Recipe update not working

[Idefix]

Hi,

I just installed calibre on my raspberry as I want to configure a cronjob to download my favorite news. On my Linux - MINT everything works as it should. But on my RaspberryPi the recipe update fails.

After that the download starts and (with a bunch of errors in between). The news is downloaded.

So internet connection works. Is it possible that rasbian linux is missing some settings or packages compared to MINT Linux?
Or what other reason is there for not getting access to the recipies?
What is the url of the recipies? So I could try to download it manually an see if there is also an error...

cheers
idefix

[kovidgoyal]

UNless you tell us what the error is it's impossible to say. Could be anything from a missing https CA certificates, outdated version of calibre (some updated recipes need newer calibre versions), network troubles...

[Idefix]

When I type:
ebook-convert "New York Times.recipe" NY.epub

I get:

InputFormatPlugin: Recipe Input running
Trying to get latest version of recipe: nytimes_sub
Failed to download recipe, using builtin version

And after that it starts downloading the news using the builtin version of the recipe and I do get my epub. But what if the recipe changes.. I will not get any update.

[Idefix]

I'm still stuck at this point. What is the URL / Server to which I need to able to connect to? To get my recipes updated? If I would know an adress I could just try to ping it. Or use wget and get more information why the download fails.

Or does anyone has an idea why my raspberry fails to download the recipes?

[kovidgoyal]

Pass -vv to the command to get verbose output

[Idefix]

Thank you for the tip kovid!

verbose output gives me:

Traceback (most recent call last):
File "/usr/lib/calibre/calibre/web/feeds/recipes/collection.py", line 222, in get_builtin_recipe_by_title
return download_builtin_recipe(urn)
File "/usr/lib/calibre/calibre/web/feeds/recipes/collection.py", line 208, in download_builtin_recipe
return get_https_resource_securely('https://status.calibre-ebook.com/recipe/'+urn)
File "/usr/lib/calibre/calibre/utils/https.py", line 183, in get_https_resource_securely
c = HTTPSConnection(ssl_version, hostname, port, cert_file=cacerts, timeout=timeout)
File "/usr/lib/calibre/calibre/utils/https.py", line 137, in __init__
httplib.HTTPSConnection.__init__(self, *args, **kwargs)
File "/usr/lib/python2.7/httplib.py", line 1236, in __init__
context.load_cert_chain(cert_file, key_file)
SSLError: [SSL] PEM lib (_ssl.c:2525)

seems a certificate problem?

As I got the url in the verbose output I tried:
wget https://status.calibre-ebook.com/rec...mes_sub.recipe

and it did not work. It says that it doesn't trust the certificate. But the wget command doesn't work on my MINT-Linux either where the update of the recipes works during ebook-convert.

Any hint for whats going on in Rasbian?

[kovidgoyal]

The version of calibre is too old. Nowadays recipes are distributed using a pinned SHA-256 private certificate -- you need to run a modern version of calibre for it to work.

[Idefix]

Thanks for the hint. I did not expect the repositories been that far behind.

Unfortunateley installation of the binarys failed, when I follow your instructions on the download page using:

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.py | sudo python -c "import sys; main=lambda:sys.stderr.write('Download failed\n'); exec(sys.stdin.read()); main()"

I get:

Downloading calibre-2.75.0-i686.txz
100% [================================================== ========================================]
Downloaded 61583400 bytes
Checking downloaded file integrity...
Extracting files to /opt/calibre ...
Extracting application files...
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "<string>", line 673, in main
File "<string>", line 666, in run_installer
File "/usr/lib/python2.7/subprocess.py", line 522, in call
return Popen(*popenargs, **kwargs).wait()
File "/usr/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/usr/lib/python2.7/subprocess.py", line 1335, in _execute_child
raise child_exception

Could you please help once again?

[Idefix]

Oh... I have an Idea... RasberryPi is running an ARM processor... this might be a problem I guess...

[kovidgoyal]

Yeah I dont maintain ARM builds of calibre. You have to build it yourself or find someone who has built an updated version.

[Idefix]

Is there a way to find out who did the last compilation for ARM (RaspberryPi) so I could ask the one to compile a newer version.
As I'm far to much of a linux noop and you said calibre is pretty complex I doubt that I will make a working compilation by my own

I would love to use my Raspberry to download the news erveryday. As it is running anyway and thus would be perfect for the job!

[Idefix]

Hi, back again,

worked on that a bit by my own.

Managed to get calibre 2.7 installed out of the testing repositories:

https://www.raspberrypi.org/forums/v...8&t=169037&e=0

EDIT
And updates are now working.