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Old 11-04-2013, 06:05 PM   #1
david_8274
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Is it true that all the embedded linux system must have a MMU?


Hi,

Is it true that in order for an embedded system to run Linux, the system must have an MMU (memory management unit)?

Thanks,
Dave Xu
 
Old 11-05-2013, 10:52 AM   #2
michaelk
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Technically any linux requires a MMU but it does not have to be a physical device...

http://dmitry.gr/index.php?r=05.Proj...ux%20on%208bit
 
Old 11-05-2013, 08:01 PM   #3
jpollard
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No. The MMU support is an option.

Now without MMU support, MOST of linux (and the drivers) will not work, but for extremely cut down kernels it should work.
 
Old 11-05-2013, 09:22 PM   #4
sag47
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When in doubt, read the kernel documentation. I'm sure there are other places MMU docs are mentioned. Clone the source and grep for MMU (e.g. grep -irl 'mmu' Documentation)
 
  


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