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A modularized federated OS based on L4 micro kernel and Plan9 from Bell Labs.

LP49 ////

(Last updated: 2010/06/30)

LP49: Federated software bus based on L4 and Plan9.

Dependable/robust OS using a micro kernel and multi-server organization.: Each server is strongly separated and guarded.
Universal Federation: At present: porting Plan 9 features. with the hope of becoming a study base for future universal fedrations.
Simple, Scalable, Secure component, , ,: Not paperware, but actual software.
As a material for OS learning and OS development of your own.: Practice is very important as theory is.

TAR-file of LP49 source code.

(^_^) LP49-yymmdd.tar.gz file (31MB, 2010/06/30 updated)

Documents (in Japanese)

(^_^) LP49 user manual (PDF) (2009/06/30 updated)

(^_^) LP49 internal structure (PDF) (2009/06/30 updated)

(^_^) LP49 NW program structure (PDF) (2009/06/10 updated)

(^_^) Data structure (PDF) (2008/10)

Useful (hoped) image files

(^_^) LP49 boot-CD image file for Qemu (11MB, 2010/06/30 updated)

(How to use)

       % qemu -cdrom lp49-boot.cd -std-vga
       --- LP49 ---
       LP49[/]: d vga

(^_^) LP49 HDD image file for Qemu (3MB, 2008/05 updated)

(How to use)

       % gunzip lp49.disk.gz
       % qemu -cdrom lp49-boot.cd -hda lp49.disk -boot d -std-vga
          ----- Boot from CD image.
       --- LP49 ---
       LP49[/]: mount -ac /srv/dos /c /dev/sdC0/dos-0
          ---- DOS-file-system on the  Hard disk image is mounted onto /c.
       LP49[/]: cd /c

(^_^) Qemu for Windows-XP including LP49 (25MB, 2009/05/xx )

(How to use on Windows-XP)

    [1] Unzip the qemu-0.9.zip file.
    [2] Click the qemu-0.9.1-windows-LP49 folder.
    [3] Click the LP49 folder.
    [4] Double click lp49-1.bat, then 1st LP49 will start up.
    [5]  LP49[/]: ipsetup
    [6] Double click lp49-2.bat, then 2nd LP49 will start up.
    [7]  LP49[/]: ipsetup 10.0.0.5

This Qemu does not work on WIndows-Vista.
Why ? I don't know the reason.

(^_^) Qemu/Plan9 virtual disk image (103MB, 2009/04 )

(How to use on Linux)

    [1] % gunzip plan9.img.gz
    [2] qemu -hda plan9.img -std-vga
    [3] File system ?  Return 
    [4] User:   glenda 
    [5] Plan9 starts working.

(^_^) TAR file of Plan9 source codes (109MB, 2007)

Supplemental explanation (in Japanese)

(^_^) How to use LP49 versions

LP49 internal structure

Old English documents

(^_^) How to use storage devices

(^_^) How to use NW

Additional information (Not updated)

How to use QEMU virtual HDD image (lp49.disk). (081111)
Two partions are set. One is for DOS file system, and another is for EXT2 file system.
DOS file system includes LP49 commands on bin/ directory.
1. Down load lp49.disk.gz , and gunzip it.
2. Start qemu and LP49. Boot floppy image "lp49-boot-x2.fd" is required.
  # qemu -hda lp49.disk -fda lp49-boot-x2.fd -boot a -std-vga -net nic
3. Bind the virtual HDD (#S) onto /dev.
  LP49[/]: bind -ac #S /dev
4. You can see /dev/sdC0/dos-0.
  LP49[/]: ls /dev/sdC0
  /dev/sdC0/dos-0
  /dev/sdC0/ext2-0
5. Mount this on mount point(e.g. /work) usig DOS file server (srv/dos). LP49[/]: mount -ac /srv/dos /work /dev/sdC0/dos-0
6. You will bin/ on /workĄŁ
  LP49[/]: ls /work
  LP49[/]: ls /work/bin
7. After usage, please do unmount (not umount)ĄŁ
  LP49[/]: unmount /work
Boot floppy image
- On the LP49-yymmdd.tar top directory, you can find lp49-boot.fd (1.44M FD), and lp49-boot-x2.fd (2.88M FD).
- QEMU supports 2.88M FD. please enjoy.
VGA is not yet supported, but study is starting... (080930)
- We are studying to support QEMU -std-vga.
- Current status: premature.
```
* Start qemu with -std-vga option. 
  [HostOS]  qemu -fda lp49-boot-x2.fd -std-vga -net nic 
* Try debug command "d vga" 
  LP49[/]:  d  vga
* Can you see Mandelbrot picture ?
```
- Return-to-command-mode is not yet implemented. After this, command can not be accepted.

