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List:       suse-linux-e
Subject:    Re: [SLE] 80 Gb USB Hard-disk on a P3 Notebook
From:       Catimimi <catimimi () libertysurf ! fr>
Date:       2006-09-08 17:00:48
Message-ID: 4501A1C0.8000503 () libertysurf ! fr
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Rylan Cottrell a écrit :
> To be able to boot of a usb drive you have to change the boot order. I
> have been able to boot my hp dv4000 with damn small linux. However for
> working with grub,I believe grub would have to be installed onto the
> main hd. And you would have to edited it manually to load the kernel
> from usb. It maybe easier to part the main hd into two segments and map
> the home drive and the windows desktop settings to the usb drive. 
>
>   
As I told below, I did exactly all that, booting from USB works without 
any problem
and the first partition will be active, but I think that the other 
partitions on the usb
disk won't be seen by the kernel before the completion of usb detection, 
it is the
reason why I splitted windows XP and Linux between the two disks.
>   
>> Hi,
>> I tried such an experience  this week  with a HP ZD8000 laptop.
>>
>> I tried to install windows and GRUB on the computer's hard disk and 
>> Linux on the USB
>> disk, I met two difficulties :
>>
>> 1 ° Linux SuSE 10.1 installs very well, boots from the DVD with the 
>> option "boot the
>> installed system", but doesn't boot by itself, the problem is that USB 
>> disks are not
>> detected enough early in order to be mounted in time by the boot 
>> scripts, so BOOT failed.
>>
>> 2 ° I was able to install GRUB on hda with SuSE on sda but neither with 
>> Yast nor with
>> grub-install, I had to use grub specific commands : root, find and setup
>>
>> So this way could be usable but I've to modify the scripts embedded in 
>> initrd in order
>> to wait for usb detection and to fill the dev folder ....too lazy ??
>>
>> I didn't yet try to boot the computer from the usb disb (it is able to 
>> boot from usb) and to
>> see if all its partitions are detected by the kernel, but I don't 
>> believe that !! I think I'll meet
>> the same problem.
>>
>> So at this time I installed a small part of windows and of Linux on the 
>> first disk with GRUB and the
>> remainder on the usb disk. But take care if as myself you use 2 usb 
>> disks, they could be called
>> either sda or sdb and fstab won't be able to work. So use in fstab the 
>> /dev/disk/by-id/nnn
>> names, and it works. I'm even able to have the vmware partition on the 
>> usb disk if I use these
>> names. Furthermore I wrote a script in order to mount some linux 
>> partitions after completion
>> of the usb and udev work.
>>
>> It's somewhat complicated but it works, I'm ready to adopt any other 
>> better solution.
>>
>> Michel.
>>
>>
>>
>>
>>
>>
>>     
>
>
>   



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