Hi again, I was checking my internet connection today and got strange results.
First I logged in remotely to my university to download the xubuntos-2.1-vm.tar.gz to the remote machine. It seems like wget had to resume the download once for the last byte of the file couldn't be transmitted at the first attempt (Connection closed). This is the terminal output of downloading: ################# xxxx...@ssh:/tmp> wget http://sing.stanford.edu/tinyos/dists/xubuntos-2.1-vm.tar.gz --12:58:03-- http://sing.stanford.edu/tinyos/dists/xubuntos-2.1-vm.tar.gz => `xubuntos-2.1-vm.tar.gz' Resolving wwwcache.rz.tu-harburg.de... 134.28.202.150 Connecting to wwwcache.rz.tu-harburg.de|134.28.202.150|:81... connected. Proxy request sent, awaiting response... 200 OK Length: 879,792,365 (839M) [application/x-gzip] 99% [= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ===================================================================> ] 879,792,364 474.19K/s ETA 00:00 13:27:08 (492.49 KB/s) - Connection closed at byte 879792364. Retrying. --13:27:09-- http://sing.stanford.edu/tinyos/dists/xubuntos-2.1-vm.tar.gz (try: 2) => `xubuntos-2.1-vm.tar.gz' Connecting to wwwcache.rz.tu-harburg.de|134.28.202.150|:81... connected. Proxy request sent, awaiting response... 206 Partial Content Length: 879,792,365 (839M), 1 remaining [application/x-gzip] 100%[++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +>] 879,792,365 --.--K/s 13:27:09 (195.31 KB/s) - `xubuntos-2.1-vm.tar.gz' saved [879792365/879792365] ################## Unpacking it there results in an error too as it did on my machine but a little different. Unpacking at home on OS X yields: ################## MacBook:Downloads david$ tar xvzf xubuntos-2.1-vm.tar.gz --directory / Users/david/Downloads/xubuntosVM Xubuntos 2.1/ Xubuntos 2.1/nvram Xubuntos 2.1/Xubuntos 2.0-s001.vmdk gzip: stdin: invalid compressed data--format violated tar: Child returned status 1 tar: Error exit delayed from previous errors ################## Unpacking on remote university machine (HP Unix or RedHat I don't remember) yields: ################## xxxx...@ssh:/tmp> tar -xvzf xubuntos-2.1-vm.tar.gz --directory /tmp/ xubuntos-2.1-vm Xubuntos 2.1/ Xubuntos 2.1/nvram Xubuntos 2.1/Xubuntos 2.0-s001.vmdk Xubuntos 2.1/Xubuntos 2.0-s002.vmdk Xubuntos 2.1/Xubuntos 2.0-s003.vmdk Xubuntos 2.1/Xubuntos 2.0-s004.vmdk Xubuntos 2.1/Xubuntos 2.0-s005.vmdk tar: Skipping to next header gzip: stdin: invalid compressed data--crc error gzip: stdin: invalid compressed data--length error tar: Child returned status 1 tar: Error exit delayed from previous errors ################## Since I downloaded via Safari at home I gave wget a try at home too. Unpacking the downloaded file then gives this error which is quite similar to the one on the remote university machine: ################## MacBook:Desktop david$ wget http://sing.stanford.edu/tinyos/dists/xubuntos-2.1-vm.tar.gz --2009-06-19 13:41:22-- http://sing.stanford.edu/tinyos/dists/xubuntos-2.1-vm.tar.gz Auflösen des Hostnamen »sing.stanford.edu«.... 171.67.76.65 Verbindungsaufbau zu sing.stanford.edu|171.67.76.65|:80... verbunden. HTTP Anforderung gesendet, warte auf Antwort... 200 OK Länge: 879792365 (839M) [application/x-gzip] In »xubuntos-2.1-vm.tar.gz« speichern. 100% [= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = ====================================================================>] 879.792.365 213K/s in 45m 40s 2009-06-19 14:27:03 (314 KB/s) - »xubuntos-2.1-vm.tar.gz« gespeichert [879792365/879792365] MacBook:Desktop david$ tar -xvzf xubuntos-2.1-vm.tar.gz --directory / Users/david/Desktop/xubuntosVM Xubuntos 2.1/ Xubuntos 2.1/nvram Xubuntos 2.1/Xubuntos 2.0-s001.vmdk tar: Skipping to next header gzip: stdin: invalid compressed data--format violated tar: Child returned status 1 tar: Error exit delayed from previous errors ################### Second I tried the internet connection at my parents' home and at a local elementary school. The tinyos.net homepage looks different there. Mainly it's all the same there (Layout, logos etc.) but you just can't navigate to the sites containing installation instructions and the *.tar.gz files. The links are made so that you are linked in a loop. From the main site you can go to the "get started" page, when following the links there to the specific installation instructions you get back to the main page again. :-( If I had not seen that with my own eyes I wouldn't believe. I have no explanation for it. If it was about censorship I don't think pages in the same country would look different viewed from two different pcs. And why would anyone censor TinyOS? I want to tryout logging into the university network via vpn this evening and have a look at how the webpage looks from there. And maybe I will try a new install of ubuntu and tinyos to get to see those hashsum missmatch messages once more :-(. If anyone has any idea what to do or a clue about what's going on here please help me out. Thanks. David. _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
