Installing Ubuntu 14.04 (Trusty) on HP Envy 17 and upgrading to new versions

Install guake and add it to the startup apps
Install clipit, audacious
Install indicator-multiload
Install CCSM (sudo apt-get install compizconfig-settings-manager)
Install vim, geany, openssh-server, pidgin
Secure the SSH server by installing fail2ban/denyhosts + review sshd config
Install notecase from deb file on sourceforge (need to install following packages to get it to work: libgnomevfs2-0, libgnomevfs2-extra, libgtksourceview2.0-0)
Install java in /usr/lib/jvm and create link to it. Update update-alternatives
Copy over /etc/hosts and ~/.ssh/
Install conky and add it to the startup apps
Keyboard shortcuts (Add customs shortcut for shutdown, “gnome-session-quit --reboot”, Ctrl+Alt+Del)
Move Firefox cache to /var/tmp/firefox-cache
Install tuxcmd and tuxcmd-modules (You will need to change the default scrollbar overlay to normal/legacy)
Install Ubuntu tweak (http://blog.ubuntu-tweak.com/2014/04/21/ubuntu-tweak-0-8-7-released-14-04-ready.html)
Install gconf-editor

Upgrade from Trusty (14.04) to Utopic (14.10)

7 Things to Do After Installing Ubuntu 14.10 Utopic Unicorn - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2014/10/7-things-to-do-after-installing-ubuntu-14-10-utopic-unicorn

14 Things to Do After Installing Ubuntu 14.10 (Utopic Unicorn)

http://www.tecmint.com/things-to-do-after-installing-ubuntu-14-10/

Add missing PPAs:

Opera

wget -O - http://deb.opera.com/archive.key | sudo apt-key add -

sudo sh -c 'echo "deb http://deb.opera.com/opera/ stable non-free" >> /etc/apt/sources.list’

VirtualBox

sudo apt-get install dkms

wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | sudo apt-key add -

sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian trusty contrib" >> /etc/apt/sources.list’

Pidgin

sudo add-apt-repository ppa:pidgin-developers/ppa

Google Talk Plugin

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -

sudo sh -c 'echo "deb http://dl.google.com/linux/talkplugin/deb/ stable main" >> /etc/apt/sources.list'

Classic Menu

sudo add-apt-repository ppa:diesch/testing

sudo apt-get update && sudo apt-get install classicmenu-indicator

Sublime 2

sudo add-apt-repository ppa:webupd8team/sublime-text-2

Window-List

sudo add-apt-repository ppa:jwigley/window-list

Grub Customizer

sudo add-apt-repository ppa:danielrichter2007/grub-customizer

Disable Guake tab renaming each time you change folder:

vim ~/.gconf/apps/guake/general/%gconf.xml

There should be an entry something like this:

<entry name="use_vte_titles" mtime="1404143215" type="bool" value="true"/>
Just change it to:

<entry name="use_vte_titles" mtime="1404143215" type="bool" value="false"/>
Save the file and restart guake.

More info: http://askubuntu.com/questions/254566/annoying-autorenaming-in-guake

Disable the 2nd HDD after x minutes:

Use info from here: http://info4admins.com/tips-to-spindown-your-hard-disk-in-debian-or-ubuntu/

Added info in /etc/hdparm.conf like this

/dev/sdb {

spindown_time = 240 # 20 min

}

Install openconnect VPN support

sudo apt-get install openconnect && sudo apt-get install network-manager-openconnect

Then go to the network manager->VPN connections->Configure VPN. Then add, choose Cisco Anyconnect for the connection type, then choose a name for the connection and use "vpn.osl.basefarm.net" for the gateway. Then Save.

If you do not see the Cisco Anyconnect choice of connection type in the network-manager applet, you might want to try this:

sudo apt-get install --reinstall network-manager network-manager-gnome network-manager-openconnect network-manager-openconnect-gnome
sudo service network-manager restart

Geany:

Get a whole bunch of schemes from github

Once you have copied all the conf files in ~/.config/geany/colorschemes, you can just your theme from View->Editor-Color Scheme.

