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Start Grub4DOS from kexec-loader, possible?


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#1 ilko

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Posted 31 March 2008 - 09:26 PM

Just came across this project:
http://solemnwarning...g/kexec-loader/

Unfortunately it lacks documentation.

The idea- start kexec-loader, it has USB, hopefully USB2 drivers, load Grub4DOS, chainload ntldr/setupldr.bin or ISO boot.
Kexec-loader might help booting from non USB boot friendly motherboards and probably gain USB2 speed on MBs supporting only 1.x speed.

Would someone with greater experience have a look. Would it serve that idea? Would ntldr/setupldr.bin be able to boot successfully when loaded that way? Any thoughts would be appreciated.

ilko

#2 was_jaclaz

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Posted 31 March 2008 - 10:55 PM

It won't work for 2K/XP, a native NT kernel driver with USB 2.0 speed is needed for them.

Come on, you should know that by now, however:
http://www.boot-land...?showtopic=4186
http://www.boot-land...topic=4186&st=5

jaclaz

#3 ilko

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Posted 31 March 2008 - 11:57 PM

I thought it differs from the previously mentioned topics, since there is no ramdisk or .img mapped in memory involved.

Even if ntldr/setupldr.bin won't boot, there is still possible advantages:
1. Iso boot via Grub4DOS big ISO file at full USB 2.0 speed. I start Acronis boot media and Paragon HD manager from ISO for example. On some motherboards it's painfully slow.
2. Same for big hard disk images
3. USB boot from not USB friendly motherboards, start from floppy or CD.
4. May be part of the source code could give clues to Grub4DOS developers how to implement USB stack in grldr, if they have any intentions for that.

#4 was_jaclaz

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Posted 01 April 2008 - 12:23 AM

Yep, it could have several good uses :D, if it was actually a bootloader of some kind, but it seems to me like a "mini-linux" loaded by Syslinux, I don't think it can be useful for anything but a Linux build.... :thumbsup:

....unless there is some way to load the drivers from linux and let them "survive" the chainloading of grub4dos and have them be compatible with grub4dos and make them also compatible with the IS that will be loaded....:tabletalk:

jaclaz

#5 was_jaclaz

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Posted 01 April 2008 - 03:41 PM

Cross-linking to kboot:
http://www.boot-land...opic=4266&st=11

:thumbsup:

jaclaz

#6 milindsmart

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Posted 02 September 2014 - 11:57 AM

Relevant, even though very late : http://en.wikipedia....operative_Linux

#7 Wonko the Sane

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Posted 02 September 2014 - 01:40 PM

Relevant, even though very late : http://en.wikipedia....operative_Linux

 

Sure :), remember to triple post  :w00t: that link under "News". :whistling:

 

JFYI:

http://reboot.pro/to...orking-colinux/

 

And newer releases of kexec-loader (topics here on reboot.pro):

http://reboot.pro/to...loader-changes/

http://reboot.pro/to...loader-rewrite/

http://reboot.pro/to...xec-loader-v20/

http://reboot.pro/to...xec-loader-v21/

http://reboot.pro/to...er-22-released/

http://reboot.pro/to...exec-loader-23/

 

Kboot on sourceforge:

http://kboot.sourceforge.net/

 

And, maybe useful, the other way round, Winkexec:

http://reboot.pro/to...-based-systems/

Now here:

https://stump.io/pro.../wiki/WikiStart

 

 

:duff:

Wonko






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