![]() ![]() If you wish to revert to an earlier calibre release or download a calibre upgrade manually, download the tarball of that release from here (choose the 32-bit or 64-bit version, as appropriate). Sudo -v & sudo calibre-uninstall & wget -nv -O- | sudo sh /dev/stdin version=4.23.0Ĭhange 4.23.0 above to whatever version you want installed. You can install a previous calibre release, like this: ![]() Wget -nv -O- | sh /dev/stdin install_dir=~/calibre-bin isolated=y You can also do an "isolated" install that only touches files inside the installation folder and does not need to be run as root, like this:.Sudo -v & wget -nv -O- | sudo sh /dev/stdin install_dir=/optĬhange /opt above to whatever folder you want calibre automatically installed to. You can change the folder calibre is installed into from the default (/opt) like this: On servers, if you get an error about a missing libEGL, you might need to install some OpenGL packages such as libegl1 and libopengl0.If you get an error Could not load the Qt platform plugin xcb you are missing some needed X11-XCB libraries, such as libxcb-xinerama0, for details see here.You need GLIBC 2.31 or higher and libstdc++.so.6.0.28 (from gcc 9.3.0) or higher to run calibre.Alternately, simply deleting the installation folder will remove 99% of the installed files. You can uninstall calibre by running sudo calibre-uninstall. You must have xdg-utils, wget, xz-utils and python ≥ 3.3 installed on your system before running the installer. Sudo -v & wget -no-check-certificate -nv -O- | sudo sh /dev/stdin If you still want to proceed, pass the -no-check-certificate option to wget, like this: 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.This may be because the device does not support that format, or has a resolution that is not considered suitable for it.Ĭaliber is also very practical in this sense: it will not only allow you to change the file format, but also to alter some characteristics such as the size, framing, font, and even compress the images.ĭo not forget to download this fantastic classifier of your books. It may be the case that you are trying to read a book on your eReader, but the fonts and styles are out of whack. It is even possible to edit the metadata from the user interface itself. This way it will be easier for you to download any file, without having to use manual methods. It allows you to connect your eReader to your computer and achieve immediate synchronization of our files with it. It is compatible with the main electronic book formats, such as ePUB, MOBIE or FB2, although it also supports other conventional formats, such as PDF, RTF, among many others. In addition, it also allows us to convert between different formats, something that is very practical if we have an electronic book that is not compatible with our eReader. It allows us to classify the readings based on different criteria, such as according to the author who has written them, the date on which it was published, the publisher, among many other options. It allows you to organize your own collection to have everything under control. Caliber is the ultimate tool for reading e-books.
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