diff options
author | Holger Wansing <hwansing@mailbox.org> | 2020-12-02 19:00:36 +0100 |
---|---|---|
committer | Holger Wansing <hwansing@mailbox.org> | 2020-12-02 19:00:36 +0100 |
commit | 6301807724c11d6bc2fd937969cd7bd2c543373c (patch) | |
tree | 32164f1c885698eed6b1298d37e7405a1510e55a /en/install-methods/verifying-files.xml | |
parent | 04d55f927302f4047d778b19151695813f4ef8f7 (diff) | |
download | installation-guide-6301807724c11d6bc2fd937969cd7bd2c543373c.zip |
Add chapter about verifying integrity of installation images
Diffstat (limited to 'en/install-methods/verifying-files.xml')
-rw-r--r-- | en/install-methods/verifying-files.xml | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/en/install-methods/verifying-files.xml b/en/install-methods/verifying-files.xml new file mode 100644 index 000000000..9cbffb94f --- /dev/null +++ b/en/install-methods/verifying-files.xml @@ -0,0 +1,71 @@ +<!-- retain these comments for translator revision tracking --> +<!-- $Id$ --> + + <sect1 id="verifying-files"> + <title>Verifying the integrity of installation files</title> + +<para> + +You can verify the integrity of downloaded files against checksums +provided in <filename>SHA256SUMS</filename> or <filename>SHA512SUMS</filename> +files on Debian mirrors. You can find them in the same places as the installation images +itself. +Visit the following locations: + +</para> + +<itemizedlist> +<listitem><para> + +<ulink url="https://cdimage.debian.org/debian-cd/current/&architecture;/iso-cd/">checksum +files for CD images</ulink>, + +</para></listitem> +<listitem><para> + +<ulink url="https://cdimage.debian.org/debian-cd/current/&architecture;/iso-dvd/">checksum +files for DVD images</ulink>, + +</para></listitem> +<listitem condition="has-bd-iso"><para> + +<ulink url="https://cdimage.debian.org/debian-cd/current/&architecture;/iso-bd/">checksum +files for BD images</ulink>, + +</para></listitem> +<listitem><para> + +<ulink url="http://http.us.debian.org/debian/dists/&releasename;/main/installer-&architecture;/current/images/">checksum +files for other installation files</ulink>. + +</para></listitem> +</itemizedlist> + +<para> + +To compute the checksum of a downloaded installation file, use + +<informalexample><screen> +sha256sum filename.iso +</screen></informalexample> + +respective + +<informalexample><screen> +sha512sum filename.iso +</screen></informalexample> + +and then compare the shown checksum against the corresponding one in the +<filename>SHA256SUMS</filename> respective <filename>SHA512SUMS</filename> file. + +</para><para> + +The <ulink url="&url-debian-cd-faq;">Debian CD FAQ</ulink> has +<ulink url="https://www.debian.org/CD/faq/index.en.html#verify">more useful information</ulink> +on this topic (such as the script <filename>check_debian_iso</filename>, to semi-automate +above procedure), as well as instructions, how to verify the integrity of the above checksum +files themselves. + +</para> + + </sect1> |