playground:plan_9_second_edition []

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======= Plan 9 Second Edition =======

|**DRAFT**: Plan 9 Second Edition from Bell Labs.|
|Tutorial [**x**] Guide [ ]|
|  :!: System CPU //Execution Cap: 40%//  |

  * For educational and informational purposes only. [[playground:plan_9_second_edition#disk1img|Networking]] is not [[playground:plan_9_second_edition#disk1img|supported]].
  * //You're stuck with this small [VirtualBox FreeDOS] screen [display resolution].//
  * VirtualBox display scale factor setting is available.

==== Chronology ====

^Date^ Release^ Comment^
|1992|Plan 9 1st edition|Released by Bell Labs to universities|
|1995|Plan 9 2nd edition|Released by Bell Labs for non-commercial purposes <sup>[[wp>Plan_9_from_Bell_Labs#History|History]]</sup>|
|2000|Plan 9 3rd ed. (Brazil)|Released by Lucent Technologies under an open source license|
|2002|Plan 9 4th edition|Released by Lucent Technologies under a new free software license|

|README|http://doc.cat-v.org/plan_9/2nd_edition/README|
|special interest|http://doc.cat-v.org/plan_9/2nd_edition/|
|ways to install|http://doc.cat-v.org/plan_9/2nd_edition/install|

<file config An asciidoc version of Plan 9 Second Edition.>

== Install summary

=== Start a recent version of VirtualBox.

* Install FreeDOS from the FD13LIVE.iso with the default VirtualBox settings.
* Install FreeDOS with the default install.

* Initial virtual disk settings after the default FreeDOS install to C: (Device 1).
* Initial virtual disk settings after the FDISK (17 MB, PRI DOS, FAT16) D: partition (Device 0).
----
IDE Primary Device 1: freedos-13.vdi (Normal, 500.00 MB)
IDE  Secondary Device 0: freedos-13_1.vdi (Normal, 500.00 MB)
----

=== CD-ROM Install

==== The Plan 9 Second Edition CD-ROM (plan9-2e.iso) Install Target [D:] is the ~568 MB non-partitioned area after the previously partitioned 3% (17 MB, PRI DOS, FAT16) and formatted disk space:

* Managed/modified disk (Device 0; D:) setting:

----
$ VBoxManage showmediuminfo 'freedos-13_1.vdi'
Capacity:       500 MBytes
----
----
$ VBoxManage modifymedium 'freedos-13_1.vdi' --compact
$ VBoxManage modifymedium 'freedos-13_1.vdi' --resize 586
----

=== Demo Install

* Postpone the Demo install if completing the CD-ROM install.

==== The Plan 9 Second Edition Floppy Diskette (2-4) Install Target [C:] is the non-partitioned 25 MB area after the previously partitioned 95% (A, 500 MB, PRI DOS, FAT16) and formatted disk space:

* Managed/modified disk (Device 1; C:) setting:
----
$ VBoxManage showmediuminfo 'freedos-13.vdi'
Capacity:       500 MBytes
----
----
$ VBoxManage modifymedium 'freedos-13.vdi' --compact
$ VBoxManage modifymedium 'freedos-13.vdi' --resize 525
----

=== Run FreeDOS 1.3  in "Safe Mode" (press #3).

* 3 - Load FreeDOS low with some drivers (Safe Mode)

=== Review with FreeDOS and FDISK

----
C:\> fdisk

Do you want to use large disk (FAT 32) support (Y/N).[Y]?
Enter choice: [4]

"... Usage"
"... 95%"

"Total disk space is  525 Mbytes (1 Mbyte = 1048576 bytes)"

Press Esc to continue
Press Esc to exit FDISK

C:\> d:
D:\> fdisk

Do you want to use large disk (FAT 32) support (Y/N).[Y]?
Enter choice: [5]

Enter Fixed Disk Drive Number (1-2).....[2]

"Current Fixed Disk Drive: 2"

Enter choice: [4]

"... Usage"
"... 3%"

"Total disk space is  565 Mbytes (1 Mbyte = 1048576 bytes)"

Press Esc to continue
Press Esc to exit FDISK

D:\> 
----

=== Floppy Diskettes and README file

/ plan_9 / 2nd_edition / plan9.att.com / pcdist
http://doc.cat-v.org/plan_9/2nd_edition/plan9.att.com/pcdist/

    README
    disk1
    disk1.orig
    disk2.vd
    disk2.vd.orig
    disk3.vd
    disk3.vd.orig
    disk4.vd
    disk4.vd.orig

** Copy README, disk1, disk2.vd, disk3.vd, and disk4.vd to the VirtualBox host machine.
** disk1 (rename to disk1.img) is a boot-able diskette, and used to configure the C:\plan9\plan9.ini or D:\plan9\plan9.ini
** disk2.vd, disk3.vd, and disk4.vd are files that must be copied to new diskettes (disk2.img, disk3.img and disk4.img).

