building a kernel from a mounted partition

[Valdis.Kletnieks at vt.edu]

On Fri, 24 May 2013 11:05:57 +0300, Andy Johnson said:
> Hello,
> I have a dual boot machine, Ubuntu/Fedora.
> I have a kernel tree on the fedora partition.
> Now, I had build a kernel on the Fedora partition successfully.
>
>  I did **not** change anything in the tree, and then
>
> When I boot into Ubuntu and mount the fedora partition, and
> go there and run "make" , it builds ** all **  the tree again ! any I
> idea why ?
>
> And after the build on Ubuntu is over successfully, if I boot into
> Fedora again and run make, it **again** builds all the tree.
>
> Is there a way to avoid this ?

Check that your timezone is set correctly in both installs - having the
time ping-ponged back and forth at each reboot can cause such issues.

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