Also select everything in View->Editor, except Line Endings

Install the prettyprinter for Geany to properly format XML files easily (remember to enable the plugin afterwards!):

sudo apt-get install geany-plugin-prettyprinter

Shortcuts:

Ctrl+Alt+Del: Restart/Shutdown (gnome-session-quit --reboot)
Ctrl+Alt+Backspace: Suspend (dbus-send --system --print-reply --dest=org.freedesktop.login1 /org/freedesktop/login1 "org.freedesktop.login1.Manager.Suspend" boolean:true)
Ctrl+Alt+Backslash: Logout (Configure in Shortcuts->System)
Lock Screen (define in CCSM Unity plugin and System Setting->Keyboard->Shortcut Tab)
In the Ubuntu plugin of CCSM->Desktop, I changed the “Key to show the launcher” to Super+q so that I can use Super in other shortcuts
Disable Caps Locks

CCSM:

install CompizConfig Setting Manager (CCSM)
add the plugins via “sudo apt-get install compiz-plugins”

Tools:

Advanced Settings (sudo apt-get install gnome-tweak-tool)
i-nex for HW stats and info (http://i-nex.linux.pl/install/)

Bluetooth setting for XUbuntu:

Run this command if no sound going to the bluetooth device: pactl load-module module-bluetooth-discover

SSH-agent, ssh-add, gnome-keyring

Already for some releases, ubuntu uses the gnome-keyring to store the ssh keys. Here is some info if you want to be able to control them via ssh-add again:

Bug #1387303 “regression: gnome-keyring components can't be disa...” : Bugs : gnome-keyring package

https://bugs.launchpad.net/ubuntu/+source/gnome-keyring/+bug/1387303

Ubuntu: disable Gnome Keyring SSH Agent (make Ubuntu NOT remember SSH private key passwords)

http://blogs.bu.edu/mhirsch/2013/09/ubuntu-disable-gnome-keyring-ssh-agent-make-ubuntu-not-remember-ssh-private-key-passwords/

Projects/GnomeKeyring/Ssh - GNOME Wiki!

https://wiki.gnome.org/Projects/GnomeKeyring/Ssh

Later

Unity launcher for Intellij duplicate after application loading - Ask Ubuntu

http://askubuntu.com/questions/470554/unity-launcher-for-intellij-duplicate-after-application-loading

Install IntelliJ 13.1 in Ubuntu 14.04 - Sysads Gazette

http://www.sysads.co.uk/2014/06/install-intellij-13-1-ubuntu-14-04/

Custom Launcher for IntelliJ IDEA in Ubuntu Unity | nuf said

http://nufailm.blogspot.no/2012/05/custom-launcher-for-intellij-idea-in.html

Upgrade from Utopic (14.10) to Vivid (15.04)

Guake 0.7.0 Released - A Drop-Down Terminal for Gnome Desktops

http://www.tecmint.com/install-guake-terminal-ubuntu-mint-fedora/

mp3gain has been removed from Ubuntu since 15.04.

Install manually from here:

https://launchpad.net/ubuntu/vivid/+package/mp3gain

https://launchpad.net/ubuntu/vivid/amd64/mp3gain/1.5.2-r2-6

How can I edit a picture into an existing PDF file?

http://askubuntu.com/questions/167274/how-can-i-edit-a-picture-into-an-existing-pdf-file

In Ubuntu you might need to install LibreOffice Extension for Importing PDF Files which you can do by running:

“sudo apt-get install libreoffice-pdfimport”

Then open the PDF in Draw and insert the image file with your signature

How to get 1080p in Youtube's HTML5 player in Firefox

http://www.linuxveda.com/2015/06/29/get-1080p-youtubes-html5-player-firefox-linux/

How to get access to Facebook Messenger via Pidgin

run: wget -O- https://jgeboski.github.io/obs.key | sudo apt-key add -
Add “deb http://download.opensuse.org/repositories/home:/jgeboski/xUbuntu_15.04 ./” to your apt software sources
run: sudo apt-get update
run: sudo apt-get install purple-facebook
Restart Pidgin if already running, then add account using the “Facebook” protocol, not “Facebook (xmpp)”

