Unslung 4.21-alpha: updated README and NOTES, and fixed /mnt in maintenance mode.

BKrev: 42a9981cbTovfsk_G7RMWJvRnaEJoA

3 files changed, 830 insertions, 0 deletions

diff --git a/packages/nslu2-binary-only/unslung-rootfs/NOTES b/packages/nslu2-binary-only/unslung-rootfs/NOTES
index e69de29bb2..9f110f8fe2 100644
--- a/packages/nslu2-binary-only/unslung-rootfs/NOTES
+++ b/packages/nslu2-binary-only/unslung-rootfs/NOTES
@@ -0,0 +1,429 @@
+UNSLUNG-4.x Family Release Notes
+
+Unslung is a replacement firmware image for the Linksys NSLU2 which is designed
+to allow you to make changes to the root filesystem (including the installation
+of downloadable packages) while still providing all the standard product
+functionality.
+
+If, at any time, you have any questions concerning the installation or
+operation of Unslung firmware, your first port of call should be the
+NSLU2-Linux wiki at:
+
+	http://www.nslu2-linux.org
+
+Specifically, check the HowTos and the Frequently Asked Questions before
+posting to the mailing list or asking a question in the IRC channel
+[#nslu2-general @ irc.freenode.net].
+
+OK! Now that that's out of the way...
+
+This file is provided to give general information and usage notes for the
+UNSLUNG-4.x firmware.  If you are looking for installation instructions, please
+stop now and go to the README file.  Follow the README instructions WORD for
+WORD to keep from turning your NSLU2 into a brick.  The information contained
+in this file will make more sense if you have already "unslung" your NSLU2.
+
+--------------------------------------------------------------------------------
+
+These "Notes" are divided into four sections:
+
+     1 - GENERAL INFORMATION
+     2 - IPKG PACKAGES
+     3 - DIVERSION SCRIPTS
+     4 - CHANGELOG
+
+
+GENERAL INFORMATION
+
+As stated above, Unslung firmware is a replacement firmware image for the
+Linksys NSLU2.  The Unslung firmware is intended to be used for loading new
+packages (giving enhanced or additional functionality) with minimal changes
+to the standard user interface and firmware.  The differences in the UNSLUNG 4.x
+firmware from the standard Linksys 2.3R25 firmware can be found at:
+
+	http://www.nslu2-linux.org/wiki/Unslung/UnslungFeatures
+
+For more information about the Unslung firmware, including details on how to
+build it from source code yourself, look at:
+
+	http://www.nslu2-linux.org/wiki/Unslung
+
+There are several assumptions made in this Notes.  One, you've successfully
+unslung your NSLU2, and can verify the basic Linksys functionality (samba
+users, groups, and shares setup with the Linksys interface).  Two, that you can
+get telnet or ssh shell access to your NSLU2 from any computer on the same
+network as the NSLU2.  Three, that you have read and understand the NSLU2-linux
+community rules at:
+
+     http://www.nslu2-linux.org/wiki/Main/HomePage
+
+If you understand the third assumption, then you also understand that there is
+an emphasis on using and developing the NSLU2-Linux wiki.  Clarifications and
+further documentation is always welcomed on the wiki.
+
+If you are experienced with the Linux operating system, then you can make
+changes directly to the root filesystem - changes which are persistent across
+reboot.  If you want to get involved, then check the NSLU2-linux wiki at:
+
+     http://www.nslu2-linux.org/wiki/Main/HowToGetInvolved
+
+
+IPKG PACKAGES
+
+Packages require you to be running Unslung firmware (as you may have already
+guessed!)  In general, ipkg packages are commonly available software packages
+that have been ported to the NSLU2 - giving enhanced or additional
+functionality.  If you run into problems or have specific question with a
+certain package, you should look on the Internet for the general documentation
+about the package first.  If your problem is specific to the NSLU2 port, then
+check for further documentation for the corresponding package on the
+NSLU2-Linux wiki at:
+
+     http://www.nslu2-linux.org/wiki/Unslung/Packages
+
+When you "unsling" an external disk (check the README for instructions),
+downloaded packages will be installed onto that external disk.  The number of
+packages that you can install is only limited by the size of the "data"
+partition on the external disk.  Note that you *must* *not* install any
+packages before you have booted with an external "Unslung" disk.  To do so will
+almost certainly cause your internal jffs2 flash memory become full, and cause
+you to have to reflash your NSLU2.
