Difference between revisions of "Getting started with Linux on CM-X300"

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== Preparation steps ==
+
#REDIRECT [[CM-X300: Linux: Getting started]]
{{Note|It is possible to install Linux on CM-X300 using either an NFS share or a USB flash drive. The first method is preferred because NFS setup will ease further Linux evaluation and development.}}
 
* Obtain a PC workstation with serial communication port.
 
* For installation using NFS install TFTP server on host PC. For Windows machines we recommend [http://tftpd32.jounin.net/ TFTPD32] included in this distribution package.
 
* Download the [http://www.compulab.co.il/x300/download/x300-linux.zip Linux distribution package for CM-X300] from CompuLab's website . Unzip the package to a directory on your host workstation.
 
* All image files mentioned below can be found in {{filename|images}} subdirectory
 
* Copy {{filename|debian-image.ubi}} and {{filename|cm-x300-kernel.jffs2}} from [http://www.compulab.co.il/x300/download/x300-linux.zip Linux distribution package for CM-X300] either to a directory exported through NFS or to a USB flash drive.
 
 
 
== Image installation ==
 
* Connect the host PC to the CM-X300 via a null modem cable supplied with the Eval Kit.
 
* Start terminal emulation software on your PC using the COM port to which the null modem is connected. Set baud rate to 38400 bps, 8 bit per frame, 1 stop bit, no parity, no flow control.
 
* Turn on the CM-X300. The U-Boot will start and you will get a command prompt.
 
*: {{Note|If the boot settings of your CM-X300 are different than default, you may need to press and hold ^C while turning the CM-X300 on, in order to get command prompt.}}
 
 
 
=== Installation using NFS ===
 
* Connect CM-X300's ETH0 port to your local Ethernet
 
* Make sure that Linux kernel binary image {{filename|kernel.img}}, ramdisk image {{filename|ramdisk.img}} and bootloader script image {{filename|first_boot.img}} are accessible by the TFTP server.
 
*: - On Windows machine: copy {{filename|kernel.img}}, {{filename|ramdisk.img}} and {{filename|first_boot.img}} to the same folder and point the TFTP server to that folder
 
*: - On Linux machine: copy {{filename|kernel.img}}, {{filename|ramdisk.img}} and {{filename|first_boot.img}} to TFTP sevrver root directory, usually {{filename|/tftpboot}} or {{filename|/tftproot}}.
 
* You can use U-boot {{cmd|dhcp}} command to obtain IP address or manually set {{parameter|ipaddr}} environment variable:
 
<pre>
 
> setenv ipaddr <CM-X300 ip address>
 
</pre>
 
* Set {{parameter|serverip}} environment variable and save the new environment to NAND flash:
 
<pre>
 
> setenv serverip <host ip address>
 
> saveenv
 
</pre>
 
 
 
* Use the following U-boot command to boot Linux on CM-X300:
 
<pre>
 
> tftp 80400000 first_boot.img && autoscr 80400000
 
</pre>
 
* During boot the CM-X300 tries to obtain an IP address using DHCP. If you do not have DHCP server you can set the CM-X300 IP address statically using {{cmd|ifconfig}}:
 
<pre>
 
$ ifconfig eth0 <ip address>
 
</pre>
 
* After the ramdisk image is loaded you will get Linux login prompt. Login as {{parameter|root}} into the system.
 
* Mount the NFS share containing {{filename|cm-x300-kernel.jffs2}} and {{filename|debian-image.ubi}} image:
 
<pre>
 
$ mount <host ip>:/path/to/nfs/share /mnt/net
 
</pre>
 
* Format the NAND flash kernel partition and write the kernel image onto it:
 
<pre>
 
$ flash_eraseall /dev/mtd4
 
$ nandwrite /dev/mtd4 /mnt/net/cm-x300-kernel.jffs2
 
</pre>
 
* Format the NAND flash root filesystem partition and write Debian filesystem image onto it:
 
<pre>
 
$ ubiformat /dev/mtd5 -f /mnt/net/debian-image.ubi
 
</pre>
 
 
 
=== Installation using USB flash drive ===
 
* Make sure that CM-X300's ETH0 port is '''disconnected'''
 
* Make sure that Linux kernel binary image {{filename|kernel.img}}, ramdisk image {{filename|ramdisk.img}}, kernel JFFS2 image {{filename|cm-x300-kernel.jffs2}}, Debian filesystem JFFS2 image {{filename|debian-image.ubi}} and bootloader script image {{filename|first_boot.img}} are present at the root directory of the USB flash drive.
 
* Connect USB flash drive to CM-X300. Use USB2 (host/slave) port.
 
* Use the following U-boot command to boot Linux on CM-X300:
 
<pre>
 
> usb start
 
> fatload usb 0:1 80400000 first_boot.img
 
> autoscr 80400000
 
</pre>
 
* After the ramdisk image is loaded you will get Linux login prompt. Login as {{parameter|root}} into the system.
 
* The USB flash drive will be automatically mounted under {{filename|/media/sda1}}
 
* Format the NAND flash kernel partition and write the kernel image onto it:
 
<pre>
 
$ flash_eraseall /dev/mtd4
 
$ nandwrite /dev/mtd4 /media/sda1/cm-x300-kernel.jffs2
 
</pre>
 
* Format the NAND flash root filesystem partition and write Debian filesystem image onto it:
 
<pre>
 
$ ubiformat /dev/mtd5 -f /media/sda1/debian-image.ubi
 
</pre>
 
 
 
== After Installation ==
 
 
 
<ol>
 
<li> Reset the CM-X300.</li>
 
{{Note|If the boot settings of your CM-X300 are different than default, you may need to press and hold ^C while turning the CM-X300 on, in order to get command prompt.}}
 
<li> To start Linux type:  
 
<pre>> fsload; bootm</pre>
 
</li>
 
<li> If you want Linux to start automatically, type:
 
<pre>
 
> setenv bootdelay <delay in seconds>
 
> setenv bootcmd "fsload; bootm"
 
> saveenv
 
> boot
 
</pre>
 
</li>
 
</ol>
 
 
 
If you want to get back to U-Boot prompt, hold '''Ctrl-C''' during reset.
 
 
 
=== Connection and Logging In ===
 
 
 
Use the following usernames and passwords to login:
 
 
 
Account with administrative privileges:
 
<pre>
 
User: root
 
Password: 111111
 
</pre>
 
Regular user account:
 
<pre>
 
User: user
 
Password: 111111
 
</pre>
 
In addition to these accounts CM-X300 allows anonymous FTP access.
 
 
 
== See also ==
 
 
 
* [[Linux Development for XScale modules]]
 
* [[Linux Kernel for CM-X300]]
 
* [[Debian Linux for CM-X300]]
 
* [[U-Boot for CM-X300]]
 

Latest revision as of 08:02, 23 December 2009