Please, try to check trijicon.com firewall: which services are available, which are not.
Please, read the following: https://serverfault.com/questions/309052/check-if-port-is-open-or-closed-on-a-linux-server And also the following: https://en.wikipedia.org/wiki/List_of_TCP_and_UDP_port_numbers Please, explore and learn about CLI nmap (very powerful) command. Hope this helps, Zoran _______ On Tue, Jul 2, 2019 at 2:53 PM Chad Gong <cg...@trijicon.com> wrote: > > Hi, > > > > I am new to Yocto project and try to build my first yocto project by > following instructions on > https://www.yoctoproject.org/docs/current/brief-yoctoprojectqs/brief-yoctoprojectqs.html. > I checked out branch yocto-2.5.3, and tried to build targets, such as > core-image-minimal, meta-toolchain, but always get some fetch errors or > checksum errors, such as: > > > > ERROR: libmpc-native-1.1.0-r0 do_fetch: Checksum failure fetching > https://ftp.gnu.org/gnu/mpc/mpc-1.1.0.tar.gz > > WARNING: quilt-native-0.65-r0 do_fetch: Failed to fetch URL > http://download.savannah.gnu.org/releases/quilt/quilt-0.65.tar.gz, attempting > MIRRORS if available > > WARNING: m4-native-1.4.18-r0 do_fetch: Failed to fetch URL > http://ftp.gnu.org/gnu/m4/m4-1.4.18.tar.gz, attempting MIRRORS if available > > > > I am running Ubuntu 18.04 virtual box on Windows 7. > > > > Chad Gong > > Electrical Engineer > > > > Trijicon, Inc. > > | P.O. Box 930059 > > Wixom, Michigan 48393 US > > cg...@trijicon.com | > > > > ________________________________ > This electronic message contains information that may be confidential, > privileged, proprietary, or subject to the export control laws of the United > States, including the Arms Export Control Act (22 U.S.C. 2571 et seq.), the > International Traffic in Arms Regulations (22 C.F.R. Part 120 et seq.), > and/or the Export Administration Regulations (15 C.F.R. Part 730 et seq.). > This information is intended for the use of the addressee only, and if you > are not the intended recipient, any disclosure, copying, distribution, > printing, or any other use of, the contents of this message is prohibited. > Any transfer, retransfer, or disclosure of this data to a Foreign Person > without United States Government authorization is also prohibited. If you > have received this message in error, please notify the sender and destroy the > original message. > > -- > _______________________________________________ > yocto mailing list > yocto@yoctoproject.org > https://lists.yoctoproject.org/listinfo/yocto -- _______________________________________________ yocto mailing list yocto@yoctoproject.org https://lists.yoctoproject.org/listinfo/yocto