+
+Package Installation Details
+
+     1) Check for network connectivity to the package repository from the NSLU2
+          first:  "ping ipkg.nslu2-linux.org"
+
+          - If this does not work, then please check the NSLU2 DNS settings in
+               the web interface (under "Administration", "LAN").
+
+     3) Update the list of available packages from new feeds:  "ipkg update"
+
+     4) Check the list of available packages for ones that you want on your
+          NSLU2:  "ipkg list"
+
+     5) Install the packages:  "ipkg install <package-name>"
+
+Most packages put their startup scripts into /opt/etc/init.d - which the
+Unslung firmware automatically runs at boot.  Some other packages are run from
+the cron or xinetd daemons.
+
+You can also check the ipkg command arguments simply by typing "ipkg" at the
+prompt.
+
+
+DIVERSION SCRIPTS
+
+Diversion scripts are used to start packages, set variables or function
+definitions at the time of the NSLU2 boot.  The diversion mechanism allows you
+to add to, or even replace the Linksys script functionality.  They "divert" the
+normal boot scripts to perform the needed action(s) and then can either "return
+1" to continue normal factory script progress or "return 0" to abort the
+diverted factory script.  The diversion of startup scripts is done at the
+lowest granularity, so you can just divert the rc.xinetd script and leave all
+others unchanged.  You are advised to use diversion scripts rather than editing
+system files directly (as this will allow you to upgrade the Unslung firmware
+in the future without having to make all of your changes again).
+
+     - Note:  If you do need to edit the system files directly, you can use the
+          "resling" script to save and load your modified system files.  See
+          the NSLU2-Linux wiki at:
+
+          http://www.nslu2-linux.org/wiki/Unslung/ReSling
+
+Diversion scripts go in the /unslung directory (you may have to create that
+directory first).  Note that after you have unslung to an external disk, then
+the diversion scripts will be stored on that external disk (along with the rest
+of the root filesystem).  This means that recovering from an incorrect
+diversion script is as simple as powering off, unplugging the disk, powering
+on, hot-plugging the disk (note that the diversion scripts will only run if the
+disk is attached at boot), and fix or remove the diversion script.
+
+You may divert as many or as few scripts as you like. Simply add the name of
+the standard rc script into the appropriate /unslung directory and it will be
+run.
+
+For example, I have a script /unslung/rc.local:
+
+#! /bin/sh
+/opt/bin/do_foo
+return 1
+
+That will run at the beginning of the normal /etc/rc.d/rc.local, and then
+the rest of the factory rc.local will be executed.  If I do NOT want to run
+the factory rc.local, my script would be:
+
+#!/bin/sh
+/opt/bin/do_foo
+return 0
+
+That is, if the diversion script returns with something other than 0, it will
+run the rest of the factory script.
+
+Note that any variable definitions or function declarations are allowed to
+happen before the diversion script is called.  This allows you to use the
+variables and functions defined by the factory script.
+
+Also not that telnet is not enabled by default - there is an openssh package
+and a dropbear package that either can replace telnet access with secure shell
+access.
+
+     - Dropbear package details on NSLU2-Linux wiki at:
+
+          http://www.nslu2-linux.org/wiki/HowTo/UseDropBearForRemoteAccess
+
+The rationale behind not enabling telnet by default is ensure that an Unslung
+NSLU2 has the same network footprint as a stock NSLU2 with Linksys firmware.
+That said, if you want to enable telnet on boot, then install the xinetd
+package (which enables telnet by default).
+
+
+CHANGELOG
+
+1.11:
+
+First public release
+
+1.12:
+
+Added a symlink to slingbox for gzip.  Added flashfs (as simple utility for
+preserving user files across hard disk formats during beta testing).
+
+1.13:
+
+Added LD_LIBRARY_PATH to /etc/profile (only works for telnet and ssh access,
+not for serial or diversion scripts).
