How does one update the kernel to latest development version

[anika200]

I would like to try new kernels and then safely go back if there are problems, how can I do this?
If this is documented somewhere else let me know.

I see the kernels here http://kernel.ubuntu.com/~kernel-ppa...v3.18.2-vivid/ and I guess I would add that ppa and install it.

Here are my concerns:
If I add the ppa and install newer kernel, can I easily go back to the one I am using now?
How would I keep the current kernel image and things needed Always in the grub menu no matter how many kernel updates happen?
Which kernel branch will be offered as as upgrade when one happens, the one that comes with 14.04 or the new kernel mainline ppa update?

[NickStone]

Will this help? http://askubuntu.com/questions/11908...distro-upgrade
The info is old but the process should still be the same.

[vinnywright]

I would like to try new kernels and then safely go back if there are problems, how can I do this?
If this is documented somewhere else let me know.

I see the kernels here http://kernel.ubuntu.com/~kernel-ppa...v3.18.2-vivid/ and I guess I would add that ppa and install it.

no nead to add the PPA just download the headers and image .deb's for the kernel you want to try ,,,,(that would be 3 of the 9 in your link 1headers----all.deb 1headers--generic-amd64.deb and 1image--generic-amd64.deb,,,,assuming you want the 64-bit stuff) put them in a folder by their selves ,,,,,,open a terminal in that folder and

sudo dpkg -i *.deb

and then

sudo update-grub

and reboot.

Here are my concerns:
If I add the ppa and install newer kernel, can I easily go back to the one I am using now?

yes ,,,,but do not add the ppa .

How would I keep the current kernel image and things needed Always in the grub menu no matter how many kernel updates happen?

all kernels weather added by you or an update stay in the grub menu untill you remove/purge them from the system and re-run "sudo update-grub"

you should allways keep 2 kernels ,,,,the newest one you have and the last known well working one as a back up .

how meny do you have now?

ls /boot | grep vm

will tell you ,,,,,,,,like so

vinny@vinny-Bonobo-Extreme:~$ ls /boot | grep vm
vmlinuz-3.13.0-32-generic
vmlinuz-3.13.0-37-generic
vmlinuz-3.13.0-39-generic
vmlinuz-3.13.0-40-generic
vmlinuz-3.13.0-43-generic

oops ,,,time to purge 3 of them @hear

VINNY

[anika200]

Thanks for the great info vinnywright .

[vinnywright]

Thanks for the great info vinnywright .

,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Maryland hay ,,,,,,, I was born in DC and grew up in Beltsville MD .

VINNY