More info:

https://jgeboski.github.io/#package-repositories

https://github.com/jgeboski/purple-facebook/wiki

Upgrade from Vivid (15.04) to Wily (15.10)

Ubuntu 15.10 Available to Download, This Is What's New

http://www.omgubuntu.co.uk/2015/10/ubuntu-15-10-download-review-new-features

10 Things To Do After Installing Ubuntu 15.10 - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2015/10/10-things-to-do-after-installing-ubuntu-15-10

Guake: how to change the default label to “term”

Go to /usr/lib/python2.7/dist-packages/guake and open guake_app.py

Around line 1570, change Terminal to term

How to change the default title of your terminals so it does not say “Terminal”. Add this line to your .bashrc:

PROMPT_COMMAND='echo -ne "\033]0;term\007"'

How to install autojump (https://github.com/wting/autojump):

sudo apt-get install autojump

sudo ln -s /usr/share/autojump/autojump.sh /etc/profile.d/

And add this to your ~/.bashrc:

export PROMPT_COMMAND="${PROMPT_COMMAND:+$PROMPT_COMMAND ;} history -a"

Upgrade from Wily (15.10) to Xenial (16.04)

Ubuntu 16.04 LTS Is Now Available to Download

http://www.omgubuntu.co.uk/2016/04/ubuntu-16-04-download-new-features

16 Things To Do After Installing Ubuntu 16.04 LTS - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2016/04/10-things-to-do-after-installing-ubuntu-16-04-lts

See What's New in Ubuntu 16.04 LTS Flavors - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2016/04/see-whats-new-ubuntu-16-04-flavors-screenshot

Temporarily Disable Notifications In Ubuntu (w/ Unity 7) With NoNotifications Indicator

http://www.webupd8.org/2016/05/temporarily-disable-notifications-in.html

And more info at https://askubuntu.com/questions/769948/is-there-a-dont-disturb-option-to-temporarily-hide-notifications-like-on-mac

Startup command: /bin/bash -c "sleep 15 && /opt/nonotifs/nonotifs/run_nn"

Use mpv instead for mplayer.

And install the latest smplayer for proper mpv support (http://smplayer.sourceforge.net/en/downloads)

Chat With Your Skype Friends From Pidgin With SkypeWeb Plugin (Ubuntu PPA)

http://www.webupd8.org/2016/07/chat-with-your-skype-friends-from.html

gContactSync :: Add-ons for Thunderbird

"Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts"

https://addons.mozilla.org/en-US/thunderbird/addon/gcontactsync/

Install Redshift/F-Lux for less blue light at night:

“sudo apt-get install redshift redshift-gtk” then start the widget with redshift-gtk
http://ubuntuhandbook.org/index.php/2016/03/install-f-lux-in-ubuntu-16-04/

2 Handy 'Places' Indicators for the Ubuntu Unity Desktop

http://www.omgubuntu.co.uk/2016/11/places-indicator-applet-ubuntu-unity-desktop

Startup command: /bin/bash -c "sleep 18 && /opt/placesfiles/code/placesfiles"

Upgrade from Xenial (16.04) to Yakkety (16.10)

Ubuntu 16.10 Released, Ready to Download

http://www.omgubuntu.co.uk/2016/10/download-ubuntu-16-10-new-features

16 Things To Do After Installing Ubuntu 16.10

http://www.omgubuntu.co.uk/2016/10/things-to-do-after-installing-ubuntu-16-10

Got stuck during upgrade. More info here:

[SOLVED] Upgrading to 16.10 stuck during install

https://ubuntuforums.org/showthread.php?t=2344225

New syntax for Conky config file:

Convert to new 1.10 syntax · brndnmtthws/conky Wiki

https://github.com/brndnmtthws/conky/wiki/Convert-to-new-1.10-syntax

Conky configuration new setting syntax

https://tunwinnaing.wordpress.com/2015/10/04/conky-configuration-new-setting-syntax/

Problem with network manager not managing ethernet device:

Re-installed Realtek drivers
Manually added configuration in /etc/network/interfaces

More info: http://askubuntu.com/questions/698725/i-cant-connect-to-ethernet-in-ubuntu-15-10

