[gbm]

Originally Posted by Retepvandijk

Hello,
I tried to upgrade my Calibre (0.8.38) because I want to install the Kobo plugins.
But I don't understand the error messages I get in the terminal window. I use the commandline from the downloadsite.
Is there an easy solution for this ?

thank you,
Peter

peter@Laptop:~$ sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin
[sudo] password for peter:
Using python executable: /usr/bin/python3
2018-06-18 12:41:10 URL:https://download.calibre-ebook.com/linux-installer.sh [30829/30829] -> "-" [1]
Installing to /opt/calibre
Downloading tarball signature securely...
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "<string>", line 775, in script_launch
File "<string>", line 732, in main
File "<string>", line 678, in run_installer
File "<string>", line 648, in download_and_extract
File "<string>", line 640, in get_tarball_info
File "<string>", line 597, in get_https_resource_securely
File "<string>", line 505, in __init__
File "/usr/lib/python3.2/http/client.py", line 1133, in __init__
context.load_cert_chain(cert_file, key_file)
ssl.SSLError: [Errno 336265225] _ssl.c:1701: error:140B0009:SSL routines:SSL_CTX_use_PrivateKey_file:PEM lib

From the calibre Linux download site

If you get an error about an untrusted certificate, that means your computer does not have any root certificates installed and so cannot download the installer securely. If you still want to proceed, pass the --no-check-certificate option to wget, like this:

sudo -v && wget --no-check-certificate -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

You are using an OS that is past "end of life" and is receiving no more security updates. I recommend you update to a newer OS. The latest calibre requires GLIBC 2.17 or higher and libstdc++.so.6.0.17 (from gcc 4.7.0) or higher to run. To check your GLIBC version type the following code into a terminal.

ldd --version

bernie