Update the question about vfs.usermount. From the PR:
The attached patch to the FAQ file adds CDROMs to the title and
procedure, lowers the device permissions a bit, including an
example on how to restrict the ability to a group, and adds the
sysctl.conf step. I reorganized the text a bit to work better
with the new information.
Submitted by: Mike Meyer <mwm@mired.org>
PR: docs/22297
Rewrite the section on accessing virtual terminals from X.
Prompted by: Neil Youngman <Neil_Youngman@nai.com>
This commit is contained in:
Nik Clayton
parent
c593fa7abc
commit
9ea241c2f4
Notes:
svn2git
2020-12-08 03:00:23 +00:00
svn path=/head/; revision=8204
2 changed files with 128 additions and 60 deletions
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@ -15,7 +15,7 @@
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</author>
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</authorgroup>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.110 2000/10/12 20:36:03 jkh Exp $</pubdate>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.111 2000/10/17 16:29:23 nik Exp $</pubdate>
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<abstract>
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<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
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@ -6343,7 +6343,7 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<qandaentry>
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<question>
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<para>How do I let ordinary users mount floppies and other removable
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<para>How do I let ordinary users mount floppies, CDROMs and other removable
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media?</para>
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</question>
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@ -6352,6 +6352,14 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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how:</para>
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<procedure>
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<step>
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<para>As <username>root</username> set the sysctl variable
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<varname>vfs.usermount</varname> to
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<literal>1</literal>.</para>
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<screen>&prompt.root; <userinput>sysctl -w vfs.usermount=1</userinput></screen>
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</step>
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<step>
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<para>As <username>root</username> assign the appropriate
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permissions to the block device associated with the
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@ -6360,24 +6368,38 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<para>For example, to allow users to mount the first floppy
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drive, use:</para>
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<screen>&prompt.root; <userinput>chmod 777 /dev/fd0</userinput></screen>
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<screen>&prompt.root; <userinput>chmod 666 /dev/fd0</userinput></screen>
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<para>To allow users in the group
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<username>operator</username> to mount the cdrom drive,
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use:</para>
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<screen>&prompt.root; <userinput>chgrp operator /dev/cd0c</userinput>
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&prompt.root; <userinput>chmod 640 /dev/cd0c</userinput></screen>
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</step>
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<step>
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<para>As <username>root</username> set the sysctl variable
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<varname>vfs.usermount</varname> to
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<literal>1</literal>.</para>
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<screen>&prompt.root; <userinput>sysctl -w vfs.usermount=1</userinput></screen>
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</step>
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<step>
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<para>Finally, add the line
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<literal>vfs.usermount=1</literal> to the file
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<filename>/etc/sysctl.conf</filename> so that it is reset
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at system boot time.</para>
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</step>
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</procedure>
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<para>Users can now mount <filename>/dev/fd0</filename> onto a
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directory that they own:</para>
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<para>All users can now mount the floppy
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<filename>/dev/fd0</filename> onto a directory that they
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own:</para>
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<screen>&prompt.user; <userinput> mkdir ~/my-mount-point</userinput>
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&prompt.user; <userinput> mount -t msdos /dev/fd0 ~/my-mount-point</userinput></screen>
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<para>Users in group <username>operator</username> can now
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mount the cdrom <filename>/dev/cd0c</filename> onto a
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directory that they own:</para>
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<screen>&prompt.user; <userinput> mkdir ~/my-mount-point</userinput>
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&prompt.user; <userinput> mount -t msdos /dev/cd0c ~/my-mount-point</userinput></screen>
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<para>Unmounting the device is simple:</para>
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<screen>&prompt.user; <userinput>umount <filename>~/my-mount-point</filename></userinput></screen>
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@ -6385,8 +6407,7 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<para>Enabling <varname>vfs.usermount</varname>, however, has
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negative security implications. A better way to access MSDOS
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formatted media is to use the <ulink
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URL="http://www.freebsd.org/cgi/ports.cgi?query=%5Emtools-&stype=name">mtools</ulink>
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package in the ports collection.</para>
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URL="http://www.freebsd.org/cgi/ports.cgi?query=%5Emtools-&stype=name">mtools</ulink> package in the ports collection.</para>
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</answer>
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</qandaentry>
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@ -6522,7 +6543,6 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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</question>
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<answer>
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<para>If you are using syscons (the default console driver),
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you can configure FreeBSD to support a mouse pointer on each
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virtual screen. In order to avoid conflicting with X, syscons
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@ -6841,17 +6861,18 @@ ttyvb "/usr/libexec/getty Pc" cons25 on secure</programlisting>
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want to change the <literal>secure</literal>
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to <literal>insecure</literal>.</para>
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<para>
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<para>
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<important>
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<para>If you want to run an X server you
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<emphasis>MUST</emphasis> leave at least one virtual
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<emphasis>must</emphasis> leave at least one virtual
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terminal unused (or turned off) for it to use. That is to
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say that if you want to have a login prompt pop up for all
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twelve of your Alt-function keys, you're out of luck - you
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can only do this for eleven of them if you also want to run
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an X server on the same machine.</para>
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</important></para>
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</important>
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</para>
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<para>The easiest way to disable a console is by turning it off.