+
+1.14:
+
+Added Unslung Doc link to the User Guide page.
+
+2.3:
+
+Moved development to OpenEmbedded.
+
+2.4:
+
+Updated to the latest ipk binary instead of the simple script.
+
+2.5:
+
+Added the real wget (instead of using the busybox version).  This is so we can
+support .netrc files for commercial packages.
+
+2.6:
+
+Fixed the unsling script so it removes conflicting files on an upgrade.
+
+2.7:
+
+Began development of the -able variant.
+
+2.8:
+
+Added the patch for genesys enclosures.
+
+2.9:
+
+Reorganized the various variants into a more consistent scheme.
+
+2.10:
+
+Added the ext3flash-on-disk1 functionality.
+
+2.11:
+
+Added the README to /opt/doc.
+
+2.12:
+
+First public release of 2.x firmware.
+
+3.1:
+
+Added jffs2 functionality.
+
+3.2:
+
+Incorporated switchbox functionality.
+
+3.3:
+
+Added ramdisks for /dev and /var to reduce internal flash writes.
+
+3.4:
+
+Replaced flashfs script with new resling script.
+
+3.5:
+
+Added code to reinitialize /etc/mtab on boot.
+
+3.6:
+
+Mounted /dev and /var jffs2 directories as /dev.state and /var.state so that
+they can be used for persistent changes which are used to populate the ramdisks
+on the next boot.
+
+3.7:
+
+Added "Pluggable Personalities" - now runs diversion scripts from both the
+internal jffs2 area and also from an external drive attached at boot time.
+
+3.8:
+
+Enabled mounting of external drives earlier in the boot process, so that the
+rc, rc.sysinit, and rc.1 scripts can be diverted by external diversion scripts
+on an attached drive.
+
+3.9:
+
+Moved a number of -able kernel features (such as USB devfs support) into
+-standard.
+
+3.10:
+
+Added support for unslung-start and unslung-stop diversion scripts, and package
+shutdown scripts (K??foo).
+
+3.11:
+
+Added NFS kernel support (both client and server, and both V2 and V3
+protocols).
+
+3.12:
+
+Added basic maintenance mode support.  If /.ramdisk exists in the jffs2
+filesystem, then the jffs2 filesystem is copied into a ramdisk on boot, and run
+from there.  This allows for updating firmware using the web interface.
+
+3.13:
+
+Added recovery mode support.  If a viable root filesystem cannot be found, then
+switchbox drops into a basic recovery shell, with a telnet daemon running as
+192.168.1.77 with no password.  This behavior can also be forced with a
+/.recovery file in the jffs2 filesystem.
+
+3.14:
+
+Added web control of maintenance mode.  You have to enable maintenance mode and
+reboot before the firmware upgrade page allows you to enter a filename for the
+new firmware.
+
+3.15:
+
+Added confirmation dialog boxes to the maintenance mode web control.
+
+3.16:
+
+First public release of 3.x firmware.
+
+3.17:
+
+Fixed syslog issue.  Added FP patches.
+
+3.18:
+
+Fixed a number of minor issues regarding file permissions.
+Added support for unslinging to the data partition.
+
+4.1:
+
+Split from 3.x stream to allow parallel development.
+
+4.2:
+
+New switchbox implementation with NFS and external USB disk root filesystem support.
+
+4.3:
+
+Enabled devfs.
+
+4.4:
+
+Changed slingbox program locations to match those of OpenSlug so that
+we can use the same switchbox for both.
+
+4.5:
+
+Enabled RAID support modules and USB camera support modules.
+
+4.6:
+
+Merged unslung-standard and unslung-able, and created the oe feed for
+downloadable kernel modules. Updated the unsling script to support
+external rootfs.
+
+4.7:
+
+Enabled lots of traffic shaping modules.  Enabled support for external
+disks on sda1, sda2, sdb1 and sdb2.
+
+4.8:
+
+Made Unslung *not* create ramdisk for /var and /dev when you've
+unslung to an external disk.  Fixed nsswitch.conf.  Updated the feed
+locations.  Added /dev/st devices for tape drive support.
