C'est du FAQ de vxWorks
LC

Q: How do I create a boot-disk?

A: Creating Bootable Floppy from Boot-ROM:

Open DOS window.
>From DOS window execute tornado\host\x86-win32\bin\torvars (it will fix
environment vars).
>From the location of your boot-rom file (tornado\target\config\
BSP-dir\bootrom_uncmp) type mkboot a: bootrom_uncmp. The mkboot utility
will create a bootable floppy disk
Creating Bootable Hard Disk from Boot-ROM:

1st stage will be to prepare a Hard Disk that will be suitable for
VxWorks environment.
Prepare a Floppy Disk with DOS6.2, FDISK & FORMAT files on it.
Turn off your PC, remove your HD and place VxWorks HD instead.
Boot your PC from DOS 6.2 Floppy Disk.
Run FDISK Create FAT16 2Gbyte partition and set it to be the active
partition.
Exit from FDISK, reboot from the Floppy Disk and format the HD by using
the FORMAT command from the Floppy Disk.
Turn Off your PC, reconnect your original HD, and add VxWorks HD as a
secondary HD (for example as disk D).
Turn ON your PC (Windows NT should be activated).
Open DOS window.
>From DOS window execute tornado\host\x86-win32\bin\torvars (it will fix
environment vars).
>From the location of your boot-rom file (tornado\target\config\
BSP-dir\bootrom_uncmp) copy bootrom_uncmp to file name bootrom.dat.
Type vxsys d: (assuming VxWorks HD is mapped as disk D). The vxsys.com
installs a bootstrap loader that will be used to load bootrom.sys file.

Type vxcopy bootrom.dat d:bootrom.sys. vxcopy copys and converts the
bootrom_uncmp file to the required format.
(From

alain MARCHAND wrote:
> je désire créer une application sur compatible PC qui démarre à la mise sous
> tension directement à partir du disque dur (sans téléchargement). vxworks
> 5.4 et tornade 2.0.2