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--- slackware:truecrypt [2013/12/29 12:39] – created slack
+++ slackware:truecrypt [2019/11/07 17:58] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-Truecrypt binary root priveleges
+There is a slackbuild, which maybe fixes all this stuff, but itself has some odd dependencies.  The site has an installer for the cl version.
-The Truecrypt binary needs to have root privileges. I installed Truecrypt 6.0a on Slackware 12.1 and it gives me the same message. The fix is to create a group with the privilege of running the truecrypt binary and add your unprivileged (non-root) users to the truecrypt group so they can run Truecrypt. Do the following (need to su):
+======Truecrypt binary root privileges======
+The Truecrypt binary needs to have root privileges. I installed Truecrypt 6.0a on Slackware 12.1 and it gives me the same message. The fix is to create a group with the privilege of running the truecrypt binary and add your unprivileged (non-root) users to the truecrypt group so they can run Truecrypt. Do the following (as root):
+<code>
 # groupadd truecrypt
+</code>
 Now you edit the sudoers file (must be done with vi!)
+<code>
 # visudo
+</code>
 Add the following 2 lines to the bottom of the sudoers file:
+<code>
 # Allow users of truecrypt group to run truecrypt as root.
 %truecrypt ALL=(root) NOPASSWD:/usr/bin/truecrypt
+</code>
 Save it and exit visudo
 Now add your regular users to the truecrypt group
-# gpasswd -a regularuser1 truecrypt
+<code>
-# gpasswd -a regularuser2 truecrypt
+# gpasswd -a regularuser truecrypt
+</code>
+or for many users
+<code>
+# gpasswd -M first_user,second_user,etc truecrypt
+</code>
+Affected users need to log out and back in again.
 The Truecrypt file containers default mount on:
+<code>
 /media/truecryptX
+</code>
 where X is the slot number you choose from the graphical interface when you mount the file container.
-Thank you to the Gentoo Wiki.
+Mount and unmount with
+<code>
+truecrypt /path/to/encrypted/file /path/to/mount/point
+truecrypt -d /path/to/mount/point
+truecrypt -d # unmounts all
+</code>
+although mounting in non-default locations [[http://lyuts.net/blog/2011/10/device-busy-then-unmounting-truecrypt-container|seems to cause some serious difficulties (device busy) with unmounting]], so I suggest sticking with the default (in /media) unless there's a compelling reason not to.
+https://wiki.archlinux.org/index.php/TrueCrypt#Mount_volumes_as_a_normal_user