=== Notes:

* Create a blank floppy.img with VirtualBox, for use with FreeDOS:
** Floppy Drive Device 0:
** Choose/Create A Virtual Floppy Disk...
** Floppy Disk Selector (Popup)
** Create Disk Image (Icon)
** File Path: (rename the floppy.img as needed)
** Size: 1.44
** Format disk as FAT 12

* Create three copies of the new blank floppy.img (disk2.img, disk3.img, disk4.img):
* Copy  disk2.vd to the disk2.img
* Copy  disk3.vd to the disk3.img
* Copy  disk4.vd to the disk4.img

=== A VirtualBox host copy example:
----
$ sudo mkdir /media/floppy1/
$ sudo mount -o loop disk2.img /media/floppy1/
$ sudo cp disk2.vd /media/floppy1/disk2.vd
$ sudo umount /media/floppy1/
----

=== Final VirtualBox guest Configuration Results:

* General
----
Name: freedos-13
Operating System: DOS
----
* System
----
Base Memory: 32 MB
Execution Cap: 40%
Boot Order: Floppy, Optical, Hard Disk
Acceleration: VT-x/AMD-V, Nested Paging
----
* Display
----
Video Memory: 9 MB
Graphics Controller: VboxVGA
Remote Desktop Server: Disabled
Recording: Disabled
----
* Storage
----
Controller: Floppy
   Floppy Device 0: Empty
Controller: IDE
   IDE Primary Device 0: [Optical Drive] plan9-2e.iso (375.27 MB)
   IDE Primary Device 1: freedos-13.vdi (Normal, 525.00 MB)
   IDE  Secondary Device 0: freedos-13_1.vdi (Normal, 575.00 MB)
----
* Audio
----
Host Driver: PulseAudio
Controller: SoundBlaster 16
----
* Network
* USB
----
Disabled
----
* Shared folders
----
None
----
* Description
----
None
----

* VirtualBox - Bugs: High CPU usage of FreeDOS machine
http://wiki.freedos.org/wiki/index.php/VirtualBox_-_Bugs:_High_CPU_usage_of_FreeDOS_machine

* System (CPU usage adjustment)
----
Base Memory: 32 MB
Execution Cap: 40%
[ ]
----

=== Boot the FreeDOS VM with diskette disk1.img to configure C:\plan9\plan9.ini:

Plan 9 Second Edition Menu: "System Instillation & Configuration"

==== Menu
"Select a disc containing a FAT-based filesystem." [If the disc you want does not appear...]
"/dev/hd1"
"/dev/hd2"

** Select /dev/hd1 to configure the C:\plan9\plan9.ini
** Select /dev/hd2 to configure the D:\plan9\plan9.ini

* Remove the floppy diskette before restarting the FreeDOS VM.

* Install the Plan 9 Second Edition Demo.

----
C:\>plan9\b
----

Plan 9 Second Edition Menu: "File System Instillation"

** Select /dev/hd1 to configure the C:\plan9\plan9.ini

Select: "1. Install 3 Diskette System to local drive"
** (The following menu steps may require several attempts before the "3 Diskette System" is installed [in a familiar way], and configured, without interruption.)

** Make the newly installed Plan 9 the default (avoid this option initially)
** Reconfigure the system (possible)
** Exit to system (avoid this option)
** Reboot (possible)

** Remove the floppy diskette from the virtual drive before restarting.

=== "Reconfigure the system" by booting with diskette disk1.img after installing disk2.img, disk3.img, disk4.img, or the plan9-2e.iso, to a virtual hard disk drive storage device.

** Avoid "File System Installation"
** Select "An active Plan 9 system"

* Start the Plan 9 Second Edition Demo.
----
C:\>plan9\b
root is from (local, 9600, 19200, il)[local!#H/hd1fs]:
(press return/enter)

user[none]
(press return/enter)
----
----
/bin/dossrv 19 serving #s/dos
Start window system (y/n)?
(type y, then  press return/enter.)
----
----
[]
Welcome to Plan 9.
This is rc.
term%
----

* (type 'disk/kfscmd halt' in a terminal window, then  press return/enter to cleanly halt the system.)

