[yocto] Timestamp error between zImage & uname-a [ Yocto-2.6.1 + Qemux86 ]

[AshishKumar Mishra]

HI Members ,
Good Afternoon.

I am trying to recompile the kernel after changing kernel-config
option and then recompile the kernel using below mentioned steps
    1) bitbake -c menuconfig virtual/kernel
    2) bitbake -c diffconfig virtual/kernel ( copy the config-fragment to
~/Desktop)
    3) bitbake -C deploy linux-yocto       ( to recompile kernel )
    4) runqemu qemux86

The timestamp of files in tmp/deploy/images/qemux86/* is updated
properly
* but the time shown by command "uname -a" always shows *
*older time & is not showing recently compiled times.*

I checked the kernel config options in image , i can see the changes i did
from menuconfig , but not sure / confused as to why the time shown
by "uname -a" is not getting updated.

Basically i am trying to change some kernel-config & check if the compiled
kernel is getting updated or not.

Attached along are the snapshot for the error.

Can members please let me know what am i doing wrong here or missing,

Thanks
Ashish.
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