Network environment setup on QEMU (080909)

Let's use TUN/TAP of the Linux (Host OS).

    +------------ Host OS -------------------------------+
    |                                                    |
    |  +--Guest OS on QEMU--+    +----- Host OS  -----+  |
    |  |                    |    |                    |  |
    |  |                    |    |                    |  |
    |  |                    |    |                    |  |
    |  |                    |    |                    |  |
    |  +--------+-----------+    +---------+----------+  |
    |           |                          |             |
    |           +--------------------------+             |
    |   eth0 (10.0.0.2)           tun0 (Ex. 10.0.0.1)    |
    +----------------------------------------------------+

Setting on Host OS.

Load the "tun" module.

# ls  -l  /dev/net/tun
# chmod  0660  /dev/net/tun
# chgrp   maruyama  /dev/net/tun
# modprobe  tun

Prepare the executable script file "/etc/qemu-ifup" (Host OS)
```
#!/bin/sh
sudo  /sbin/ifconfig  "$1"  10.0.0.1 
```
Add following line to the "/etc/sudoers" file using visudo command.
```
maruyama    ALL=(ALL)  ALL
```

Start the QEMU:

# sudo qemu -fda /home/maruyama/LP49/lp49-bootfd-x2.fd -net nic -net tap

Input your password

IP/Gateway address setup of LP49 using "ipsetup" command:
```
LP49[/] ipsetup  10.0.0.2 10.0.0.1 
```
Now, you cam try LP49 networking. You can mount Linux files onto LP49 using upfs (explained lator). Firewall may need to open a hole (564/tcp).

U9FSĄ§ Mount the Linux files onto LP49 (080727)

Notice: Authentication is not yet supported.

Let's try to mpunt the file system on Host OS onto LP49.

    +-------------------Linux ----------------------------+
    |                                                     |
    | +----- VMware--------+        Linux-file-tree       |
    | |                    |                              |
    | |           /dev/    |                              |
    | |           /n ------|-------  /aa/                 |  
    | |                    |             bb/              |
    | |                    |                b1            |
    | |    LP49            |                b2            |
    | |    ^^^^            |             cc/              |
    | |                    |                c1            |
    | |                    |             dd/              |
    | +--------------------+                              |
    +-----------------------------------------------------+

Setting of Linux (host OS) side : On host OS, set up u9fs to run under the control of xinetd.

Copy "LP49-yymmdd/src/cmd/unix/u9fs/u9fs" (This is Linux server, not LP49 server) to "/usr/loca/etc"
```
      [Linux]: cp LP49-yymmdd/src/cmd/unix/u9fs/u9fs /usr/local/etc
  
```
Add following line to "/etc/services":
```
     u9fs      564/tcp
  
```

Prepare the following file "/etc/xinetd.d/u9fs":

   service u9fs
   {
           disable         = no
	   socket_type     = stream
	   protocol        = tcp
	   user            = root
	   wait            = no
	   user            = root
	   server          = /usr/local/etc/u9fs
	   server_args     = -Dz -a none -u maruyama /home/
	   groups          = yes
	   flags           = REUSE
   }
  
      Set the firewall to pass 564/tcp.


     
 Restart xinetd.
              /etc/init.d/xinetd  restart

Setting on LP49 side: LP49 uses the program "srv" (/t/bin/srv).

Startup LP49

Setup the IP/Gateway addresses.ĄŁ

      LP49[/]; ipsetup  [IPaddress]  [GWaddress]
      Ex.  ipsetup  10.0.0.2  10.0.0.1

Run the "srv" command.

