How to Install and Uninstall pg-checksums-doc Package on Ubuntu 21.10 (Impish Indri)

Last updated: May 17,2024

1. Install "pg-checksums-doc" package

This is a short guide on how to install pg-checksums-doc on Ubuntu 21.10 (Impish Indri)


    
        
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                sudo apt update
            
                    
    
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                sudo apt install
            
                        
                pg-checksums-doc
            
                    
    
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2. Uninstall "pg-checksums-doc" package

In this section, we are going to explain the necessary steps to uninstall pg-checksums-doc on Ubuntu 21.10 (Impish Indri):


    
        
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                sudo apt remove
            
                        
                pg-checksums-doc
            
                    
    
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                sudo apt autoclean && sudo apt autoremove
            
                    
    
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3. Information about the pg-checksums-doc package on Ubuntu 21.10 (Impish Indri)

Package: pg-checksums-doc
Architecture: all
Version: 1.0-6
Multi-Arch: foreign
Priority: optional
Section: universe/doc
Source: pg-checksums
Origin: Ubuntu
Maintainer: Ubuntu Developers
Original-Maintainer: Debian PostgreSQL Maintainers
Bugs: https://bugs.launchpad.net/ubuntu/+filebug
Installed-Size: 15
Filename: pool/universe/p/pg-checksums/pg-checksums-doc_1.0-6_all.deb
Size: 6000
MD5sum: 91bc175cc0295f7dd59fe6067b9caf82
SHA1: a6a18ba769dec84e2e50232520ea19edce3c37a8
SHA256: 79f79957754cdf23139e0baf23fcf10f8dc89e1edb4091b22ffbf34362f91e81
SHA512: 841bdac3a208521f86b9eb52fd4c682685547cc26ab0e7ecfe7365c2e119062d82529b8552652413305ad9569586e976a51ff079fb77353f1e5fe7566c46e19e
Homepage: https://github.com/credativ/pg_checksums
Description-en: Activate/deactivate/verify PostgreSQL data checksums (Documentation)
Data checksums allow the PostgreSQL database server to identify I/O failures
when reading data from storage. The checksums stored in the page header of
each data page are compared to the computed checksum of the read data.
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Data checksums need to be activated at instance creation time, all current
versions of PostgreSQL including v11 do not allow activating (or deactivating)
checksums afterwards.
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pg_checksums can activate or deactivate data checksums as long at the database
cluster is shutdown cleanly. Activating checksums requires all database blocks
to be read and all page headers to be updated, so can take a long time on a
large database. Deactivating checksums only requires the cluster control file
to be updated so is quick.
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In addition, pg_checksums can verify the checksums in an offline cluster.
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This package contains the manpage.
Description-md5: 34b1beebadbbe2a791aea976a934f437