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other:vb:update [2015/03/17 13:41]
jypeter [Updating Linux] Had tu use %%--%% to display 2 dashes instead of a long dash
other:vb:update [2016/09/15 08:56]
jypeter [Updating Linux] Added packagekit clean command
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 <note important>​Important reminder: <note important>​Important reminder:
 +  * //VB// : VirtualBox
 +  * //VM// : a Virtual Machine running inside VB
   * VB //host//: the machine and operating system where the VB program is running.   * VB //host//: the machine and operating system where the VB program is running.
-  * VB //guest//: the operating system running **inside** VB.+  * VB //guest//: the operating system running **inside** VB (aka //VM//).
 </​note>​ </​note>​
 +
 +===== When should you update the VB? =====
 +
 +<note warning>​If you are not used to installing and debugging VB, you may want to play it safe and **not update VB**. Many things are fixed in a new version, but things can also break (e.g. network access, graphics, ...) and you may have to use the VB forum to get everything working again...
 +
 +It is safe to update the Linux running inside VB</​note>​
 +
 +VB will periodically check if a new version is available. You can also check that manually by doing: //File --> Check for updates...//​
 +
  
 ===== Updating the VirtualBox program on the host ===== ===== Updating the VirtualBox program on the host =====
  
-  * Download ​the latest version of VB, and the matching VB additions file from the [[https://​www.virtualbox.org/​|VirtualBox web site]] +  * Click on the link that VB will display in a pop-up window when there is a new version, or download ​the latest version of VB from the [[https://​www.virtualbox.org/​|VirtualBox web site]] 
-  * Execute the VirtualBox-NN1234-Win.exe installer+    * If the host where you are updating VB has no network connection, you probably also want to download the matching //VB Extension Pack// 
 +    * You can also download an updated version of the //User Manual// from the same page 
 +  * Make sure that: 
 +    * Your VB guest is in the //Powered Off// state (i.e. you have exited the guest with a proper Linux shut down last time you used the guest) 
 +    * VB is not running (e.g. you don't have an open //Oracle VM VirtualBox Manager// window) 
 +  * Execute the VirtualBox-vvvv-NNNN-Win.exe installer ​**as an Administrator** (e.g. right-click on the installer and select //run as Administrator//​). 
 +    * Accept all the default settings 
 +    * Make sure you don't have another program using the network when the installer warns you about having to temporarily stop the network 
 +    * Choose to start VB at the end of the installation,​ and accept to download and install the updated //Oracle VM VirtualBox Extension Pack// when VB tells you that a new pack is available 
 +  * Reboot the computer if VB asks for it (otherwise, you may get weird error messages when trying to restart the guest) 
 +  * Start the VM, optionally [[#​updating_linux|update the linux guest]] and no not forget to [[#​updating_the_linux_guest_additions|update the guest additions]] 
 + 
 +==== Note about the manual update of the extension pack ==== 
 + 
 +It is also possible to manually install the updated extension pack, but there is a risk of losing the settings 
   * Double click on the Oracle_VM_VirtualBox_Extension_Pack-NN1234.vbox-extpack extension pack and follow the instructions   * Double click on the Oracle_VM_VirtualBox_Extension_Pack-NN1234.vbox-extpack extension pack and follow the instructions
   * **WARNING!** VB seems to go back to its default settings during the update (since version 4.3.22?), resulting in //an apparent disappearance of the VB after the update//!   * **WARNING!** VB seems to go back to its default settings during the update (since version 4.3.22?), resulting in //an apparent disappearance of the VB after the update//!
     * **1)** Restore the preferences by hand, as specified in [[other:​vb:​install#​installing_vb_on_a_windows_host]]     * **1)** Restore the preferences by hand, as specified in [[other:​vb:​install#​installing_vb_on_a_windows_host]]
-    * **2)** Go to the directory where the VM is installed (e.g. ''​E:​\VirtualBox\VirtualBox VMs\Fedora Core 20 CLIM_ESTIMR''​) and double click on the ''​XXXXX.vbox''​ setting file located in this directory +    * or  ​**2)** Go to the directory where the VM is installed (e.g. ''​E:​\VirtualBox\VirtualBox VMs\Fedora Core 20 CLIM_ESTIMR''​) and double click on the ''​XXXXX.vbox''​ setting file located in this directory 
-  * Do not forget to update ​the guest additions ​(see below)+ 
 +==== Cleaning up things ==== 
 + 
 +After updating VB, you can remove ​the downloaded extension packs from ''​C:​\Users\your_login\.VirtualBox'' ​(i.e. all the ''​Oracle_VM_VirtualBox_Extension_Pack-NNNN.vbox-extpack''​ files)
  