+
+4.9:
+
+Updated the unslung script to give feedback on the rootfs transfer,
+and to preserve an existing upkg database on the target disk.  Added
+more device nodes to support the new downloadable kernel modules.
+
+4.10:
+
+Made Unslung wait until quota checking is complete before running
+package startup scripts.  Simplified unsling to support disk1 and
+disk2 (data partitions) only.
+
+4.11:
+
+Removed /tmp ramdisk if unslung to an external disk.  Now clears /tmp
+and /mnt/backup on each boot.
+
+4.12:
+
+Updated to the latest ipkg version.
+
+4.13:
+
+Added /dev/sdd and /dev/sde device nodes.
+Added support for alternate rootfs under expert user control.
+
+4.14:
+
+Added audio support to the kernel.  Increased the USB disk startup
+wait to 10 seconds, and added the ability to divert rc.bootbin to the
+startup scripts.
+
+4.15:
+
+Added /dev/dsp and updated the README and NOTES files.
+
+4.16:
+
+Added the /sbin/slingover script for migrating packages from the 3.x locations.
+
+4.17:
+
+Developer-only release booting straight from jffs2 instead of using switchbox.
+
+4.18:
+
+A number of /linuxrc fixes.  Removed support for alternate rootfs under expert
+user control (expert users can now just edit the /linuxrc in jffs2 directly).
+
+4.19:
+
+Removed all trace of switchbox from the firmware.  This saves 128Kb of flash,
+and about 1MB of RAM.
+
+4.20:
+
+First public release of 4.x firmware.
+
+4.21:
+
+Upgraded to Linksys firmware V2.3R29, but kept telnetd.
+Fixed maintenance mode.
diff --git a/packages/nslu2-binary-only/unslung-rootfs/README b/packages/nslu2-binary-only/unslung-rootfs/README
index e69de29bb2..c10db14606 100644
--- a/packages/nslu2-binary-only/unslung-rootfs/README
+++ b/packages/nslu2-binary-only/unslung-rootfs/README
@@ -0,0 +1,266 @@
+UNLUNG-4.x Family Release README INSTALLATION
+
+You must follow the steps in this README *exactly*.  Do not skip any steps, and
+do not skip ahead thinking you know what you are doing and don't need to follow
+instructions step by step.
+
+If at any time you have any questions concerning the installation or operation
+of Unslung firmware, your first port of call should be the NSLU2-Linux wiki at:
+
+     http://www.nslu2-linux.org
+
+If you are looking for further Unslung notes - including ipkg usage, diversion
+script details, or ChangeLog information, please consult the associated NOTES
+file.
+
+-------------------------------------------------------------------------------
+
+There are three parts to completing the installation of the Unslung firmware:
+
+     1 - PRE-INSTALLATION CONSIDERATIONS
+     2 - FIRMWARE INSTALLATION DETAILS
+     3 - UNSLINGING DETAILS
+
+
+PRE-INSTALLATION CONSIDERATIONS
+
+1) You *must* test telnet Redboot access first before you flash the Unslung
+     firmware.  Failure to do so will mean you get no sympathy at all if you
+     can't access Redboot when you need to recover from a bad flash.  See
+
+     http://www.nslu2-linux.org/wiki/HowTo/TelnetIntoRedBoot
+
+     - Redboot is the bootloader that runs when the device is first started,
+          loading things into memory and starting Linux.  By testing your
+          ability to telnet into Redboot, you are ensuring that if you injure
+          your NSLU2 with a bad flash you should be able to follow the "How
+          To Recover From A Bad Flash" instructions at
+
+          http://www.nslu2-linux.org/wiki/HowTo/RecoverFromABadFlash
+
+2) If you want to install any packages, then you must have an external disk.
+     It is possible to make changes to the root filesystem in the internal
+     flash storage, but the space is very limited.  In fact, just running
+     "ipkg update" on an NSLU2 which does not have an external disk attached
+     will most likely render the NSLU2 unusable due to filling up the flash (if
+     this happens then you will need to follow the recovery instructions in
+     the previous step).  So unless you are an expert, then use an external
+     disk.