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For example, if you had the full 12 terminal allocation
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mentioned above and you wanted to run X, you would change
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@ -6901,18 +6922,31 @@ ttyvb "/usr/libexec/getty Pc" cons25 off secure</programlisting>
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<para>How do I access the virtual consoles from X?</para>
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</question>
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<answer>
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<para>If the console is currently displaying X Window, you can
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use Ctrl-Alt-F1, etc. to switch to a virtual console. Note,
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however, that once you've switched away from X Window to a
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virtual terminal, you may use only the Alt- function key to
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switch to another virtual terminal or back to X Window. You do
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not need to also press the Ctrl key. If you use the control key
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to switch back to X on some older releases, you can find your
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text console stuck in <quote>control-lock</quote> mode. Tap the
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control key to wake it up again.</para>
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<answer>
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<para>Use <keycombo action="simul">
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<keycap>Ctrl</keycap>
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<keycap>Alt</keycap>
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<keycap>F<replaceable>n</replaceable></keycap>
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</keycombo> to switch back to a virtual console.
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<keycombo action="simul">
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<keycap>Ctrl</keycap>
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<keycap>Alt</keycap>
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<keycap>F1</keycap>
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</keycombo> would return you to the first virtual console.</para>
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<para>Once you are back to a text console, you can then use
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<keycombo action="simul">
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<keycap>Alt</keycap>
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<keycap>F<replaceable>n</replaceable></keycap>
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</keycombo> as normal to move between them.</para>
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<para>To return to the X session, you must switch to the virtual
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console running X. If you have eight virtual consoles then X will
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be running on the ninth, and you would use
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<keycombo action="simul">
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<keycap>Alt</keycap>
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<keycap>F9</keycap>
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</keycombo> to return.</para>
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</answer>
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</qandaentry>
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@ -15,7 +15,7 @@
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</author>
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</authorgroup>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.110 2000/10/12 20:36:03 jkh Exp $</pubdate>
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<pubdate>$FreeBSD: doc/en_US.ISO_8859-1/books/faq/book.sgml,v 1.111 2000/10/17 16:29:23 nik Exp $</pubdate>
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<abstract>
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<para>This is the FAQ for FreeBSD versions 2.X, 3.X, and 4.X.
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@ -6343,7 +6343,7 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<qandaentry>
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<question>
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<para>How do I let ordinary users mount floppies and other removable
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<para>How do I let ordinary users mount floppies, CDROMs and other removable
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media?</para>
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</question>
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@ -6352,6 +6352,14 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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how:</para>
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<procedure>
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<step>
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<para>As <username>root</username> set the sysctl variable
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<varname>vfs.usermount</varname> to
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<literal>1</literal>.</para>
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<screen>&prompt.root; <userinput>sysctl -w vfs.usermount=1</userinput></screen>
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</step>
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<step>
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<para>As <username>root</username> assign the appropriate
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permissions to the block device associated with the
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@ -6360,24 +6368,38 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<para>For example, to allow users to mount the first floppy
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drive, use:</para>
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<screen>&prompt.root; <userinput>chmod 777 /dev/fd0</userinput></screen>
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<screen>&prompt.root; <userinput>chmod 666 /dev/fd0</userinput></screen>
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<para>To allow users in the group
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<username>operator</username> to mount the cdrom drive,
|
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use:</para>
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<screen>&prompt.root; <userinput>chgrp operator /dev/cd0c</userinput>
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&prompt.root; <userinput>chmod 640 /dev/cd0c</userinput></screen>
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</step>
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<step>
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<para>As <username>root</username> set the sysctl variable
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<varname>vfs.usermount</varname> to
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<literal>1</literal>.</para>
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<screen>&prompt.root; <userinput>sysctl -w vfs.usermount=1</userinput></screen>
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</step>
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<step>
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<para>Finally, add the line
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<literal>vfs.usermount=1</literal> to the file
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<filename>/etc/sysctl.conf</filename> so that it is reset
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at system boot time.</para>
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</step>
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</procedure>
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<para>Users can now mount <filename>/dev/fd0</filename> onto a
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directory that they own:</para>
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<para>All users can now mount the floppy
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<filename>/dev/fd0</filename> onto a directory that they
|
