[roger64]

Hi

I just tried to download 2.8 on Linux Mint 17 Qiana (64 bits) and failed several times. But it worked using the alternative solution given in the help file. (without certificate).

 sudo -v && wget -nv -O- https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main()"
[sudo] password for roger: 
2014-11-02 10:31:31 URL:https://raw.githubusercontent.com/kovidgoyal/calibre/master/setup/linux-installer.py [25619/25619] -> "-" [1]
Installing to /opt/calibre
Downloading tarball signature securely...
Will download and install calibre-2.8.0-x86_64.txz 
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "<string>", line 648, in main
  File "<string>", line 621, in download_and_extract
  File "<string>", line 323, in download_tarball
  File "<string>", line 268, in do_download
  File "/usr/lib/python2.7/urllib.py", line 87, in urlopen
    return opener.open(url)
  File "/usr/lib/python2.7/urllib.py", line 208, in open
    return getattr(self, name)(url)
  File "/usr/lib/python2.7/urllib.py", line 359, in open_http
    return self.http_error(url, fp, errcode, errmsg, headers)
  File "/usr/lib/python2.7/urllib.py", line 372, in http_error
    result = method(url, fp, errcode, errmsg, headers)
  File "/usr/lib/python2.7/urllib.py", line 635, in http_error_302
    data)
  File "/usr/lib/python2.7/urllib.py", line 661, in redirect_internal
    return self.open(newurl)
  File "/usr/lib/python2.7/urllib.py", line 208, in open
    return getattr(self, name)(url)
  File "/usr/lib/python2.7/urllib.py", line 345, in open_http
    h.endheaders(data)
  File "/usr/lib/python2.7/httplib.py", line 969, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python2.7/httplib.py", line 829, in _send_output
    self.send(msg)
  File "/usr/lib/python2.7/httplib.py", line 791, in send
    self.connect()
  File "/usr/lib/python2.7/httplib.py", line 772, in connect
    self.timeout, self.source_address)
  File "/usr/lib/python2.7/socket.py", line 553, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
IOError: [Errno socket error] [Errno -2] Name or service not known
roger@roger-mint ~ $