Kontron KTAM3874-pITX - Manual (Page 286)

KTD-S0057-I Page 282 Appendix A: Linux® on microSDTM Card
KTAM3874/pITX Software Guide
ATTENTION
In the first release of Ubuntu TM 14.04 the Archive Manager ignores
the permissions, for example with 'sudo file-roller'. You have the
same effect if you use the 'tar' command without 'sudo'.
DO NOT USE THE ARCHIVE MANAGER!
An alternative would be the console command 'tar' within the Ter-
minal application.
The figure shows one way to extract the tarball (do not forget the 'sudo' statement).
Now the microSD
TM card is ready for use.