Configure Static IP Address and Set DNS in Ubuntu 15.10 Desktop and Server http://www.tecmint.com/set-static-ip-address-in-ubuntu-15-10-server/

Might also need to disable IPv6, by adding this to /etc/sysctl.conf

net.ipv6.conf.all.disable_ipv6=1

net.ipv6.conf.default.disable_ipv6=1

net.ipv6.conf.lo.disable_ipv6=1

Install ACE Player:

Acestream on Ubuntu 16.04

https://lisakov.com/en/blog/acestream-ubuntu-16.04/

Upgrade from Yakkety (16.10) to Zesty (17.04)

17 Things To Do After Installing Ubuntu 17.04

http://www.omgubuntu.co.uk/2017/04/things-to-do-after-installing-ubuntu-17-04

The Skype Redesign Everyone Hates Is Now Available on Linux - OMG! Ubuntu!

"Download Skype for Linux Preview"

http://www.omgubuntu.co.uk/2017/08/skype-redesign-everyone-hates-now-available-linux

How to Install Pale Moon Web Browser in Ubuntu 16.04 - Tips on Ubuntu

http://tipsonubuntu.com/2016/07/16/install-pale-moon-ubuntu-16-04/

sudo sh -c "echo 'deb http://download.opensuse.org/repositories/home:/stevenpusser/xUbuntu_17.04/ /' >> /etc/apt/sources.list.d/palemoon.list"

wget -q http://download.opensuse.org/repositories/home:/stevenpusser/xUbuntu_17.04/Release.key -O- | sudo apt-key add -

sudo apt update

sudo apt install palemoon

How to install Waterfox via repo

It is all here: https://github.com/hawkeye116477/waterfox-deb

echo "deb https://dl.bintray.com/hawkeye116477/waterfox-deb release main" | sudo tee -a /etc/apt/sources.list

curl https://bintray.com/user/downloadSubjectPublicKey?username=hawkeye116477 | sudo apt-key add -

sudo apt update

sudo apt install waterfox

How to install Brave Browser via repo

- curl https://s3-us-west-2.amazonaws.com/brave-apt/keys.asc | sudo apt-key add -

- echo "deb [arch=amd64] https://s3-us-west-2.amazonaws.com/brave-apt `lsb_release -sc` main" | sudo tee -a /etc/apt/sources.list.d/brave-`lsb_release -sc`.list

- sudo apt update

- sudo apt upgrade

New extensions for Firefox 57+

https://addons.mozilla.org/en-US/firefox/addon/copy-linktab-name-and-url/

https://addons.mozilla.org/en-US/firefox/addon/tab-session-manager/

https://addons.mozilla.org/en-US/firefox/addon/ip-address-and-domain-info/

https://addons.mozilla.org/en-US/firefox/addon/print-friendly-pdf/

https://addons.mozilla.org/en-US/firefox/addon/privacy-badger17/

https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/

https://addons.mozilla.org/en-US/firefox/addon/dictionary-anywhere/

https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/

https://addons.mozilla.org/en-US/firefox/addon/text-linky-tool/

https://addons.mozilla.org/en-US/firefox/addon/web-developer/

https://addons.mozilla.org/en-US/firefox/addon/foxytab/

Shorter man pages in bash:

If you're tired of reading long man-pages: https://tldr.sh/

$ sudo wget -qO ~/bin/tldr https://4e4.win/tldr

$ sudo chmod +x ~/bin/tldr

$ tldr less

Upgrade from Zesty (17.04) to Artful (17.10)

Why Ubuntu MATE 17.10 Could Be Your New Favorite Linux Distro?

https://fossbytes.com/ubuntu-mate-17-10-linux-distro/

Ubuntu 17.10: Back to a GNOME Future

https://www.linux.com/learn/intro-to-linux/2017/7/ubuntu-1710-back-gnome-future

My Ubuntu Gnome Customisation

https://www.youtube.com/watch?v=iuvqdLNCMJM

Update to Sublime Text 3

Linux Package Manager Repositories – Sublime Text 3 Documentation

https://www.sublimetext.com/docs/3/linux_repositories.html

Download - Sublime Text

https://www.sublimetext.com/3

Ubuntu 17.10 Now Available to Download, This Is What's New - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2017/10/ubuntu-17-10-release-features

