My System Crashed ands unable to Boot

[Gaurishankar]

Hi Users,

I was performing upgrade and it gave DPKG error. Now unable to boot the system. It is giving whole lot of Services Failure  and not going ahead of Splash screen.

I am not getting the Terminal prompt also.
How to go in safe mode and boot from earlier kernel .

Request help.

Thanks & Regards
Gaurishankar
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9821902676
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