Menu configuration note:

* Select /dev/hd1 to configure the C:\plan9\plan9.ini

** Example Second Edition demo /dev/hd1 plan9.ini:
----
mouseport=ps2
monitor=vga
vgasize=800x600x1
console=cga

bootfile=h!1
----

Disk1 re-config note:

* VGA setup
** 640x480x1
** vga - Basic monitor or laptop LCD
* Mouse type
** PS2
* Ethernet card
** None
* ATA (IDE) controller
** None
* SCSI controller
** None
* SoundBlaster
** None
* SoundBlaster CD-ROM
** None
* File system console
** CGA
* Save configuration
** Save

=== Display configuration

9.6. Advanced Display Configuration
http://www.virtualbox.org/manual/ch09.html#adv-display-config

FreeDOS small screensize
https://forums.virtualbox.org/viewtopic.php?t=9816
"You're stuck with this small screen."

B.COM(8)
http://man.cat-v.org/plan_9_2nd_ed/8/b.com

PLAN9.INI(8)
http://man.cat-v.org/plan_9_2nd_ed/8/plan9.ini

VGA(8)
http://man.cat-v.org/plan_9_2nd_ed/8/vga

Notes:

Adding a monitor to vgadb
https://plan9.io/wiki/plan9/adding_a_monitor_to_vgadb/index.html

/usr/web/sources/patch/applied/vgadb_additions/vgadb.orig
https://plan9.io/sources/patch/applied/vgadb_additions/vgadb.orig

Kfs file system configuration
https://plan9.io/wiki/plan9/Kfs_file_system_configuration/index.html

Papers
PLAN 9 RELEASE 2 (1995)
https://plan9.io/wiki/plan9/papers/

=== ISO image

Plan 9 Foundation
https://plan9foundation.org/

FreeDOS Wiki
http://wiki.freedos.org/wiki/index.php/Main_Page

=== Manual

Manual Sections
http://man.cat-v.org/plan_9_2nd_ed/

Manual pages - Section 8: system administration
http://man.cat-v.org/plan_9_2nd_ed/8/

=== toobnix.org
----
games/fireworks
"Windowing system is 8 1/2 which is closer to UNIX mux"

Plan9 2nd Edition
https://toobnix.org/w/qwV29JnoE9HCNmBEZutRn4
----

</file>

===== Disk1.img =====

^disk1 (rename to disk1.img) is a boot-able diskette that is used to configure plan9.ini.^^
|''C:\plan9\plan9.ini''|''/dev/hd1''|
|''D:\plan9\plan9.ini''|''/dev/hd2''|

  * The default settings are suitable for educational and informational purposes.

^Plan 9 Second Edition screen for: Disk1^
|"System Instillation & Configuration"|

|Plan 9 is already installed on the filesystem you selected in ''\plan9''|

  - Remove the instillation
  - Reconfigure the system
  - File System Installation

**Select 2: "Reconfigure the system"**
|You must enter information about all devices every time you use this menu to configure a device. This is not an editor; it makes a new ''PLAN9.INI'' file each time||
|PLAN9.INI(8) ((//You must now configure the devices. Look at plan9.ini(8) in the manual to help understand the choices//))|http://man.cat-v.org/plan_9_2nd_ed/8/plan9.ini|

  - VGA setup
  - Mouse type
  - Ethernet card
  - ATA (IDE) controller
  - SCSI controller
  - SoundBlaster
  - SoundBlaster CD-ROM
  - File system console
  - Save configuration

