* [U-Boot] Boot X86 PC from USB using U_boot
@ 2009-12-18 10:43 Sasi, Anoop IN BLR SISL
2009-12-18 12:39 ` Jerry Van Baren
0 siblings, 1 reply; 2+ messages in thread
From: Sasi, Anoop IN BLR SISL @ 2009-12-18 10:43 UTC (permalink / raw)
To: u-boot
Hi all please help me
Am a beginner in Linux. I have a PC with UBUNTU 9.04 installed .
I was trying to boot Linux PC from USB. I could able to boot PC with GRUB installed
in USB .
Is it possible to boot the PC (X86 architecture) from USB with U-Boot in the USB?
What all configuration changes I need do to make this possible?
I have downloaded U-boot then configured and build for X86 architecture (sc520_cdp_config)
And made a bootable partition in usb and copied u-boot image in to it and tried to boot from usb but
It is not working.
Please help me in this.................
With best regards,
Anoop Sasi
^ permalink raw reply [flat|nested] 2+ messages in thread
* [U-Boot] Boot X86 PC from USB using U_boot
2009-12-18 10:43 [U-Boot] Boot X86 PC from USB using U_boot Sasi, Anoop IN BLR SISL
@ 2009-12-18 12:39 ` Jerry Van Baren
0 siblings, 0 replies; 2+ messages in thread
From: Jerry Van Baren @ 2009-12-18 12:39 UTC (permalink / raw)
To: u-boot
Sasi, Anoop IN BLR SISL wrote:
> Hi all please help me
>
> Am a beginner in Linux. I have a PC with UBUNTU 9.04 installed .
> I was trying to boot Linux PC from USB. I could able to boot PC with GRUB installed
> in USB .
>
> Is it possible to boot the PC (X86 architecture) from USB with U-Boot in the USB?
Theoretically, yes. Practically, it would be a *LOT* of work and
require hardware details that you probably cannot get (chipset register
definitions, how to initialize them, etc.).
With GRUB, the manufacturer's BIOS initialize the chipset and then boots
GRUB -> linux based on the already configured hardware. U-Boot
initializes the hardware, so you need the information that the PC BIOS /
hardware manufacturer has (and won't tell you) to replace BIOS+GRUB with
U-Boot.
There is some support for x86 in u-boot, but it is for one (?) specific
x86 CPU, the AMD sc520, and your PC probably isn't running that.
http://git.denx.de/?p=u-boot.git;a=tree;f=cpu/i386;h=cf975ccb545ea90c755b573c1c695fde12d2ba4c;hb=HEAD
> What all configuration changes I need do to make this possible?
That is a huge open-ended question. We don't have an answer.
> I have downloaded U-boot then configured and build for X86 architecture (sc520_cdp_config)
> And made a bootable partition in usb and copied u-boot image in to it and tried to boot from usb but
> It is not working.
You probably don't have a sc520.
> Please help me in this.................
Use the BIOS + GRUB. It works very well.
> With best regards,
> Anoop Sasi
Best regards,
gvb
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2009-12-18 10:43 [U-Boot] Boot X86 PC from USB using U_boot Sasi, Anoop IN BLR SISL
2009-12-18 12:39 ` Jerry Van Baren
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