![]() Exercise caution read error messages with discernment, and seek the wisdom of the Debian community when needed. If the terminal realm appears daunting, remember that a single misstep shall not unravel the fabric of your system. Execute the following command and gain access to the elusive command: sudo apt install lsb-release Should the esteemed lsb_release command elude your grasp, fear not, for salvation lies in installing the necessary package. VERSION_CODENAME="bookworm" Troubleshooting Tips. In a text editor, replace the codename of your release with that of the. sudo apt-get update sudo apt-get upgrade sudo apt-get full-upgrade If you haven't already, ensure all backups are up-to-date. To obtain a Debian release number check content of /etc/lsb-release file: cat lsb_release -aĭescription: Debian GNU/Linux 12 (bookworm)Īdditional information regarding the Debian version can be found within /etc/os-release: cat /etc/os-releaseĮxample output: PRETTY_NAME="Debian GNU/Linux 12 (bookworm)" Run the following, by entering lines beginning with into the shell: First, ensure your system is up-to-date in it's current release. ![]() From terminal run command: cat /etc/issue Some parts of the dpkg build scripts only gained support for it later in the 1.10.The first place to look for the Debian version is to look inside /etc/issue file. The tilde character and its special sorting properties were introduced in dpkg 1.10 and Management system cannot interpret (such as ‘ALPHA’ or ‘pre-’), or with silly orderings. Not intended to cope with version numbers containing strings of letters which the package Numbering, and to cope with situations where the version numbering scheme changes. Note that the purpose of epochs is to allow us to leave behind mistakes in version Strings) are repeated until a difference is found or both strings are exhausted. These two steps (comparing and removing initial non-digit strings and initial digit String (which can only occur at the end of one or both version strings being compared) The numerical values of these two parts are compared, and anyĭifference found is returned as the result of the comparison. Then the initial part of the remainder of each string which consists entirely of digitĬharacters is determined. For example, the following partsĪre in sorted order: ‘~~’, ‘~~a’, ‘~’, the empty part, ‘a’. Values modified so that all the letters sort earlier than all the non-letters and so thatĪ tilde sorts before anything, even the end of a part. The lexical comparison is a comparison of ASCII These two parts (one of which may be empty) are compared lexically. The strings are compared from left to right.įirst the initial part of each string consisting entirely of non-digit characters isĭetermined. The upstream-version and debian-revision parts are compared by the package management The absence of aĭebian-revision compares earlier than the presence of one (but note that theĭebian-revision is the least significant part of the version number). Is one) to determine the upstream-version and debian-revision. It is conventional to restart the debian-revision at ‘1’ each time time theĭpkg will break the version number apart at the last hyphen in the string (if there “debianisation” of it and therefore no revision indication is required. Specifically to be turned into a Debian package, and so there is only one This format represents the case where a piece of software was written It is optional if it isn't present then the upstream-version may not contain a ~ (plus, full stop, tilde) and is compared in the same way as the upstream-version It may contain only alphanumerics and the characters +. This part of the version number specifies the version of the Debian package based If there is no debian-revision then hyphens are not allowed if there is + - : ~ (full stop, plus, hyphen, colon, tilde) and should start withĪ digit. The upstream-version may contain only alphanumerics (“A-Za-z0-9”) and theĬharacters. The upstream-version portion of the version The comparison behavior of the package management system with respect to the Management system's format and comparison scheme. Upstream author(s) however, it may need to be reformatted to fit into the package Usually this will be in the same format as that specified by the The original (“upstream”) package from which the. This is the main part of the version number. Package, and also a package's previous version numbering schemes, to be left It is provided to allow mistakes in the version numbers of older versions of a If it is omitted then the upstream-version may not contain It may be omitted, in whichĬase zero is assumed. Version numbers as used for Debian binary and source packages consist of three components.Įpoch This is a single (generally small) unsigned integer. Deb-version - Debian package version number format
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