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enuddleyarbl · 08-08-2026, 07:45 AM

I can't imagine this would be the issue, but are you really entering that command without elevation (sudo)? According to the Calibre website:

https://calibre-ebook.com/download_linux

the command for a "no root certificates" install is:

Code:

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

If your system really has no root certificates installed, I can't imagine the command working at all without the sudo.

08-08-2026, 07:45 AM	#2
enuddleyarbl Guru Posts: 856 Karma: 2111023 Join Date: Sep 2013 Device: Kobo Sage	I can't imagine this would be the issue, but are you really entering that command without elevation (sudo)? According to the Calibre website: https://calibre-ebook.com/download_linux the command for a "no root certificates" install is: Code: sudo -v && wget --no-check-certificate -nv -O- https://download.calibre-ebook.com/linux-installer.sh \| sudo sh /dev/stdin If your system really has no root certificates installed, I can't imagine the command working at all without the sudo.