Certificate error When trying to update

[dunhill]

Certificate error When trying to update, this error appears. sudo v && wget --no-check-certificate -nv -0- https://download.calibre-ebook.com/linux-installer.sh | sudo sh

Your/dev/stdin

NOTICE: The certificate for «download.calibre-ebook.com>> is not trusted.

NOTICE: The certificate for «download.calibre-ebook.com>> has no known issuer.

The certificate owner does not match the computer name «download.calibre-ebook.com>>>

http://89.208.107.49:8081/:

2024-12-09 16:44:12 ERROR 404 Not Found..

[PeterT]

It looks as if the certificate for that site was issued on December 8th....

Sent from my Pixel 7a using Tapatalk

[kovidgoyal]

The certificate is fine. It is an auto renewed LetsEncrypt certificate

wget -nv -O/dev/null https://download.calibre-ebook.com/linux-installer.sh                                                     *
2024-12-10 05:10:08 URL:https://download.calibre-ebook.com/linux-installer.sh [35050/35050] -> "/dev/null" [1]

And ssl certificate test report
https://www.ssllabs.com/ssltest/anal...ibre-ebook.com

Probably your system is missing some CA certificates.

[swordthief]

[Running calibre portable 7.23]

I just received a very similar certificate error on my install when trying to launch it today. Windows certificate error complaining about an unknown publisher. Tried looking more into it, and it looks like it was saying the certificate was expired.

I tried looking into the root CA but couldn't gather much at the time.

This error is after I already updated to 7.23 and did not have problems until today. I decided to try running the 7.23 installer again, and it opened calibre without an issue after that.

Not sure what is going on or why it was complaining about an expired certificate but wanted to share this in case others might be having this problem too.

[swordthief]

Originally Posted by swordthief

[Running calibre portable 7.23]

I just received a very similar certificate error on my install when trying to launch it today. Windows certificate error complaining about an unknown publisher. Tried looking more into it, and it looks like it was saying the certificate was expired.

I tried looking into the root CA but couldn't gather much at the time.

This error is after I already updated to 7.23 and did not have problems until today. I decided to try running the 7.23 installer again, and it opened calibre without an issue after that.

Not sure what is going on or why it was complaining about an expired certificate but wanted to share this in case others might be having this problem too.

I encountered this certificate error again today. I have attached a screenshot.

I didn't start having this problem until 7.23, and I don't want to have to constantly reapply the update to resolve the error. Is there something I'm missing or something I can do to fix it?

[kovidgoyal]

The certificate used to sign calibre on windows expires Oct 2025, so it cant be an expired certificate. And windows shows no issues for me with calibre. I just tried downloading and installing it on my win11 machine. No errors or warnings. Right clicking on calibre.exe in windows explorer and choosing properties->digital signatures shows the signature is OK.

I'm not a windows user so I cant really help but off hand I'd suggest check your system certificates, probably something there is expired/corrupted or similar.

[swordthief]

Originally Posted by kovidgoyal

The certificate used to sign calibre on windows expires Oct 2025, so it cant be an expired certificate. And windows shows no issues for me with calibre. I just tried downloading and installing it on my win11 machine. No errors or warnings. Right clicking on calibre.exe in windows explorer and choosing properties->digital signatures shows the signature is OK.

I'm not a windows user so I cant really help but off hand I'd suggest check your system certificates, probably something there is expired/corrupted or similar.

I also looked into the certificate, and I do see what you mean about it saying the signature is OK.

However, I think I figured something out, and maybe this might be why I'm having issues, but I don't know much about this, so maybe I'm mistaken.

Now, I'm not sure if it makes a difference, but I'm running the portable build of calibre on an external hard drive. I'm not using the windows installer.

I've run this on two separate win11 machines which previously had no issues, but for some reason, updating to 7.23 eventually causes certificate errors.

As stated in my previous post, when I reinstall the 7.23 update, I am able to launch without issue, but then I didn't use it for a couple days or so, came back, and I got another certificate error again.

However, here is what I figured out. When I'm trying to launch calibre, I'm using the "calibre-portable.exe" launcher in the "Calibre Portable" directory (I've always launched calibre via this .exe). I noticed that "calibre-portable.exe" does not show a certificate on it. However, "calibre.exe" under "Calibre Portable/Calibre" is where the certificate shows up. Is this how it typically should be, or am I missing a certificate?

[kovidgoyal]

all exe's and dlls are supposed to be signed in the calibre app bundle itself. I cant recall offhand whether the portable launchers are signed or not, possibly not. I suppose I can sign them as well for the next release. The actual portable installer is already signed though.

https://github.com/kovidgoyal/calibr...37adb21faa1ead