+
+3) The external disk that you use as the target for package installation must
+     be (or have previously been) formatted by the NSLU2.  It is possible to
+     upgrade from UNSLUNG 1.x, 2.x and 3.x without reformatting your disk.
+     The unsling script will not touch anything in /unslung or /opt on your
+     disk, so make sure all your file modifications are in those directories,
+     as you were warned in the README file in UNSLUNG 1.x, 2.x and 3.x :-)
+
+4) If you want to use a flash disk as the target for package installation,
+     ensure that it is at least 256MB, plugged into port 1, and formatted
+     via the Linksys web interface.
+
+5) Please verify that any disks you are going to connect to the NSLU2 are
+     recognized and working properly *before* updating your firmware (including
+     any shares and data you had previously stored.)  If not, DO NOT CONTINUE.
+     You may want to check out "How To Troubleshoot A Drive Missing Condition"
+     at:
+
+     http://www.nslu2-linux.org/wiki/HowTo/TroubleshootADriveMissingCondition
+
+     - The only exception to this, of course, are those enclosures that the
+          stock firmware does not support, but the Unslung firmware does
+          support.
+
+6) If you are upgrading your firmware, you should make a configuration backup
+     via the Linksys web interface.  The configuration backup can be found
+     under "Administration", "Advanced", and then "Backup."  The top section of
+     that webpage is titled "Config Backup" and "Download" should be used to
+     save your NSLU2 Users, Groups and Shares setup to a disk file.
+
+
+FIRMWARE INSTALLATION DETAILS
+
+1) Shutdown the NSLU2, and remove any disks that you may have plugged into the
+     NSLU2.  Power back up the NSLU2.
+
+     - Firmware upgrades must always be performed with *no* hard disks or flash
+          disks attached.  This CANNOT be emphasized enough.  Are you sure you
+          unplugged the disks before powering up?  If so, you may continue.
+
+2) Access the Web interface.  Note that you should use the username "admin" and
+     password "admin" for the web interface at this point (as no disks are
+     attached, the default username and password is the only way to access the 
+     Management web pages).
+
+     2-a) If you are installing Unslung 4.x onto an NSLU2 unit with Linksys
+          standard firmware *or* UNSLUNG 1.x or 2.x, flash unslung-4.x.bin as
+          you normally would flash new firmware (using the web interface
+          "Upgrade Firmware" page).
+
+     2-b) If you are installing Unslung 4.x onto an NSLU2 unit with version 3.x
+          or verions 4.x already installed, you must put the NSLU2 into
+          maintenance mode before you can use the web interface to flash a new
+          version.  Just click the "Enter Maintenance Mode" link on the web
+          interface "Upgrade Firmware" page, wait for the NSLU2 to reboot, and
+          then flash the new firmware in the normal manner.
+
+     - During firmware flashing, the top LED - Ready/Status - flashes red and
+          green (approximately 5 minutes, but can be much longer), and you
+          should receive a Javascript message that indicates that the flash
+          of the firmware was successful.  
+
+     - During flashing, some browsers may hog 100% CPU, and you are advised not
+          to have other activities going on at the client while flashing.
+
+     - The NSLU2 will reboot after the flashing is complete.
+
+3) Shutdown the NSLU2 (again), attach disk(s), and power it back up.
+
+4) Verify your NSLU2 is working normally again at this point in the web
+     interface.  In  particular, you should ensure that all your disks are still
+     recognized as they were before you updated the firmware (including any
+     shares and data you had previously stored.)  If not, DO NOT CONTINUE.
+     You may want to check out "How To Troubleshoot A Drive Missing Condition"
+     at:
+
+     http://www.nslu2-linux.org/wiki/HowTo/TroubleshootADriveMissingCondition
+
+     - If you are not "unslinging", you can stop at this point.  *HOWEVER!*,   
+          the only reason for not unslinging would be in the case of a re-flash
+          of the SAME firmware.  Even if this is a point firmware upgrade, you
+          will need to unsling.
+
+     ***** If you do not choose to do the unslinging procedure described below,
+          DO NOT install packages unless you are SURE you know what you are
+          doing!  "Bricking" your NSLU2 by not unslinging and then running ipkg
+          is not just a possibility, it is a certainty.
