Messages in this thread | | | Date | Thu, 30 Jan 2014 16:56:35 -0800 | From | Randy Dunlap <> | Subject | Re: how to use memmap= option |
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On 01/08/2014 06:06 AM, Long Wind wrote: > On 1/8/14, Long Wind <longwind2009@gmail.com> wrote: >> I have asked Debian users, they don't seem to know >> kernel 2.4/2.6 fail to boot on my PC >> probably because it can't detect my memory >> so I have to tell kernel memory map >> >> the following is copied from kernel-parameters.txt: >> >> memmap=exactmap [KNL,X86] Enable setting of an exact >> E820 memory map, as specified by the user. >> Such memmap=exactmap lines can be constructed based on >> BIOS output or other requirements. See the memmap=nn@ss >> option description. >> >> >> >> Could you tell me how to construct memmap= lines? >> > > Sorry, it seems that I have posted wrong list > If you could tell me which list I should join, I will very appreciate > I'm leaving the list
No, this is the correct mailing list for your question (or use linux-mm@kvack.org).
First you obtain a listing of your computer's valid memory map, either from Linux booting on it (maybe not so likely on your computer) or maybe from BIOS SETUP.
With that information, you construct a kernel command line with multiple memmap= options. You can see an example of this here: http://lkml.indiana.edu/hypermail/linux/kernel/0809.1/0664.html
Hope that helps you. -- ~Randy
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