10 Things To Do After Installing Ubuntu 17.10 - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2017/10/things-to-do-after-installing-ubuntu-17-10

How to Enable Night Light on Ubuntu 17.10 - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2017/10/enable-night-light-mode-on-ubuntu

How To Install Vanilla GNOME Shell on Ubuntu 17.10 - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2017/10/install-vanilla-gnome-shell-ubuntu-17-10

How To Remove the Unity Desktop from Ubuntu 17.10 - OMG! Ubuntu!

http://www.omgubuntu.co.uk/2017/10/remove-unity-desktop-ubuntu-17-10

Shortcuts (some) not working anymore in Unity:

$ unity-settings-daemon --debug -r

More info: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1727842

$ compiz --replace

$ sudo apt-get install gdm

$ sudo dpkg-reconfigure gdm

More info: http://www.webupd8.org/2011/07/how-to-switch-between-gdm-lightdm-or.html

Upgrade from Artful (17.10) to Bionic (18.04)

Ubuntu 18.04 LTS Released, This is What's New - OMG! Ubuntu! https://www.omgubuntu.co.uk/2018/04/ubuntu-18-04-download-release-features

11 Things To Do After Installing Ubuntu 18.04 LTS - OMG! Ubuntu! https://www.omgubuntu.co.uk/2018/04/things-to-do-after-installing-ubuntu-18-04

Ubuntu MATE 18.04 - YouTube https://www.youtube.com/watch?v=V6kth-4M62o

How to Connect Your Android Phone to Ubuntu Wirelessly

https://www.omgubuntu.co.uk/2018/11/connect-android-ubuntu-gsconnect

Upgrade from Bionic (18.04) to Cosmic (18.10)

18 Things To Do After Installing Ubuntu 18.10 - OMG! Ubuntu! https://www.omgubuntu.co.uk/2018/10/things-to-do-after-installing-ubuntu-18-10

Ubuntu 18.10 released, but is it worth downloading? - OMG! Ubuntu! https://www.omgubuntu.co.uk/2018/10/ubuntu-18-10-released-review

Upgrade from Cosmic (18.10) to Disco (19.04) Mate

UPDATE THE BIOS TO AVOID SUSPEND PROBLEMS!!

Add entries in the launcher: Add the desktop files in /usr/share/applications or ~/.local/share/applications/

Enable HUD: Mate tweaks -> Panel -> Enable HUD

Disable Caps Lock: Use xmodmap or one of the other commands

https://askubuntu.com/questions/574208/deactivate-caps-lock-in-14-04

=> The tweak tools do not work with Mate

Suspend: Screen doesn't lock on resume if I "Suspend" from the Menu "Suspend". Works from Fn+F1 keyboard shortcut

https://ubuntu-mate.community/t/how-to-lock-screen-on-suspend/16836

Only 1GB of swap by default with LVM and full disk encryption

Bug #1767299 “Ubuntu 18.04 Installer creates swap partition too small”

https://bugs.launchpad.net/ubuntu/+source/partman-auto/+bug/1767299

How To Add Swap Space on Ubuntu 18.04

https://linuxize.com/post/how-to-add-swap-space-on-ubuntu-18-04/

Change/increase swap file size

https://bogdancornianu.com/change-swap-size-in-ubuntu/

SwapFaq - Community Help Wiki

https://help.ubuntu.com/community/SwapFaq

Upgrade from Disco (19.04) to Eoan (19.10)

Remove locales you do not need:

sudo vi /var/lib/locales/supported.d/en
Remove all you do not need
sudo locale-gen
sudo vi /etc/default/locale
Update according to you needs
Reboot!

Wallpaper pictures: Add them in a folder in /usr/share/backgrounds

Upgrade from Eoan (19.10) to Focal (20.04)

It's Here: Ubuntu 20.04 is Now Available to Download! - OMG! Ubuntu! https://www.omgubuntu.co.uk/2020/04/download-ubuntu-20-04

TLS 1.0 support

Out of the box, 20.04 does not allow TLS lower than v1.2 for the clients. Here is how to re-enable it all the way down to 1.0.