+
+5) Shutdown the NSLU2 and unplug *ALL* attached disks.
+
+     - You must NOT have any disk plugged into the NSLU2 when you reboot to
+          perform the next part of installation - the "Unslinging".
+
+
+'UNSLINGING' DETAILS
+
+"Unslinging" is the process of copying the root filesystem of your NSLU2 onto
+an external disk, and configuring that external disk for installation of
+packages. Basically it's a script (stored in /sbin/unsling) which copies all
+the files from the internal jffs2 filesystem onto the external disk and tells
+the internal firmware to load the root filesystem from the external disk when
+booting in the future.
+
+To run the unsling-script you have to be logged in as root (with a telnet
+session).
+
+NOTE:  There are two root-passwords.  One is saved in a internal file called
+/usr/local/passwd (we know this one - it's "uNSLUng" and used when you boot
+without a attached harddisk) the other is stored in a external file called
+/share/hdd/conf/passwd (we don't know this one - it's used when you boot with a
+external harddisk attached).  Later in the process you can change both of
+them. That means:  Everytime you boot WITHOUT a attached harddisk you gain
+root-access with the "uNSLUng" password.  If you boot WITH an attached harddisk,
+you won't have access until you change the file /share/hdd/conf/passwd.
+
+1) Power up the NSLU2 without any disks connected.
+
+     - This only has to be done when you update the firmware.
+
+     ***** To reiterate, you should not have a disk plugged in at this stage.
+          If you powered up your NSLU2 with a disk attached, shutdown the
+          NSLU2, unplug the disks, and power up again.
+
+2) Enable telnet by going to "http://192.168.1.77/Management/telnet.cgi", and
+     press the enable button.
+
+     - If you had previously changed the IP address of your NSLU2 from
+          192.168.1.77 to something else, then you should use that new IP
+          address to enable telnet.  Again note that you should use the username
+          "admin" and password "admin" for the web interface at this point (as
+          no disks are attached, the default username and password is the only
+          way to access the Management web pages).
+
+     - Make sure you have **** NO DISKS ATTACHED AT THIS TIME ****
+
+     - If you plug a disk in before you complete the telnet connection, then
+          the NSLU2 will pick up the Linksys password from the disk, and you
+          will not be able to telnet into it.  So don't have any disks attached
+          at this point.
+
+     - Make sure you have **** NO DISKS ATTACHED AT THIS TIME ****
+
+3) OK, now that you don't have any disks attached, you can proceed and telnet
+     into the NSLU2 using the username root and password uNSLUng.
+
+4) Identify which drive you wish you "unsling", and plug it in.  Wait a minute
+     or two while the disk is mounted.  Check the web interface to make sure
+     that the disk has been recognised by the Linksys software.
+
+     - If the disk has not been previously formatted on the NSLU2, then now is
+          the time to do that.  Make sure that the drive is recognized in the
+          web interface.
+
+5) In the telnet session, run "/sbin/unsling disk1" or "/sbin/unsling disk2"
+     (depending upon whether you want to unsling to a disk connected to the
+     Disk1 port or the Disk2 port).
+
+     - Once you "unsling" to an external disk on a particular port (Disk 1 or
+          Disk 2), it is important that you keep that disk continually plugged
+          into that same port whenever the NSLU2 is turned on.
+
+     ***** Unsling will not change the password on your disk, so if you had
+          previously changed the password on a disk, then your password will
+          not be changed.  Also note that simply editing the /etc/passwd file
+          is not enough to permanently change a password.  See:
+         
+     http://www.nslu2-linux.org/wiki/HowTo/ChangePasswordsFromTheCommandLine
+
+     NOTE: There are two root-passwords.  One is saved in a internal
+          file called /usr/local/passwd (we know this one - it's "uNSLUng"
+          and used when you boot without a attached harddisk) the other is
+          stored in a external file called /share/hdd/conf/passwd (we don't
+          know this one - it's used when you boot with a external harddisk
+          attached).  That means: Everytime you boot WITHOUT a attached harddisk
+          you gain root-access with the "uNSLUng" password.  If you boot
+          WITH an attached harddisk, you won't have access until you change
+          the file /share/hdd/conf/passwd.  So you should change this file
+	  as soon as you unsling to an external disk, before you exit the
+	  telnet session that you are using to unsling to the disk.
