kernel compilation question

Ainsley Pereira marble at linuxfromscratch.org
Wed Jan 10 11:23:56 PST 2001


Hello,

In message <4AD54A600DD9D411B1E900D0B73C4AEB07E70D at zorm-mail.legato.com>
          Seth Payne <SPayne at Legato.com> wrote:

> When compiling the kernel, what is the difference between make:
> 
> bzImage
> zImage

The compression. The kernel image is compressed on disk, and uncompresses
itself (that's the first line you see after you select it in LILO, remember?)

bz compression algorithms are generally better.

Incidentally, if you think it might be faster to store it uncompressed, you
could be wrong; the cpu time to uncompress it is probably less than the extra
time reading more data from disk would take. (Of course, that depends on the
speed of your processor & disks, and the size of your kernel, feel free to
experiment.)

~A.

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   / Ainsley Pereira       /   aka Marble on Snowplains   /
  /                       / telnet://snowplains.org:3456 /
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