Multiple Distro's..

[Marc Bantle]

Hi,

Al Johnson schrieb:
> On Saturday 24 October 2009, Marc Bantle wrote:
>   
>> Hi,
>>
>> Aditya Gandhi schrieb:
>>     
>>> Hi guys, I'm expecting my Free Runner in a day or two....
>>> I wish to know as to how many distributions can I Run side by side ,
>>>       
>> I think the maximum is seven without extra efforts.
>> A possible setup could look like this:
>>
>> Device
>> Number   Media   /dev       Partition Type     Content
>> 31,  6   NAND    mtdblock6                      Dist1
>> 179, 0   SD-Card mmcblk0    (raw device)
>> 179, 1   SD-Card mmcblk0p1  primary partition   Dist2
>> 179, 2   SD-Card mmcblk0p2  primary partition   Dist3
>> 179, 3   SD-Card mmcblk0p3  primary partition   Dist4
>> 179, 4   SD-Card mmcblk0p4  extended partition  logical partitions
>> 179, 5   SD-Card mmcblk0p5  logical partition   Dist5
>> 179, 6   SD-Card mmcblk0p6  logical partition   Dist6
>> 179, 7   SD-Card mmcblk0p7  logical partition   Dist7
>>
>> Off course you can choose a different
>> primary/logical ratio.
>>     
>
> This is correct for uboot, though there are a few possible complications:
> * Android will want to use 2 partitions, by default the first two, plus the 
> NAND. Then again it will (by default) install a forked Qi too, which doesn't 
> multiboot well anyway.
>   

I've never tried Android. Lucky me ;-)
Anyway thanks for adding this.

> * Certain ext3 formatting options prevent uboot reading the partition, but I 
> haven't checked which ones. My gentoo box makes unreadable ones by default, 
> but fedora makes readable ones.
>   

Never ran into this either - using Debian.

>>> Is there a guide to multiple OS on freerunner?
>>>       
>> http://wiki.openmoko.org/wiki/Booting_from_SD
>>
>> I just had a look. A lot of the information
>> is just wrong or at least outdated. I now
>> understand why most users install qi ;-)
>>
>> Various efforts have been made to supply a
>> bootmenu for qi (e.g. by using kexec).
>> I don't know whether they where successful.
>>
>> I still stay with u-boot for my multi dist
>> setup, cause it has a boot menu. It's only
>> constraint is that the kernel need's to be
>> within the first 2G of the SD-Card (I just
>> prepared a special subdirectory on the first
>> partition). Booting  kernels >2M need special
>> boot parameters, but has been reported to
>> work on this list.
>>     
>
> This is itself wrong, as I'm booting kernels from beyond the first 2G, and 
> probably beyond 4G.
>   

Good to know. Last time I tried I didn't succeed.

Cheers,
Marc


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