^1. VGA setup^
|640x480x1|
|640x480x8|
|800x600x1|
|800x600x8|
|1024x768x1|
|1024x768x8|
|1280x768x8|
|1376x1024x8|
^Continue the VGA setup^
|vga - Basic monitor or laptop LCD|
|multisync65 - Video bandwith up to 65MHz|
|multisync75 - Video bandwith up to 75MHz|
|multisync135 - Video bandwith up to 135MHz|
^2. Mouse type^
|COM1|
|COM2|
|PS2|
^3. Ethernet card^
|None|
|NE2000 - this card comes with Gateway & TI laptops|
|NE4100 - The National/IBM PCMCIA ethernet|
|WD8003 - includes SMC Elites & WD8013-based cards|
|3C509 - the 3COM ISA/EISA/PCI 10Mbps card|
|3C589 - the 3COM PCMCIA card|
^4. ATA (IDE) controller^
|None|
|secondary - Port 0x170|
|teritary - Port 0x1E8|
|quarternary - Port 0x168|
^5. SCSI controller^
|None|
|aha1542 - Adaptec 154x[BC]|
|bus745 - Buslogic 7[45]7[SD]|
|ultra14f - Ultrastor [13]4f|
|bus4201 - Buslogic 7[45]7[SD] in 32-bit mode|
^6. SoundBlaster^
|None|
|Port 0x220|
|Port 0x240|
|Port 0x260|
|Port 0x280|
^7. SoundBlaster CD-ROM^
|None|
|panasonic|
|matsushita|
|mitsumi|
|ATAPI (IDE)|
^8. File system console^
|None|
|CGA|
|COM1|
|COM2|
^9. Save configuration^
|Redo|
|Save|

  * Save or redo

|**//System Instillation & Configuration//**|

| mouseport=ps2  ||
| monitor=vga  ||
| vgasize=800x600x1  ||
| ata1=irq=15  ||
| auido0=type=sb16 port=0x220 irq=7 dma=5  ||
| console=cga  ||
| bootfile=hd!1!/plan9/9dos  ||
| rootdir=/plan9  ||
| bootdisk=#H/hd1disk:63  ||
| |Redo  |
| |**Save**  |

<file config Another "Save Redo" configuration menu snippet>
mouseport=ps2
monitor=vga
vgasize=640x480x1
console=cga
bootfile=hd!1!/plan9/9dos
rootdir=/plan9
bootdisk=#H/hd1disk:63
</file>

|Pick which configuration will boot by default. This can be overridden by supplying an argument to ''\PLAN9\B''.|
^Menu^
|File System Installation|
|An active Plan 9 System|

|Choose the boot partition to mark as the active system.|
^Menu^
|''/dev/hd1'' ((//Create notes for further review of the menu selection//.))|
|''/dev/hd2'' ((//Create notes for further review of the menu selection//.))|

^Press the ''Esc'' key to see what happens.^
|Reconfiguration complete. Remove the boot floppy and press any key to reboot, allowing the new configuration to come into effect.|
|When you return to DOS, restart Plan 9 by typing ''PLAN9\B'' at the DOS prompt.|

==== Disk1 re-config note ====

  - VGA setup
    * 640x480x1
    * vga - Basic monitor or laptop LCD
  - Mouse type
    * PS2
  - Ethernet card
    * None
  - ATA (IDE) controller
    * None
  - SCSI controller
    * None
  - SoundBlaster
    * None
  - SoundBlaster CD-ROM
    * None
  - File system console
    * CGA
  - Save configuration
    * Save

===== \PLAN9\B =====

  * //b.com ((//It is safer not to install the Extended Memory Manager before running b.com//.)) - PC bootstrap program//

^Remove Disk1 then reboot.^^
|''C:\PLAN9\B''|''D:\PLAN9\B''|

|:!: Run FreeDOS 1.3  in //Safe Mode// (press #3, if not press #4).|
|//''3 - Load FreeDOS low with some drivers (Safe Mode)''//|
|//''4 - Load FreeDOS without drivers (Emergency Mode)''// ((//The FreeDOS ''EDIT.EXE'' cursor is missing//; ''C:\PLAN9\B.COM'' works.)) ((//Try FreeDOS text editors ''C:\APPS\EMACS\EMACS.EXE'' or ''VIM.EXE''.//))|

^Plan 9 Second Edition screen for: \PLAN9\B^
|//File System Installation//|

^File System Installation^
|1. Install 3 Diskette System to local drive ((//Create notes for further review of the demo install//.))|
|2. Install CD-ROM to local drive ((//Create notes for further review of the CD-ROM install//.)) ((//You must now configure the devices. Look at plan9.ini(8) in the manual to help understand the choices//))|
|3a.Make a PC file server boot disk ((//Not reviewed in this tutorial//.))|
|3b.Install CD-ROM to network file server ((//Not reviewed in this tutorial//.))|
|4. Make this PC a CPU and Authentication server ((//Not reviewed in this tutorial//.))|

  * Sufficient disc space

|//File System Installation//||
|1. Install 3 Diskette System to local drive||
|**''2. Install CD-ROM to local drive''**||
|''Select an ATAPI drive to load the distribution from:''||
| |**''#H/atapi2disk''**|

