bottleros/Bootloader/BMFS

BMFS

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

Creating a new, formatted disk image

bmfs disk.image initialize 128M

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

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 and reserve space for it

bmfs disk.image create FileName.Ext

You will be prompted for the size to reserve.

Alternately, you can specify the reserved size after the file name. The reserved size is given in Megabytes and will automatically round up to an even number.

bmfs disk.image create FileName.Ext 4

Read from BMFS to a local file

bmfs disk.image read FileName.Ext

Write a local file to BMFS

bmfs disk.image write FileName.Ext

Delete a file on BMFS

bmfs disk.image delete FileName.Ext