+
+6) If you wish to migrate your packages from the old Unslung 3.x location in
+     the /share/hdd/conf (disk1) or /share/flash/conf (disk2) partitions to the
+     new Unslung 4.x location on the data partition, then run:  
+     "/sbin/slingover disk1" (if your packages were previously on disk1 and you
+     ran "/sbin/unsling disk1" in step 5) or "/sbin/slingover disk2" (if your
+     packages were previously on disk2 and you ran "/sbin/unsling disk2" in
+     step 5).
+
+     - If your packages were not stored in /share/hdd/conf or /share/flash/conf
+          (e.g. you had previously moved your packages from the conf partition
+          to the data partition), then all bets are off and you will need to
+          read the /sbin/slingover script and perform the appropriate steps
+          manually.
+
+7) Reboot.
+
+     ***** DO NOT RUN ipkg BEFORE YOU REBOOT AND CONFIRM EXTERNAL ROOTFS *****
+
+     - If you were to run ipkg when the root filesystem is loaded from the
+          internal jffs2 filesystem, then you would fill the flash and cause
+          your NSLU2 to no longer boot and require reflashing to recover.
+
+8) Wait for the NSLU2 to boot, telnet in, and confirm that the root filesystem
+     is being loaded from the external disk.
+
+***** Congratulations, you're now Unslung! *****
+
+Make sure you add an entry to the "The UNSLUNG 4.x" table in the Yahoo group.
+Just use the next free integer for your Unslung number.
+
+If you make no further changes, your NSLU2 will continue to operate normally.
+But to customize things, you'll be downloading packages and adding stuff to the
+/unslung directory using diversion scripts.
+
+Read the NOTES file to expand the capabilities of your uNSLUng NSLU2!
+
+Enjoy!
+
diff --git a/packages/nslu2-binary-only/unslung-rootfs/linuxrc b/packages/nslu2-binary-only/unslung-rootfs/linuxrc
index e69de29bb2..b512a286a6 100644
--- a/packages/nslu2-binary-only/unslung-rootfs/linuxrc
+++ b/packages/nslu2-binary-only/unslung-rootfs/linuxrc
@@ -0,0 +1,135 @@
+#!/bin/sh
+
+# ****  DO NOT EVEN THINK OF EDITING OR REMOVING THIS FILE  ****
+# **** UNLESS YOU REALLY KNOW *EXACTLY* WHAT YOU ARE DOING. ****
+
+
+# Determine the desired rootfs based on user flag files.
+
+if [ -f /.ramdisk ] ; then
+    /bin/echo "Preferred root device is /dev/ram0 (maintenence)"
+    mounted=/mnt
+    prefroot=maintenence
+elif [ -f /.sda1root ] ; then
+    /bin/echo "Preferred root device is /dev/sda1 (disk 1)"
+    mounted=/mnt
+    prefroot=sda1
+elif [ -f /.sda2root ] ; then
+    /bin/echo "Preferred root device is /dev/sda2 (disk 1)"
+    mounted=/mnt
+    prefroot=sda2
+elif [ -f /.sdb1root ] ; then
+    /bin/echo "Preferred root device is /dev/sdb1 (disk 2)"
+    mounted=/mnt
+    prefroot=sdb1
+elif [ -f /.sdb2root ] ; then
+    /bin/echo "Preferred root device is /dev/sdb2 (disk 2)"
+    mounted=/mnt
+    prefroot=sdb2
+elif [ -f /.nfsroot ] ; then
+    /bin/echo "Preferred root device is NFS"
+    mounted=/mnt
+    prefroot=nfsroot
+else
+    /bin/echo "Preferred root device is jffs2"
+    mounted=
+    prefroot=jffs2
+fi
+
+
+# Perform prepatory tasks, and determine whether the desired rootfs is viable.
