Ubuntu

grub boot

Asked by ngausepohl

I'm making that move away from Windows and have found
that ubuntu is the answer. I have a couple year old Toshiba Satellite laptop. I am tired of all the window vulnerabilities and chose to not partition the harddrive. To my knowledge I fully installed the OS, Although I believe I have a grub
boot problem. I have followed the instruction provided on https://help.ubuntu.com/community/GrubHowto,
When I attempt to boot all it shows is GRUB on a black screen, have I not configured something? Have I forgotten something.

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weldan jamili (ibnujamili) said : 		#1
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manteros (manteros) said : 		#2

first do you already try the live cd wether ur laptop support ubuntu or not... also for ubuntu version 6.06 above need minimum of 256RAM and above but if u using below 256 RAM then better used an older version of ubuntu

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John Arthur Fensome (fensj) said : 		#3

BugFix:

Grub Loader problems:- "OS will not boot halts at Grub loader" as seen in versions 5.04 / 6.06 / 6.10 / 7.04 (& beta) / 7.10

Most of these are created by the grub loader reading (or attempting to read) an area that it can't see because of the DMA settings.

Fix: Rather simple really go into your BIOS and reset the IDE hard-drive settings from (Auto) to a DMA mode the hard-drvie does not recognise,

 e.g. On the following two motherboards, Asus A8V Deluxe (model A + B I'm building two for friends) and Asus A7V 880, the hard-drives are seen automatically and the drives set according to the reported back DMA mode is auto-selected (using Seagate Barracuda 120gb, 250gb, and 320gb ATA {also known as PATA} 16mb cache drives are seen as UDMA modes 5 and 6, and Hitachi Deskstar 80gb (these drives are the same as IBM I believe.)

 Set the value to one NOT recognised by the drive (ignore motherboard modes) and set them to UDMA 4, if your drive uses DMA4 or UDMA 4 use a lower value or adjust accordingly.

 This will force the grub loader to read the relevant DMA/UDMA mode directly from the drive and not from the motherboard BIOS, so it then selects the correct mode and can read the drive. (If it trys to read from the motherboard BIOS it stalls and this is where the problem [BUG] occurs.

Acknowledgements:-

 This information was gleaned from the web pages at http://www.ubuntulinux.org {it is not my own}

 I hope that this helps people fix the majority of the Grub booting problem[s].

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