[Lubuntu-comms] the USB chainloader that helps other USB drives boot NEW: Changing default partition

[Aere Greenway]

Nio:

Thank you very much for the information.  I have encountered situations 
where some USB drives boot on some machines, but not on others.

Also, as a side-note, thank you for the information, because on reading 
one of the links you provided (or was available from one of those 
links), I finally learned how to set up my GRUB configuration so it 
boots (next-time) the partition last booted.

On my primary machine, I have 10 partitions I boot from, so this is very 
useful to me.  In the past, I have had to hit the down-arrow key 11 
times to get to the partition I normally use. Occasionally, I would hit 
the wrong key (a left or right arrow), and it would boot the wrong 
partition, yielding a few choice words of frustration.

I have seen information on how to do this in the past, but I was never 
successful.

I don't remember how I got there, but the link that proved useful was:

https://help.ubuntu.com/community/Grub2/Setup

The information that proved useful (finally) was about 1/3 down the 
page, under the the heading:

/etc/default/grub

It didn't work initially.  The key information making it work, is that 
you need to do it in the partition that is currently the default (which 
probably means you also need to do it in the partition that will become 
the new default, and probably in all of them).

- Aere

On 01/01/2014 08:10 AM, Nio Wiklund wrote:
> Hi Israel,
>
> The USB bootloader is meant to work like your second alternative, to
> help booting from a USB device, that will not boot from the computer's
> own boot menu.
>
> But of course, if it is installed into an internal or eSATA drive, it
> will help booting, but that is better catered for with the '40_custom'
> method described in the following link
>
> https://help.ubuntu.com/community/Installation/FromUSBStick#Chainloading
>
> The USB chainloader will not do the same thing as Plop, so it will be a
> complement, not a replacement.
>
> Best regards
> Nio
>
> 2014-01-01 15:42, Israel skrev:
>> Can you boot computers that have no capability to boot from usb, and
>> have a broken optical drive?
>> Or is this mainly just to boot a USB stick that is not supported by the
>> computer to boot from?
>>
>> On 01/01/2014 05:41 AM, Nio Wiklund wrote:
>>> Good question Jörn,
>>>
>>> The USB chainloader works from USB.
>>>
>>> I know Plop and have used it to boot USB via CD in old computers. I
>>> tried to use Plop from USB. I could make it boot and run its menu, but I
>>> was not able to boot another USB device from it, at least not with the
>>> fairly modern hardware that I tested (for example professional class HP
>>> laptops, the newest one with Intel i5).
>>>
>>> Under the hood the USB chainloader is a stripped system based on Ubuntu
>>> 13.04. The grub bootloader and the boot directory is what is kept, and
>>> the file grub.cfg is modified.
>>>
>>> So I would say that the USB chainloader is a complement to Plop. I'd be
>>> happy if you can help me boot from USB with Plop and chainload into
>>> other USB devices, because it would make it easier to have only one tool
>>> for these similar purposes.
>>>
>>> Best regards
>>> Nio
>>>
>>> 2014-01-01 11:33, Joern skrev:
>>>> What is the difference to Plop boot loader?
>>>>
>>>> Am 01.01.2014 um 05:36 schrieb Nio Wiklund <nio.wiklund at gmail.com>:
>>>>
>>>>> Hi,
>>>>>
>>>>> I just finished a little tool that helps boot some computers from
>>>>> [other] USB boot drives - the Chainloader
>>>>>
>>>>> The chainloader is useful for middle-aged computers, for example
>>>>> computers without a CD/DVD drive, where it can be hard to boot from a
>>>>> USB drive, or when you want to run from a fast USB 3 drive that is
>>>>> unwilling to boot.
>>>>>
>>>>> -o-
>>>>>
>>>>> What is new, why a new tool? Isn't it enough to be able to use mkusb or
>>>>> the other tools?
>>>>>
>>>>> The answer is in this tutorial 'Howto help USB boot drives'
>>>>>
>>>>> http://ubuntuforums.org/showthread.php?t=2196858
>>>>>
>>>>> -o-
>>>>>
>>>>> Phill, can the compressed image file be uploaded to your server? Maybe
>>>>> it is too small to have an own link or page. Maybe it can share a page
>>>>> with mkusb. What do you think?
>>>>>
>>>>> Best regards
>>>>> Nio
>>>>>
>>>>> -- 
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>>
>


-- 
Sincerely,
Aere