[Trisquel-users] Re : Bluetooth and Trisquel 8

[lcerf]

There is basically no risk: when you install another kernel, the previous  
version is still there.  It is not substituted.  So you can still boot the  
previous version from GRUB's menu (the default bootloader, you certainly have  
not changed it) if the new one does not work.  And you can then remove the  
malfunctioning version of the kernel and maybe install yet another one.   
Anyway, as Beformed wrote, there is little reason for a newer version of the  
kernel to not work at least as well as the older version (well, unless you  
have antique hardware).