+
+/bin/mount -t proc proc /proc
+
+if [ $prefroot = "sda1" -o $prefroot = "sda2" -o $prefroot = "sdb1" -o $prefroot = "sdb2" ] ; then
+    /bin/echo "Sleeping 10sec while waiting for disk..."
+    sleep 10
+    /bin/mount -rt ext3 /dev/$prefroot /mnt
+    if [ -L /mnt/sbin/init -o -x /mnt/sbin/init -o \
+	-L /mnt/bin/init  -o -x /mnt/bin/init ] ; then
+	/bin/echo "Root filesystem will be mounted from /dev/$prefroot ..."
+    else
+	/bin/umount /mnt
+	/bin/echo "Can't find valid rootfs on /dev/$prefroot, using jffs2 ..."
+	mounted=
+	prefroot=jffs2
+    fi
+fi
+
+if [ $prefroot = "maintenence" ] ; then
+    /bin/dd if=/dev/zero of=/dev/ram0 bs=1k count=12k 2>/dev/null 
+    /usr/bin/mke2fs -m 0 /dev/ram0 12288
+    /bin/mount -t ext2 /dev/ram0 /mnt
+    ( /usr/bin/find . -print0 -mount | /usr/bin/cpio -p -0 -d -m -u /mnt )
+    /bin/rm -f /mnt/linuxrc
+    /bin/mkdir /mnt/mnt/backup /mnt/mnt/repair /mnt/mnt/tmpmnt
+fi
+
+if [ $prefroot = "nfsroot" ] ; then
+
+    sysconflen=`/bin/dd if=/dev/mtd1 bs=4 count=1 2>/dev/null | /usr/bin/hexdump -n 6 -e '"%02d"'`
+    ipaddr=`/bin/dd if=/dev/mtd1 bs=1 count=$sysconflen skip=4 2>/dev/null | grep ip_addr | sed -e s/ip_addr=//`
+    netmask=`/bin/dd if=/dev/mtd1 bs=1 count=$sysconflen skip=4 2>/dev/null | grep netmask | sed -e s/netmask=//`
+    gateway=`/bin/dd if=/dev/mtd1 bs=1 count=$sysconflen skip=4 2>/dev/null | grep gateway | sed -e s/gateway=//`
+
+    /sbin/insmod ixp400
+    /sbin/insmod ixp425_eth
+    /sbin/ifconfig ixp0 up $ipaddr netmask $netmask
+    /sbin/route add default gw $gateway
+
+    /sbin/ifconfig lo up 127.0.0.1
+
+    # The nfsrootloc and nfsrootopts vars can be overridden here.
+    . /.nfsroot
+
+    /bin/mount $nfsrootopts $nfsrootloc /mnt
+
+    if  [ -L /mnt/sbin/init -o -x /mnt/sbin/init -o \
+	-L /mnt/bin/init  -o -x /mnt/bin/init ] ; then
+	/bin/echo "Root filesystem will be mounted from an NFS root ..."
+	mounted=/mnt
+    else
+	/bin/umount /mnt
+	/bin/echo "Can't find valid NFS rootfs, using jffs2 ..."
+	mounted=
+	prefroot=jffs2
+    fi
+fi
+
+if [ $prefroot = "jffs2" ] ; then
+    /bin/echo "Root filesystem will be mounted from /dev/mtdblock4 ..."
+    mounted=
+fi
+
+
+/bin/umount /proc
+
+# Pivot to the desired rootfs and run the initial executable.
+
+if [ -n "$mounted" ] ; then
+
+    cd $mounted
+
+    if [ -x ./sbin/init -o -L ./sbin/init ] ; then
+	runboot=/sbin/init
+    elif [ -x ./bin/init -o -L ./bin/init ] ; then
+	runboot=/bin/init
+    else
+	runboot=/bin/sh
+    fi
+
+    /sbin/pivot_root . initrd
+
+    exec /usr/sbin/chroot . $runboot < /dev/console 1> /dev/console 2> /dev/console
+
+else
+
+    exec /bin/init
+
+fi
+
+/bin/echo "Can't chroot to $prefroot, using jffs2 ..."
+exec /bin/init
+
+# Last-resort fall-back - this should never be reached.
+/bin/sh