[Trisquel-users] Re : Are Big Sacrifice

[lcerf]

You only run one kernel.  The command 'uname -r', executed in a terminal,  
prints the version you are currently running.  In its default configuration,  
the bootloader (GRUB) always boots the latest version of the kernel.  So, you  
need to reboot the system after installing a new version of the kernel, if  
you want to use this newer version.

It is safer to keep an older version that you used long enough to know it  
perfectly drives your hardware.  Usually the version before the one you are  
currently using.  Keeping more is only a waste of space: use the package  
manager to remove older kernels.