Re: [ECOS] How to let i386 pc boot from Hdd

Re: [ECOS] How to let i386 pc boot from Hdd

[Roman Khvatov]

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Hi!

> Hi, Roman
> 
> Can you elaborate?  Like John, I am also encountering this problem.  I am 
> thinking of putting the application, data etc into the same harddisk and get it 
> to boot up and run.

I'd got a loaders, but archive size of it (121K) seems to me too large to post it through
mail list, so if anyone can take this archive and place it on some ftp or web site I'll
appreciate this.

Just for now I can only post wallclock device driver for PC :)

Roman.

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end

Re: [ECOS] How to let i386 pc boot from Hdd

[Jonathan Larmour]

Roman Khvatov wrote:
> 
> Just for now I can only post wallclock device driver for PC :)

It would be quite good if we could bring this into the main eCos sources.
But to do that, we need a copyright assignment. Can I ask you to read
http://sources.redhat.com/ecos/faq.html#contrib_assign and send us an
assignment form, assuming the work is all your own.

Thanks for contributing back!

Jifl
-- 
Red Hat, Rustat House, Clifton Road, Cambridge, UK. Tel: +44 (1223) 271062
Maybe this world is another planet's Hell -Aldous Huxley || Opinions==mine

Re: [ECOS] How to let i386 pc boot from Hdd

[Roman Khvatov]

Hi!

> 
> Can you elaborate?  

Yes.

> Like John, I am also encountering this problem.  I am 
> thinking of putting the application, data etc into the same harddisk and get it 
> to boot up and run.

This loaders use a compressed image of system to load, so a full pack consists of 4 programs -
2 loaders (MS-DOS and MBR mode), image packer (slightly modified example from LZO package) and
formatter (to put MBR mode loader in its place and setup file system on HDD, if need to).

All of this made with BC3.1 and TASM and use LZO library, so I don't know about availability of
this tool to build a programs :(

But sources will be available in any case :) (May be tomorrow)

Roman

Re: [ECOS] How to let i386 pc boot from Hdd

[Teng Chee Wan Philip]

Hi, Roman

Can you elaborate?  Like John, I am also encountering this problem.  I am 
thinking of putting the application, data etc into the same harddisk and get it 
to boot up and run.

Thanks a lot.

regards,
Philip Teng
DSO National Labs

Quoting Roman  Khvatov <roman@lab.sun.mcst.ru>:

> Hi!
> 
> > Hi,
> > 
> > I'd like to let i386 pc boot from hard disk drive.
> > I have an image of ecos application that can boot from floppy.
> > Can I use this image to boot from hdd?
> 
> No. You have to modify the boot device parameters in boot procedure
> (device number from 0 to 80h, sectors per track and head counters)
> After this you can boot from one particular HDD, which parameters you
> use to modify boot code.
> 
> If you need to boot not only from one HDD and use it for file system
> too
> you need to rewrite boot procedure completly or use some external boot
> utility.
> 
> Roman.
> 
> PS. I've made 2 such utility - one for boot eCos application from
> MS-DOS,
> and second to boot eCos application from MBR (application still must
> be
> an MS-DOS file).
> 

Re: [ECOS] How to let i386 pc boot from Hdd

[Roman Khvatov]

Hi!

> Hi,
> 
> I'd like to let i386 pc boot from hard disk drive.
> I have an image of ecos application that can boot from floppy.
> Can I use this image to boot from hdd?

No. You have to modify the boot device parameters in boot procedure
(device number from 0 to 80h, sectors per track and head counters)
After this you can boot from one particular HDD, which parameters you
use to modify boot code.

If you need to boot not only from one HDD and use it for file system too
you need to rewrite boot procedure completly or use some external boot
utility.

Roman.

PS. I've made 2 such utility - one for boot eCos application from MS-DOS,
and second to boot eCos application from MBR (application still must be
an MS-DOS file).

[ECOS] How to let i386 pc boot from Hdd

[John]

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Hi,

I'd like to let i386 pc boot from hard disk drive.
I have an image of ecos application that can boot from floppy.
Can I use this image to boot from hdd?
I use
  dd conv=sync if=hello.bin of=/dev/hdb
to transfer boot image.
But fail to boot.
Thanks in advance.

----
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