 ===== Updating the Linux guest system ===== ===== Updating the Linux guest system =====
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     * Outside LSCE: **yum %%--%%disablerepo lsce update**     * Outside LSCE: **yum %%--%%disablerepo lsce update**
  
-  * //Is there a cleanup step or a temporary directory to remove?//+Note: You will know you have updated the //Linux kernel//, if ''​yum update''​ displays something like the following:​ 
 +<​code>​Installing:​ 
 + ​kernel ​                            ​x86_64 3.19.8-100.fc20 ​            ​updates ​                34 M 
 + ​kernel-devel ​                      ​x86_64 3.19.8-100.fc20 ​            ​updates ​               9.3 M 
 + ​kernel-modules-extra ​              ​x86_64 3.19.8-100.fc20 ​            ​updates ​               2.1 M</​code>​
  
  
-==== Updating the guest additions ====+=== Cleaning up things === 
 + 
 +Check the space available on the disks with ''​df -h''​ 
 + 
 +It may be a good idea to clean the yum cache from time to time 
 + 
 +<​code>​ 
 +# Execute the following commands as root 
 + 
 +du -sh /​var/​cache/​yum 
 +yum clean all 
 +du -sh /​var/​cache/​yum 
 +yum update 
 +du -sh /​var/​cache/​yum 
 +</​code>​ 
 + 
 +Recent machines (Fedora Core 22 and later) may use ''​dnf''​ instead of //yum//, and PackageKit. 
 + 
 +  * You can clean the PackageKit cache with: ''​pkcon refresh force''​ 
 + 
 +It's also a good thing to clean the //journal// (note: limiting the journal size probably has to be done only once) 
 + 
 +<​code>#​ Execute the following commands as root 
 + 
 +du -sh /​var/​log/​journal 
 +journalctl --disk-usage 
 + 
 +# Edit the /​etc/​systemd/​journald.conf file and add the following option 
 +# SystemMaxUse=50M 
 +# Then use the following command to restart the service and remove old journal entries 
 + 
 +systemctl restart systemd-journald.service 
 +</​code>​ 
 + 
 + 
 +==== Updating the Linux guest additions ====
  
 The guest additions are extensions of the guest system that will allow a better integration of the guest and the host: The guest additions are extensions of the guest system that will allow a better integration of the guest and the host:
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   * //many other subtle things...//   * //many other subtle things...//
  
-You have to update the guest additions ​when you update ​the Linux guest or you update the VB program running on the host+You should ​update the guest additions
 +  * after updating ​the **Linux guest kernel** (no need to update the guest additions after non kernel updates) 
 +  * after updating the **main VirtualBox ​program** running on the host
  
-  ​* In the VB window (the one where the guest is running), select //​Devices->​Insert Guest Additions CD Image...//.+Guest additions updating steps: 
 +  * If you have just updated the Linux kernel (when doing a Linux update), make sure you reboot the Linux guest before you reinstall the guest additions, so that the new kernel is running when you install the guest additions! 
 +  ​* In the VB window (the one where the guest is running), select //​Devices->​Insert Guest Additions CD Image...//​. ​A //virtual// CD icon should appear on the desktop of the Linux guest
     * Click on //Force unmount// in the popup Window, if a previous virtual CD is still present     * Click on //Force unmount// in the popup Window, if a previous virtual CD is still present
 +    * Right-click on the CD icon and choose //Mount Volume//
     * Click on //Cancel// if you get a popup window displaying //This medium contains software intended to be automatically started. Would you like to run it?//     * Click on //Cancel// if you get a popup window displaying //This medium contains software intended to be automatically started. Would you like to run it?//
-  * Become root in a window: ​**sudo su -** +  * Become root in a window: ​''​sudo su -''​ 
-  * Check where the CD image has been installed: ​**df -h**\\ The CD should be available in ///​run/​media/​your_login/VBOXADDITIONS_NNNN// +  * Check where the CD image has been installed: ​''​df -h''​ 
-  * Go to the additions'​ directory: ​**cd /​run/​media/​your_login/​VBOXADDITIONS_NNNN** +    ​* The CD should be available in ''​/run/media/​your_login/​VBOXADDITIONS_vvvv_NNNN''​ 
-  * Run the installation script: ​**./​VBoxLinuxAdditions.run** +    * If the CD icon has appeared on the Linux desktop, but you don't see any subdirectory in ''​/run/media'',​ right-click on the CD icon and select ​//Mount volume// 
-  * Reboot: ​**shutdown -r now** +  * Go to the additions'​ directory: ​''​cd /​run/​media/​your_login/​VBOXADDITIONS_vvvv_NNNN''​ 
-  * Virtually eject the CD image by selecting in the VB window, //​Device->​CD/DVD Devices->Remove disk from virtual drive//+  * Run the installation script: ​''​./​VBoxLinuxAdditions.run''​ 
 +  * Reboot: ​''​shutdown -r now''​ 
 +  ​Log in 
 +  * Virtually eject the CD image by selecting in the VB window, //​Device->​Optical Drives->Remove disk from virtual drive//
     * Note: click in //Force unmount// in the popup Window, if necessary     * Note: click in //Force unmount// in the popup Window, if necessary
 +    * The //virtual// CD icon should disappear from the desktop of the Linux guest
  
