Date: Sat, 11 Jul 2020 16:18:22 +0000 (UTC) From: Allan Jude <allanjude@FreeBSD.org> To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r54328 - head/en_US.ISO8859-1/books/handbook/disks Message-ID: <202007111618.06BGIM9f067229@repo.freebsd.org>
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Author: allanjude Date: Sat Jul 11 16:18:22 2020 New Revision: 54328 URL: https://svnweb.freebsd.org/changeset/doc/54328 Log: Update the GELI handbook to be more accurate The description of the key file incorrectly identified it as the master key PR: 208578 Submitted by: Wout Decre <wout@canodus.be> (original version) Reviewed by: bcr, oshogbo Sponsored by: Klara Inc. Event: July 2020 Bugathon Differential Revision: https://reviews.freebsd.org/D15866 Modified: head/en_US.ISO8859-1/books/handbook/disks/chapter.xml Modified: head/en_US.ISO8859-1/books/handbook/disks/chapter.xml ============================================================================== --- head/en_US.ISO8859-1/books/handbook/disks/chapter.xml Sat Jul 11 15:48:48 2020 (r54327) +++ head/en_US.ISO8859-1/books/handbook/disks/chapter.xml Sat Jul 11 16:18:22 2020 (r54328) @@ -2823,15 +2823,20 @@ device crypto</programlisting> <step> <title>Generate the Master Key</title> - <para>The following commands generate a master key - (<filename>/root/da2.key</filename>) that is protected - with a passphrase. The data source for the key file is - <filename>/dev/random</filename> and the sector size of - the provider (<filename>/dev/da2.eli</filename>) is 4kB as - a bigger sector size provides better performance:</para> + <para>The following commands generate a master key that all + data will be encrypted with. This key can never be changed. + Rather than using it directly, it is encrypted with one + or more user keys. The user keys are made up of an + optional combination of random bytes from a file, + <filename>/root/da2.key</filename>, and/or a passphrase. + In this case, the data source for the key file is + <filename>/dev/random</filename>. This command also + configures the sector size of the provider + (<filename>/dev/da2.eli</filename>) as 4kB, for better + performance:</para> <screen>&prompt.root; <userinput>dd if=/dev/random of=/root/da2.key bs=64 count=1</userinput> -&prompt.root; <userinput>geli init -s 4096 -K /root/da2.key /dev/da2</userinput> +&prompt.root; <userinput>geli init -K /root/da2.key -s 4096 /dev/da2</userinput> Enter new passphrase: Reenter new passphrase:</screen>
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