Index of /data_reduc/AnaWork2017/VirtualBox
Hall A & C Analysis Workshop June 26-27, 2017
Virtual Machine Image
IMPORTANT: If you are coming to the workshop in person,
there is NO NEED to download this large image. We will distribute
an exact copy of it on USB drives at the beginning of the workshop.
This download is provided specifically for remote participants.
1) Ensure that you have VirtualBox running on your system.
See https://www.virtualbox.org for details.
Please install VirtualBox 5.1 or higher. Version 4.x will
definitely not work, and 5.0 is untested. On Linux, be
careful to check the version that your distribution repository
provides. Those versions are often old. In that case, do not
install from the repository, but download a matching package from
the VirtualBox web site instead. Be sure to get the 64-bit version
You'll need a 64-bit computer with at least 4 GB of memory.
Minimum OS requirements are Windows 7 or Mac OSX 10.9.
Requirements for Linux vary, but Fedora 22+, Ubuntu 14.04+ and RHEL7
should definitely work.
2) Download the archive file CentOS_7_VM.tar.xz (6.6 GB)
as well as the .sha1 checksum file. (Get the .asc signature file
too if you are paranoid. Exercise: verify the signature ;)
3) Verify the integrity of the archive
sha1sum -c CentOS_7_VM.tar.xz.sha1
This should report "OK"
4) Unpack the archive in a convenient location, such as the VirtualBox
default directory. You'll need at least 20 GB of space, better 30 GB.
On Linux, just type
tar xvf CentOS_7_VM.tar.xz
On Mac, you might need to install "xz" from Homebrew or otherwise
before using the tar command above.
On Windows, you can use 7-zip or WinRAR (free trial), for example.
5) (Double-)Click on the .vbox file in your file manager, or add
this machine to VirtualBox via the GUI (Machine->Add...)
6) If your computer has more than 4 GB of RAM, you might want to
increase the RAM available to the guest OS. In the VirtualBox
GUI, click on Settings->System. Move the slider next to "Base Memory"
to the desired amount. You don't need to go beyond 4 GB.
1) Click the green "Start" button in the GUI. The guest OS should start up.
2) You'll be greeted with a login screen for "Workshop Participant".
The password was sent in earlier emails. The account name is "me".
You can sudo from this account if necessary, for example to install
- If you get a message about "VT-x disabled" or similar, you need to enable
the "Virtualization Extensions" in your computer's BIOS. This is
harmless, but changing BIOS settings can be risky unless you know
what you are doing. The only change you should make is to enable
"VT-x" and "VT-d" (if available). These setting might have various
other, similar names, depending on your computer's BIOS.
- On Linux, odd errors about "kernel modules" usually mean that your
VirtualBox installation is damaged or incorrect. Try cleaning everything
out, and reinstall.
Please contact me with any questions.