Problems whent I want update kernel

[Xen]

Yair De la cruz schreef op 23-03-2017 14:19:
> Hi friend
> Ready me output the menuconfig and selected *64, o.k ready.
> But when I exit and put "sudo make", it showed me this output:
> 
> [sudo] password for user:
>   CHK     include/config/kernel.release
>   CHK     include/generated/uapi/linux/version.h
>   CHK     include/generated/utsrelease.h
>   CHK     include/generated/timeconst.h
> /bin/sh: 1: bc: not found
> Kbuild:67: recipe for target 'include/generated/timeconst.h' failed
> make[1]: *** [include/generated/timeconst.h] Error 127
> Makefile:1032: recipe for target 'prepare0' failed
> make: *** [prepare0] Error 2
> 
> what happened?? Help me please.

Apparently it is using the command "bc".

sudo apt install bc

Normally you wouldn't compile as root but go ahead.