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Re: How to compile the kernel identical to the vanilla one?
On Jul 24, 2013, at 8:02 PM, Edwina Ng <edwinang68%gmail.com@localhost> wrote:
> I have extracted the configuration of /netbsd after a vanilla installation
> with config(1), then untar the syssrc.tgz from source/sets and build the
> kernel. The file netbsd generated in the build directory is not the same file
> size as the one in the root directory.
> I save the kernel that I have built, delete the build directory and started
> again afresh. The resultant netbsd has the same file size of the previous one
> yet, cmp(1) says there are some different.
> So my question is, given the same source, same kernel config file, same tool
> chain and same platform, is that possible for two systems to produce
> identical compiled kernel images? If not, what is the reason? If yes, which
> step did I miss?
you probably need MKREPRO=yes when building the kernel to remove things like
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