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own:</para>
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<screen>&prompt.user; <userinput> mkdir ~/my-mount-point</userinput>
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&prompt.user; <userinput> mount -t msdos /dev/fd0 ~/my-mount-point</userinput></screen>
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<para>Users in group <username>operator</username> can now
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mount the cdrom <filename>/dev/cd0c</filename> onto a
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directory that they own:</para>
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<screen>&prompt.user; <userinput> mkdir ~/my-mount-point</userinput>
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&prompt.user; <userinput> mount -t msdos /dev/cd0c ~/my-mount-point</userinput></screen>
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<para>Unmounting the device is simple:</para>
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<screen>&prompt.user; <userinput>umount <filename>~/my-mount-point</filename></userinput></screen>
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@ -6385,8 +6407,7 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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<para>Enabling <varname>vfs.usermount</varname>, however, has
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negative security implications. A better way to access MSDOS
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formatted media is to use the <ulink
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URL="http://www.freebsd.org/cgi/ports.cgi?query=%5Emtools-&stype=name">mtools</ulink>
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package in the ports collection.</para>
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URL="http://www.freebsd.org/cgi/ports.cgi?query=%5Emtools-&stype=name">mtools</ulink> package in the ports collection.</para>
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</answer>
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</qandaentry>
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@ -6522,7 +6543,6 @@ define(`confDELIVERY_MODE',`deferred')dnl</programlisting>
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</question>
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<answer>
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<para>If you are using syscons (the default console driver),
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you can configure FreeBSD to support a mouse pointer on each
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virtual screen. In order to avoid conflicting with X, syscons
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|
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@ -6841,17 +6861,18 @@ ttyvb "/usr/libexec/getty Pc" cons25 on secure</programlisting>
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want to change the <literal>secure</literal>
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to <literal>insecure</literal>.</para>
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<para>
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<para>
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<important>
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<para>If you want to run an X server you
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<emphasis>MUST</emphasis> leave at least one virtual
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<emphasis>must</emphasis> leave at least one virtual
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terminal unused (or turned off) for it to use. That is to
|
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say that if you want to have a login prompt pop up for all
|
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twelve of your Alt-function keys, you're out of luck - you
|
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can only do this for eleven of them if you also want to run
|
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an X server on the same machine.</para>
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</important></para>
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</important>
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</para>
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|
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<para>The easiest way to disable a console is by turning it off.
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For example, if you had the full 12 terminal allocation
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mentioned above and you wanted to run X, you would change
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|
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@ -6901,18 +6922,31 @@ ttyvb "/usr/libexec/getty Pc" cons25 off secure</programlisting>
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<para>How do I access the virtual consoles from X?</para>
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</question>
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<answer>
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|
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<para>If the console is currently displaying X Window, you can
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use Ctrl-Alt-F1, etc. to switch to a virtual console. Note,
|
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however, that once you've switched away from X Window to a
|
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virtual terminal, you may use only the Alt- function key to
|
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switch to another virtual terminal or back to X Window. You do
|
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not need to also press the Ctrl key. If you use the control key
|
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to switch back to X on some older releases, you can find your
|
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text console stuck in <quote>control-lock</quote> mode. Tap the
|
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control key to wake it up again.</para>
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<answer>
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<para>Use <keycombo action="simul">
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<keycap>Ctrl</keycap>
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<keycap>Alt</keycap>
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<keycap>F<replaceable>n</replaceable></keycap>
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</keycombo> to switch back to a virtual console.
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<keycombo action="simul">
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<keycap>Ctrl</keycap>
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<keycap>Alt</keycap>
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<keycap>F1</keycap>
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</keycombo> would return you to the first virtual console.</para>
|
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|
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<para>Once you are back to a text console, you can then use
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<keycombo action="simul">
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<keycap>Alt</keycap>
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<keycap>F<replaceable>n</replaceable></keycap>
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</keycombo> as normal to move between them.</para>
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|
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<para>To return to the X session, you must switch to the virtual
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console running X. If you have eight virtual consoles then X will
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be running on the ninth, and you would use
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<keycombo action="simul">
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<keycap>Alt</keycap>
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<keycap>F9</keycap>
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</keycombo> to return.</para>
|
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</answer>
|
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</qandaentry>
|
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||||
|
|
|
|||
Loading…
Reference in a new issue