  * Insufficient disc space

|//File System Installation//||
|1. Install 3 Diskette System to local drive||
|**''2. Install CD-ROM to local drive''**||
|3a.Make a PC file server boot disk||
| |**''There is insufficient disc space after the DOS partitions to install the system. You need to free 64718336 bytes. Press almost any key to continue...''**|

|B.COM(8) ((//It is safer not to install the Extended Memory Manager before running b.com//.))|http://man.cat-v.org/plan_9_2nd_ed/8/b.com|

==== CD-ROM ====

|Load FreeDOS in //Safe Mode// to view the CD-ROM (//plan9-2e.iso//) at the ''E:\>''. While at the ''C:\>'' type ''E:'' then press the Return key.|

<code>
  Volume in drive E is PLAN 9 2ND
  
  Directory of E:\
</code>

==== System console ====

<file config failure, with console snippets>
[]
init: starting /bin/rc
controller not in /lib/vgadb
[]
/bin/dosserv 19: serving #s/dos
init: rc exit status: rc 8:false

init: starting /bin/rc
term%
</file>

==== How to halt or shutdown ====

Halt or shutdown the system.

^Commands^
|''disk/kfscmd sync''|
|''disk/kfscmd halt''|

  * Demo install

<code>
 term%
 term% cd /
 term% lc readme
 readme
 term% grep halt readme
 To halt the system cleanly, type: disk/kfscmd halt
 term% disk/kfscmd halt
 kfs: file system halted
</code>

  * CD-ROM install

<code>
 term% man kfscmd|grep halt
           halt      write all changed blocks and stop the file system.
 term% 
</code>

|KFSCMD(8)|http://man.cat-v.org/plan_9_2nd_ed/8/kfscmd|

==== D:\> ====

|x|CD-ROM Install|

  * Postpone the //Demo// install if completing the //CD-ROM// install.
  * The //user// is **''tor''** until //user// files are added to the //CD-ROM// installed files.
    * A note about ''/usr/tor'' is located in the [[http://doc.cat-v.org/plan_9/2nd_edition/install|2. Install CD-ROM to local drive]] section (external link).
  * The [[http://doc.cat-v.org/plan_9/2nd_edition/install|Setting up a stand-alone machine]] section suggests that //you should create a user name for yourself// (external link).

|AUTH(8)|http://man.cat-v.org/plan_9_2nd_ed/8/auth|
|NEWUSER(8)|http://man.cat-v.org/plan_9_2nd_ed/8/newuser|
|ways to install|http://doc.cat-v.org/plan_9/2nd_edition/install|

<code>
  D:\PLAN9>more plan9.ini
  mouseport=ps2
  monitor=vga
  vgasize=800x600x1
  ata1=irq=15
  auido0=type=sb16 port=0x220 irq=7 dma=5
  console=cga
  
  bootfile=h!1
  D:\PLAN9>
</code>

==== CD install user login ====

**From B.COM**:

^ File Machine View Input Devices Help ^^
| 5554 free pages, 22216K bytes, swap 108616K, highwater 1108k, headroom 1384K ||
| CPU is a 128 MHz unknown (cpuid: ax 306c3 dx 178bfbbf) ||
| root is from (local, 9600, 19200, il)[local!#H/hd1fs]: | ⇐ Press the Enter key.|

^ File Machine View Input Devices Help ^^
| 5554 free pages, 22216K bytes, swap 108616K, highwater 1108k, headroom 1384K ||
| CPU is a 128 MHz unknown (cpuid: ax 306c3 dx 178bfbbf) ||
| root is from (local, 9600, 19200, il)[local!#H/hd1fs]: ||
| user[none]: USER | ⇐ Type the USER ((The //user// is **''tor''** until //user// files are added to the //CD-ROM// installed files.)) name, then press the Enter key. |
| password: | ⇐ Press the Enter key.|

==== D:\>plan9\b ====

**From FreeDOS**:

<code>
  D:\>
  D:\>plan9\b
</code>

**From B.COM**:

<code>
  root is from (local, 9600, 19200, il)[local!#H/hd1fs]:
  user[none]: tor
  password:
</code>

**From 8½ rc**:

<code>
  Welcome to Plan9.
  This is rc.
  term%
</code>

==== file transfer to C:\ ====

Create the FreeDOS directory C:\FD9C

<code>
  term% cd /n/c:
  term% mkdir fd9c
  term% cd fd9c
  term% pwd
  /n/c:fd9c
  term%
</code>