Upgrade from Focal (20.04) to Groovy (20.10)

Ubuntu 20.10 Released, Now Available to Download - OMG! Ubuntu!

https://www.omgubuntu.co.uk/2020/10/download-ubuntu-20-10

Ubuntu 20.10 Flavours Released, This is What's (Mostly) New - OMG! Ubuntu! https://www.omgubuntu.co.uk/2020/10/ubuntu-20-10-flavours-released

Thunderbird is now at version 78.

Gcontactsync is not working anymore :(

Possible replacements/workarounds:

CardBook :: Add-ons for Thunderbird https://addons.thunderbird.net/en-US/thunderbird/addon/cardbook/

TbSync :: Add-ons for Thunderbird https://addons.thunderbird.net/en-us/thunderbird/addon/tbsync/

More info, GContactSync and Thunderbird 78 : Thunderbird https://www.reddit.com/r/Thunderbird/comments/jrdpwt/gcontactsync_and_thunderbird_78/

Palemoon

If problems with Steven Pusser Ubuntu repo keys, delete the key and fetch it again (example commands):

$ sudo apt-key list

$ sudo apt-key del "F961 1EC6 ADCF DD30 3362 217A 0FAD 31CA 8719 FCE4"

$ curl -fsSL https://download.opensuse.org/repositories/home:stevenpusser/xUbuntu_20.10/Release.key | gpg --dearmor | sudo tee /etc/apt/trusted.gpg.d/home_stevenpusser.gpg > /dev/null

Upgrade from Groovy (20.10) to Hirsute (21.04)

Top 10 Features of Ubuntu 21.04 Hirsute Hippo: https://www.debugpoint.com/2021/04/ubuntu-21-04-top-10-features/

Ubuntu 21.04 Released, Available to Download - OMG! Ubuntu!

https://www.omgubuntu.co.uk/2021/04/its-here-ubuntu-21-04-is-now-available-to-download

Ubuntu 21.04 Flavours Released, This is What's New - OMG! Ubuntu! https://www.omgubuntu.co.uk/2021/04/ubuntu-21-04-flavours-released

Don't Like Firefox 89's New Look? Try These Tweaks - OMG! Ubuntu!

https://www.omgubuntu.co.uk/2021/06/dont-like-firefoxs-new-look-try-one-of-these-tweaks

Upgrade from Hirsute (21.04) to Impish (21.10)

How to Create a Bootable Windows 10 USB on Ubuntu - OMG! Ubuntu! https://www.omgubuntu.co.uk/2017/06/create-bootable-windows-10-usb-ubuntu

Geany: Fix for underscores not showing

The line_height setting can be found in "Tools" > "Configuration Files" > "filetypes.common"

The only uncommented lines in my filetypes.common are now:

[styling]

line_height=0;2;

Alt shortcut key for Firefox menus in v111

In about:config, set ui.key.menuAccessKey to 25 and ui.key.menuAccessKeyFocuses to true

More info at: https://support.mozilla.org/en-US/questions/1354763

Upgrade from Hirsute (22.10) to Impish (23.04)

Ubuntu 23.04 Flavors: What's New? - OMG! Ubuntu https://www.omgubuntu.co.uk/2023/04/ubuntu-23-04-flavors-released

10 Things To Do After Installing Ubuntu 23.04 - OMG! Ubuntu https://www.omgubuntu.co.uk/2023/04/things-to-do-after-installing-ubuntu-23-04

Upgrade from Impish (23.04) to Mantic (23.10)

NA.

Upgrade from Mantic (23.10) to Noble (24.04)

Impossible to boot with the new kernel (6.8) from 24.04. It does not see the encrypted LUKS partition where the OS is.

Works fine from the old kernel (6.5) from 23.10.

Solution: Add the missing crypto packages that have been removed during the upgrade by mistake by the installed, as explained here: https://askubuntu.com/a/1487481

Basically this:

sudo apt install cryptsetup-initramfs

sudo update-initramfs -u -k <your-kernel-version>