Messages in this thread | | | Date | Wed, 07 Apr 1999 02:17:30 -0400 | From | Brian Gerst <> | Subject | Re: System is too big |
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Cameron Simpson wrote: > On 7 Apr 1999, in message <Pine.LNX.3.95.990406154453.2608A-100000@chaos.analogic.com> > | make bzImage > > Everyone says this, and I know it works (had to figure it out myself > some months ago) but I'd like to know: bzip2 is a better compression; > if it's just the better compression ratio then people could be bitten > by this again in a while, with no fallback. If, on the other hand, the > bzImage is a fundamentally different storage layout without this > (undocumented?) size limit, why make a zImage at all these days?
make bzImage does not use bzip2 compression. It is a "big zImage". It changes some things so that the kernel image can be loaded directly into extended memory. The reason there is a size limitation on a zImage is that is is loaded into conventional memory (first 640k), since the processor is still in real mode while the kernel is loaded.
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Brian Gerst
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