   * **After rebooting**,​ if you get a smaller VB window and you get a notification telling you that the graphics are running in software rendering mode (and that was not already the case before updating), and when you open a terminal and move the window around, the window is moving more slowly than before, see the note below to check if the guest additions are running or not   * **After rebooting**,​ if you get a smaller VB window and you get a notification telling you that the graphics are running in software rendering mode (and that was not already the case before updating), and when you open a terminal and move the window around, the window is moving more slowly than before, see the note below to check if the guest additions are running or not
  
 Note: you can check the status or force the re-installation of the guest additions with Note: you can check the status or force the re-installation of the guest additions with
-  * Status (running or not): **/​etc/​init.d/​vboxadd status** +  * Status (running or not): ''​/​etc/​init.d/​vboxadd status''​ 
-  * Starting manually the //guest additions service//: ​**/​etc/​init.d/​vboxadd start**\\ Use the //setup// line below to reinstall the guest additions if you get an error message when trying the //start// command +  * Starting manually the //guest additions service//: ​''​/​etc/​init.d/​vboxadd start''​\\ Use the //setup// line below to reinstall the guest additions if you get an error message when trying the //start// command 
-  * Install: ​**/​etc/​init.d/​vboxadd setup**+  * Install: ​''​/​etc/​init.d/​vboxadd setup''​ 
 + 
 +==== The Linux guest and the host graphics card ==== 
  
-Note: if you want some details about how the graphics are handled by the current installation of you VB (i.e. **is your VM using the graphics card of the Windows host** or is it running is it use the sloooow software mode?), you can use the following commands+If you want some details about how the graphics are handled by the current installation of you VB (i.e. **is your VM using the graphics card of the Windows host** or is it running is it use the sloooow software mode?), you can use the following commands
  
-  * **glxgears**: if things work correctly, you will get a window with smoothly rotating gears (you can make the window fullscreen and check that it is still working) and the terminal will display some frames per second statistics+  * ''​modinfo vboxvideo''​ will give you some information about the video driver provided by VB. Theoretically,​ //​vboxvideo//​ should also appear when you type ''​lsmod''​ 
 +  ​''​glxgears''​: if things work correctly, you will get a window with smoothly rotating gears (you can make the window fullscreen and check that it is still working) and the terminal will display some frames per second statistics
     * You may get some warning and error messages, but you should be good if the gears are rotating smoothly     * You may get some warning and error messages, but you should be good if the gears are rotating smoothly
-  * You can run the //glxinfo// command and you should see a reference to your graphics card if the video is indeed using it\\ **glxinfo | \grep -i opengl**\\ OpenGL vendor string: Humper\\ OpenGL renderer string: Chromium \\ OpenGL version string: 2.1 Chromium 1.9\\ **NVIDIA card =>** OpenGL shading language version string: 4.40 **NVIDIA** via Cg compiler\\ **Intel HD Graphics xxxx card =>** OpenGL shading language version string: 4.00 - **Build 10.18.10.3993**\\ OpenGL extensions:​ +  * You can run the //glxinfo// command and you should see a reference to your graphics card if the video is indeed using it\\ ''​glxinfo | \grep -i opengl''​\\ OpenGL vendor string: Humper\\ OpenGL renderer string: Chromium \\ OpenGL version string: 2.1 Chromium 1.9\\ **NVIDIA card =>** OpenGL shading language version string: 4.40 **NVIDIA** via Cg compiler\\ **Intel HD Graphics xxxx card =>** OpenGL shading language version string: 4.00 - **Build 10.18.10.3993**\\ OpenGL extensions:​ 
-  * You can get some additional information (including the screen resolution) with the //​xdpyinfo//​\\ ​**xdpyinfo | less**+  * You can get some additional information (including the screen resolution) with the //​xdpyinfo//​\\ ​''​xdpyinfo | less''​
  
  
-==== In case of weird graphics problems... ​====+=== In case of weird graphics problems... ===
  
 There seems to be some problems linked to some combination of: There seems to be some problems linked to some combination of:
other/vb/update.txt · Last modified: 2016/09/19 15:19 by jypeter