      LP49[/]; spawn /t/bin/srv tcp!192.168.74.1  u9fs

This creates the file "/srv/u9fs".

Mount the server link onto some directory (e.g. /n).

      LP49[/]; mount /srv/u9fs  /n
      LP49[/]: cd  /n
      LP49[/n]: ls

After working, unmount it.

      LP49[/n]; cd /
      LP49[/]: unmount  /n

Commands in ZIP file (080530)
- Boot floppy image contains zipped command file "b/cmd.zip".
  1. You can fined "cmd.zip file on /t/bin/cmd.zip.
  2. LP49[/]; cd /tmp
  3. LP49[/tmp]: unzip -f /t/bin/cmd.zip
  4. You will find commands on /tmp directory.
  5. LP49[/tmp]: spawn ex2
  6. LP49[/tmp]: cd
  7. LP49[/]: spawn /tmp/ex2
USB 1.1 memory
- USB host controler: "UHCI Version 1.1" is supported. "OHCI, EHCI" is not yet supported.
- If your PC has only USB-2.0 controller, the use USB-1.0 hub.
  
  LP49[/]: bind -a #U dev
  Bind USB-device onto /dev
  LP49[/]: spawn /t/bin/usbd
  
  Start the USB daeman process.
  LP49[/]: spawn /t/bin/usbsfs
  You will find /ums/ctl, /ums/raw, /ums/data.
  LP49[/]: spawn /t/bin/dos2 -f /ums/data:32 usbs
  Start the DOS file server with starting block 32 .
  
  LP49[/]: mount -ac /srv/usbs /work
  USB DOS file system is mounted onto /work.
- .......

( GO TO Japanese page )

LP49 ////

LP49: Federated software bus based on L4 and Plan9.

TAR-file of LP49 source code.

(^_^) LP49-yymmdd.tar.gz file (31MB, 2010/06/30 updated)

Documents (in Japanese)

(^_^) LP49 user manual (PDF) (2009/06/30 updated)

(^_^) LP49 internal structure (PDF) (2009/06/30 updated)

(^_^) LP49 NW program structure (PDF) (2009/06/10 updated)

(^_^) Data structure (PDF) (2008/10)

Useful (hoped) image files

(^_^) LP49 boot-CD image file for Qemu (11MB, 2010/06/30 updated)

(^_^) LP49 HDD image file for Qemu (3MB, 2008/05 updated)

(^_^) Qemu for Windows-XP including LP49 (25MB, 2009/05/xx )

(^_^) Qemu/Plan9 virtual disk image (103MB, 2009/04 )

(^_^) TAR file of Plan9 source codes (109MB, 2007)

Supplemental explanation (in Japanese)

(^_^) How to use LP49 versions

LP49 internal structure

Old English documents

(^_^) How to use storage devices

(^_^) How to use NW

Additional information (Not updated)

Links

L4 micro kernel

Plan 9 from Bell Labs

( GO TO Japanese page )

LP49 __/__/__/__/

LP49: Federated software bus based on L4 and Plan9.

TAR-file of LP49 source code.

(^_^) LP49-yymmdd.tar.gz file (31MB, 2010/06/30 updated)

Documents (in Japanese)

(^_^) LP49 user manual (PDF) (2009/06/30 updated)

(^_^) LP49 internal structure (PDF) (2009/06/30 updated)

(^_^) LP49 NW program structure (PDF) (2009/06/10 updated)

(^_^) Data structure (PDF) (2008/10)

Useful (hoped) image files

(^_^) LP49 boot-CD image file for Qemu (11MB, 2010/06/30 updated)

(^_^) LP49 HDD image file for Qemu (3MB, 2008/05 updated)

(^_^) Qemu for Windows-XP including LP49 (25MB, 2009/05/xx )

(^_^) Qemu/Plan9 virtual disk image (103MB, 2009/04 )

(^_^) TAR file of Plan9 source codes (109MB, 2007)

Supplemental explanation (in Japanese)

(^_^) How to use LP49 versions

LP49 internal structure

Old English documents

(^_^) How to use storage devices

(^_^) How to use NW

Additional information (Not updated)

Links

L4 micro kernel

Plan 9 from Bell Labs

LP49 ////