System maintenance – archwiki

Create backups of important data at regular intervals. Database query Those data include configuration files, installed packages and directories such as /etc, /home, /var and for server installations, also /srv.

See Synchronization and backup programs for many alternative applications that may better suit your case. Database isolation levels See Category:System recovery for other articles of interest.

Before editing any configuration files, create a backup so that you can revert to a working version in case of problems.

Database version control Editors like vim and emacs can do this automatically, as well as tools like etckeeper which keep /etc in a version control system (VCS); see dotfiles#Version control for more.

Maintain a list of all installed packages, so that if a complete re-installation is inevitable, it is easier to re-create the original environment.

It can make sense to periodically check and synchronize the backups of LUKS-encrypted partition headers, especially if passphrases have been revoked. Database record definition See Dm-crypt/Device encryption#Backup and restore.

It is recommended to perform full system upgrades regularly, to enjoy both the latest bug fixes and security updates, and also to avoid having to deal with too many package upgrades that require manual intervention at once. Database glossary See Pacman#Upgrading packages for details.

Make sure to have the Arch install media or another Linux “live” CD/USB available so you can easily rescue your system if there is a problem after updating. Data recovery druid If you are running Arch in a production environment, or cannot afford downtime for any reason, test changes to configuration files, as well as updates to software packages, on a non-critical duplicate system first. Data recovery houston tx Then, if no problems arise, roll out the changes to the production system.

Avoid using the –force option with pacman, especially in commands such as pacman -Syu –force involving more than one package. Database 2010 The –force option ignores file conflicts and can even cause file loss when files are relocated between different packages! In a properly maintained system, it should only be used when explicitly recommended by the Arch developers (see #Read before upgrading the system).

Avoid using the -d option with pacman. Dayz database map pacman -Rdd package skips dependency checks during package removal. Database website template As a result, a package providing a critical dependency could be removed, resulting in a broken system.

Arch Linux is a rolling release distribution. 7 data recovery registration code That means when new library versions are pushed to the repositories, the developers and Trusted Users rebuild all the packages in the repositories that need to be rebuilt against the libraries. 7 databases in 7 weeks pdf For example, if two packages depend on the same library, upgrading only one package might also upgrade the library (as a dependency), which might then break the other package which depends on an older version of the library.

That is why partial upgrades are not supported. Database key definition Do not use pacman -Sy package or any equivalent such as pacman -Sy followed by pacman -S package, always upgrade (with pacman -Syu) before installing a package. Database hierarchy Be very careful when using IgnorePkg and IgnoreGroup for the same reason. Data recovery on mac If the system has locally installed packages (such as AUR packages), users will need to rebuild them when their dependencies receive a soname bump.

If a partial upgrade scenario has been created, and binaries are broken because they cannot find the libraries they are linked against, do not “fix” the problem simply by symlinking. Data recovery kali linux Libraries receive soname bumps when they are not backwards compatible. I card data recovery A simple pacman -Syu to a properly synced mirror will fix the problem as long as pacman is not broken.

The bash script checkupdates, included with the pacman package, provides a safe way to check for upgrades to installed packages without running a system update at the same time. Database name See also BBS##1563725.

Before upgrading Arch, always read the latest Arch News to find out if there are any major software or configuration changes with the latest packages. Database quiz Before upgrading fundamental software (such as the kernel, xorg, systemd, or glibc) to a new version, look over the appropriate forum to see if there have been any reported problems.

When upgrading the system, be sure to pay attention to the alert notices provided by pacman. Database url If any additional actions are required by the user, be sure to take care of them right away. Os x data recovery free If a pacman alert is confusing, search the forums and the recent news posts for more detailed instructions.

When pacman is invoked, .pacnew and .pacsave files can be created. Fda 510 k database Pacman provides notice when this happens and users must deal with these files promptly. Database research Users are referred to the Pacnew and Pacsave files wiki page for detailed instructions.

Also, think about other configuration files you may have copied or created. Graph database If a package had an example configuration that you copied to your home directory, check to see if a new one has been created.

If a package update is expected/known to cause problems, packagers will ensure that pacman displays an appropriate message when the package is updated. Data recovery android free If experiencing trouble after an update, double-check pacman’s output by looking at /var/log/pacman.log.

At this point, only after ensuring there is no information available through pacman, there is no relative news on, and there are no forum posts regarding the update, consider seeking help on the forum, over IRC, or by downgrading the offending package.

Pacman does a much better job than you at keeping track of files. Database software If you install things manually you will, sooner or later, forget what you did, forget where you installed to, install conflicting software, install to the wrong locations, etc. Database software definition Instead, learn how to create a package.

See also aconfmgr ( aconfmgr-git AUR), which allows creating a commented configuration file with package lists and changed files. Database error 7719 at exe This allows documenting the reason why a package is installed, so it’s clear when it’s no longer needed.

Always try open source drivers before resorting to proprietary drivers. Data recovery nj Most of the time, open source drivers are more stable and reliable than proprietary drivers. Iphone 6 data recovery mac Open source driver bugs are fixed more easily and quickly. Database design tool While proprietary drivers can offer more features and capabilities, this can come at the cost of stability. H data recovery software To avoid this dilemma, try to choose hardware components known to have mature open source driver support with full features. 1 care data recovery software Information about hardware with open source Linux drivers is available at

Use precaution when using packages from the AUR or an unofficial user repository. Database user interface Most are supplied by regular users and thus may not have the same standards as those in the official repositories. Data recovery jaipur Be careful with AUR helpers which automate installation of AUR packages. Database platforms Always check PKGBUILDs for sanity and signs of mistake or malicious code before building and/or installing the package.

To simplify maintenance, limit the amount of unofficial packages used. Data recovery group Make periodic checks on which are in actual use, and remove (or replace with their official counterparts) any others. Database xls See pacman/Tips and tricks#Maintenance for useful commands.

When looking for files to remove, it is important to find the files that take up the most disk space. C database library Programs that help with this are found in:

Old configuration files may conflict with newer software versions, or corrupt over time. 510 k database Remove unneeded configurations periodically, particularly in your home folder and ~/.config. How to become a database administrator For similar reasons, be careful when sharing home folders between installations.

To keep the home directory clean from temporary files created at the wrong place, it is a good idea to manage a list of unwanted files and remove them regularly, for example with

Old, broken symbolic links might be sitting around your system; you should remove them. Database xml Examples on achieving this can be found here and here.

Arch’s rolling releases can be a boon for users who want to try the latest features and get upstream updates as soon as possible, but they can also make system maintenance more difficult. Database terminology To simplify maintenance and improve stability, try to avoid cutting edge software and install only mature and proven software. Database theory Such packages are less likely to receive difficult upgrades such as major configuration changes or feature removals. Database 1 to 1 relationship Prefer software that has a strong and active development community, as well as a high number of competent users, in order to simplify support in the event of a problem.

Avoid any use of the testing repository, even individual packages from testing. Database testing These packages are experimental and not suitable for a stable system. Database graph Similarly, avoid development packages which are built directly from upstream sources. Database naming conventions These are usually found in the AUR, with names including things like: “dev”, “devel”, “svn”, “cvs”, “git”, etc.

The linux-lts package is an alternative Arch kernel package, and is available in the core repository. Database entity This particular kernel version has long-term support (LTS) from upstream, including security fixes and some feature backports. Database developer It is useful if you prefer the stability of less-frequent kernel updates or if you want a fallback kernel in case a new kernel version causes problems.

To make it available as a boot option, you will need to update your bootloader’s configuration file to use the LTS kernel and ram disk: vmlinuz-linux-lts and initramfs-linux-lts.img.