Ubuntu, Kernel 4.14+, VMWare Workstation 14

I was unable to compile the ubuntu kernel patches for VMWare Workstation 14.0 for a couple of reasons on Ubuntu 16.04 with an updated kernel v4.14:

 

1. Launching VMWare Workstation resulted in a GUI window complaining no GCC-7.2 was available, solved by the following commands (thanks to https://askubuntu.com/questions/859256/how-to-install-gcc-7-or-clang-4-0) :

sudo add-apt-repository ppa:jonathonf/gcc-7.1
sudo apt-get update
sudo apt-get install gcc-7 g++-7
 

2. The next failure was with further kernel compiling modules with the vmmonitor service failing. This needed a patch on the install scripts to support the latest kernel, resolved by the following commands (thanks to https://github.com/mkubecek/vmware-host-modules/commit/770c7ffe611520ac96490d235399554c64e87d9f for the patch and https://superuser.com/questions/1255099/vmware-workstation-not-enough-physical-memory-since-last-update/1255963 for guidance on applying it):


~$ sudo cd /tmp
~$  cp /usr/lib/vmware/modules/source/vmmon.tar .
~$  tar xf vmmon.tar
~$  rm vmmon.tar
~$  wget https://raw.gi 
thubusercontent.com/mkubecek/vmware-host-modules/fadedd9c8a4dd23f74da2b448572df95666dfe12/vmmon-only/linux/hostif.c
~$  mv -f hostif.c vmmon-only/linux/hostif.c
~$  tar cf vmmon.tar vmmon-only
~$  rm -fr vmmon-only
~$  mv -f vmmon.tar /usr/lib/vmware/modules/source/vmmon.tar
~$  vmware-modconfig --console --install-all

Ubuntu, LVM, Partitions

Ubuntu disk partition extension under LVM:

1/ extend the LVM volume (cheated with gparted but parted would work fine, this is the container partition for the “Volume Group”.

 

2/ Next launch LVM and use “lvdisplay” to print the current output, mine was a container group with a single logical volume named “root”

 

3/ Now I know the location and name of the LV I can issue the following command to expand it into the available free space created in step 1:

lvextend -l +100%FREE /dev/Container1/root

 

4/ Finally exit lvm and expand the file system to fill the LV:

sudo resize2fs /dev/Container1/root

Ubuntu

Issuing “apt-get update” or “apt-get upgrade” commands resulted in the following error:

E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable)
E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it?

I couldn’t locate any running processes which would be locking these files so went ahead and removed the lock files via:

sudo rm /var/lib/apt/lists/lock
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock

And then repeated the commands successfully.

 

Ubuntu & Virtualbox

Ubuntu 16.04 (kernel 4.14), Virtualbox

I was trying to install Oracle VirtualBox either from their repo or from the Ubuntu repo but both failed to compile the Kernel Module.

I tried various guides before actually reading the error log whereupon I found the “libelf-dev” package was required (at least for installing virtualbox-5.2 from Oracle directly!).

Linux Learnings

dave@mule:~$ arr=($(ipcs -p | awk -F ' *' '$3 ~ /^[0-9]+$/ {print $3}' ))
dave@mule:~$ for i in "${arr[@]}"; do :; ps aux | grep -v grep | grep -e $i; done

This code firstly creates an array of the 3rd column’s numerical values from the [ ipcs-p ] command and then in the second command it iterates over the array and filters out the [ps aux] results using [grep] to display only entries matching the item in the array.

It’s not terribly efficient but I’m just starting out here… 🙂

 

 

courses:edx.org

Handy Bash Shortcuts

Keyboard Shortcut Task
CTRL-L Clears the screen
CTRL-D Exits the current shell
CTRL-Z Puts the current process into suspended background
CTRL-C Kills the current process
CTRL-H Works the same as backspace
CTRL-A Goes to the beginning of the line
CTRL-W Deletes the word before the cursor
CTRL-U Deletes from beginning of line to cursor position
CTRL-E Goes to the end of the line
Tab Auto-completes files, directories, and binaries