMetal-OS kernel are combined into one file:

bmfs disk.image initialize 128M path/to/bmfs_mbr.sys path/to/software.sys

Creating a new, formatted disk image

bmfs disk.image initialize 128M

Creating a new, unformatted disk image

Linux/Unix/Mac OS X:

dd if=/dev/zero of=disk.image bs=1M count=128

Windows:

Download contig. Take the size you want in MiB and multiply it by 1048576.

contig -n disk.image 134217728

Formatting a disk image

bmfs disk.image format

In Linux/Unix/Mac OS X you can also format a physical drive by passing the correct path.

sudo bmfs /dev/sdc format

Display BMFS disk contents

bmfs disk.image list

Sample output:

C:\baremetal>utils\bmfs BMFS-256-flat.vmdk list
BMFS-256-flat.vmdk
Disk Size: 256 MiB
Name                            |            Size (B)|      Reserved (MiB)
==========================================================================
test.app                                           31                    2
Another file.app                                    1                    2
helloc.app                                        800                    2

Create a new file entry and allocate space to it

bmfs disk.image create ThisIsATest.file

You will be prompted for the size to reserve.

Read from BMFS to a local file##

bmfs disk.image read ThisIsATest.file

Write a local file to BMFS

bmfs disk.image write ThisIsATest.file

Delete a file on BMFS

bmfs disk.image delete ThisIsATest.file