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slackware:fixes [2006/09/29 20:27] – Shift-PageUp explained alienslackware:fixes [2008/11/18 16:00] (current) – Explain about HAL related mount error alien
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 One trick can save the day: when your computer finsishes booting up and displays the login prompt, you can scroll back by pressing the key combination <key>Shift</key> <key>Page Up</key> repeatedly!\\ You need to use a VESA console though, and not have your system configured for graphical login (runlevel 4). One trick can save the day: when your computer finsishes booting up and displays the login prompt, you can scroll back by pressing the key combination <key>Shift</key> <key>Page Up</key> repeatedly!\\ You need to use a VESA console though, and not have your system configured for graphical login (runlevel 4).
 +
 +----------------
 +
 +==== "A security policy in place prevents this sender ..." error ====
 +
 +With Slackware 12.0 and onwards, when you are running X Window, and are greeted by the following message when you insert a CD, DVD, or USB stick into the computer: <note warning>
 +A security policy in place prevents this sender from sending this message to this recipient, see message bus configuration file (rejected message had interface "org.freedesktop.Hal.Device.Volume" member "Mount" error name "(unset)" destination "org.freedesktop.Hal")
 +</note> this means that you need to add your user account to the //plugdev// group.\\ 
 +The command to add your account (for example account called //"alien"//) to the group //plugdev// is: <code>
 +gpasswd -a alien plugdev</code> You need to logout and login again in order for this change to have effect.\\ 
 +If you start your computer in runlevel 3 (non-graphical boot) and run ''"groups"'' you will notice that your account seems to be part of the //plugdev// group already. This is true in a sense: Slackware adds your account to this group and several others like cdrom, floppy //dynamically// for the duration of your login session. Unfortunately the DBUS/HAL daemons do not use Linux system calls to check your group membership. Instead, they rely on what is written in the ''/etc/group'' file.
 +
 +This HAL related issue is actually explained in the CHANGES_AND_HINTS.TXT file (here is a link to the Slackware 12.1 version of [[http://slackware.osuosl.org/slackware-12.1/CHANGES_AND_HINTS.TXT|CHANGES_AND_HINTS.TXT]]). Highly recommened reading material, that file!

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