<code>
  term% lc -l /bin/games >/n/c:fd9c/bingames.txt
  term% cd /n/c:/fd9c
  term% lc -l
  --rw-rw-rw- M 8 bill trog 699 Dec 15 05:52 bingames.txt
  term% cat bingames.txt
  --rwxrwxr-x M 3 sys sys  70817 Apr  5  1995 4s
  --rwxrwxr-x M 3 sys sys  73424 Apr  5  1995 5s
  --rwxrwxr-x M 3 sys sys  30113 Apr  5  1995 ana
  --rwxrwxr-x M 3 sys sys  66994 Apr  5  1995 catclock
  --rwxrwxr-x M 3 sys sys  52998 Apr  5  1995 clock
  --rwxrwxr-x M 3 sys sys  82700 Apr  5  1995 festoon
  --rwxrwxr-x M 3 sys sys  43496 Apr  5  1995 fireworks
  --rwxrwxr-x M 3 sys sys 224453 Apr  5  1995 fsim
  --rwxrwxr-x M 3 sys sys  47330 Apr  5  1995 life
  --rwxrwxr-x M 3 sys sys  61145 Apr  5  1995 mandel
  --rwxrwxr-x M 3 sys sys 123862 Apr  5  1995 plumb
  --rwxrwxr-x M 3 sys sys  98862 Apr  5  1995 road
  --rwxrwxr-x M 3 sys sys  61740 Apr  5  1995 smiley
  --rwxrwxr-x M 3 sys sys  78238 Apr  5  1995 swar
  term% pwd
  /n/c:/fd9c
  term%
</code>

==== create a new user ====

**From 8½ rc**:

  * Create user ''none'' (for the CD-ROM install).

<code>
  term% pwd
  /usr/tor
  term% lc ..
  tor
  term% /sys/lib/kfsuser none
  add user ’2:none:none:
  ’term% 
</code>

  * //Cause kfs to reread the ''/adm/users'' file//.

<code>
  term% disk/kfscmd user
  term% pwd
  /usr/tor
  term% lc ..
  none tor
</code>

  * Login as the new user and copy the mentioned files from ''/usr/tor''.
  * //Even if you're planning to be the only person to use the machine, you should create a user name for yourself//.
  * //Don't use [user] ''none'', which has special meaning in Plan 9//. 

|''/usr/tor/lib/first.window''|
|''/usr/tor/lib/profile''|
|''/usr/tor/bin/rc/8½start''|

  * //The sequence for entering 8 1/2 on an IBM keyboard is// ''8-ALT-1-2''.
  * For educational and informational purposes only. [[playground:plan_9_second_edition#disk1img|Networking]] is not [[playground:plan_9_second_edition#disk1img|supported]].

==== /bin ====

^art, art2pic - edit line-art^
|ART(1)|http://man.cat-v.org/plan_9_2nd_ed/1/art|

^tweak - edit bitmap files, subfont files, face files, etc.^
|TWEAK(1)|http://man.cat-v.org/plan_9_2nd_ed/1/tweak|

==== /bin/fb ====

^cpr, cprview - cheesy polygon renderer and viewer^
|CPR(9.1)|http://man.cat-v.org/plan_9_2nd_ed/9/cpr|

^Manual pages - Section 1: Plan 9^
|http://man.cat-v.org/plan_9_2nd_ed/1/|

^The Use of Name Spaces in Plan 9^
|http://doc.cat-v.org/plan_9/2nd_edition/papers/names|
|https://plan9.io/sys/doc/names.pdf|

^Plan 9 Volume 2 - The Documents^
|http://doc.cat-v.org/plan_9/2nd_edition/papers/|

===== ISO image =====

|Plan 9 Foundation|
|https://plan9foundation.org/|

|FreeDOS Wiki|
|http://wiki.freedos.org/wiki/index.php/Main_Page|

===== Manual =====

|Manual Sections|
|http://man.cat-v.org/plan_9_2nd_ed/|

|Manual pages - Section 8: system administration|
|http://man.cat-v.org/plan_9_2nd_ed/8/|

==== toobnix.org ====

|games/fireworks ((//Included the CD-ROM install//.)) [[:playground:plan_9_second_edition#file_transfer_to_c|lc -l /bin/games]]|
|Windowing system is 8½ which is closer to UNIX mux|

|Plan9 2nd Edition|
|https://toobnix.org/w/qwV29JnoE9HCNmBEZutRn4|