Build error when executing build-all.sh

[ihmcjacky]

Sorry if I ask silly question, I experience invalid magic when executing the build script

 Building /armhf-ubuntu:14.04
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   352  100   352    0     0    345      0  0:00:01  0:00:01 --:--:--   345
gunzip: invalid magic

Appreciate for any help, thanks!

[3th1nk]

ARCHIVE_NAME & BASE_IMAGE_URL has changed.
Ubuntu-base is a minimal rootfs and formerly named as Ubuntu-core.

update build.sh

ARCHIVE_NAME=ubuntu-base-$VERSION-core-armhf.tar
BASE_IMAGE_URL=http://cdimage.ubuntu.com/ubuntu-base/releases/$VERSION/release/${ARCHIVE_NAME}.gz

[djmaze]

Can anyone create a pull request for this change? I currently do not have much time for this.