Difference between revisions of "Getting started with Linux on CM-X300"
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</pre> | </pre> | ||
* After the ramdisk image is loaded you will get Linux login prompt. Login as {{parameter|root}} into the system. | * 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|debian-image.jffs2}} image: | + | * Mount the NFS share containing {{filename|cm-x300-kernel.jffs2}} and {{filename|debian-image.jffs2}} image: |
<pre> | <pre> | ||
$ mount <host ip>:/path/to/nfs/share /mnt/net | $ mount <host ip>:/path/to/nfs/share /mnt/net | ||
</pre> | </pre> | ||
| − | * Format the NAND flash and write the kernel | + | * Format the NAND flash kernel partition and write the kernel image onto it: |
<pre> | <pre> | ||
$ flash_eraseall /dev/mtd4 | $ 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> | ||
$ flash_eraseall /dev/mtd5 | $ flash_eraseall /dev/mtd5 | ||
| − | $ | + | $ ubiattach /dev/ubi_ctrl -m 5 -O 2048 |
| − | $ | + | $ ubimkvol /dev/ubi0 -m -N <new filesystem name> |
| + | $ ubiupdatevol /dev/ubi0_0 /mnt/net/debian-image.jffs2 | ||
</pre> | </pre> | ||
=== Installation using USB flash drive === | === Installation using USB flash drive === | ||
* Make sure that CM-X300's ETH0 port is '''disconnected''' | * 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}} and bootloader script image {{filename|first_boot.img}} are present at the root directory of the USB flash drive. | + | * 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.jffs2}} 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. | * Connect USB flash drive to CM-X300. Use USB2 (host/slave) port. | ||
* Use the following U-boot command to boot Linux on CM-X300: | * Use the following U-boot command to boot Linux on CM-X300: | ||
| Line 58: | Line 63: | ||
* After the ramdisk image is loaded you will get Linux login prompt. Login as {{parameter|root}} into the system. | * 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}} | * The USB flash drive will be automatically mounted under {{filename|/media/sda1}} | ||
| − | * Format the NAND flash and write the kernel | + | * Format the NAND flash kernel partition and write the kernel image onto it: |
<pre> | <pre> | ||
$ flash_eraseall /dev/mtd4 | $ 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> | ||
$ flash_eraseall /dev/mtd5 | $ flash_eraseall /dev/mtd5 | ||
| − | $ | + | $ ubiattach /dev/ubi_ctrl -m 5 -O 2048 |
| − | $ | + | $ ubimkvol /dev/ubi0 -m -N <new filesystem name> |
| + | $ ubiupdatevol /dev/ubi0_0 /media/sda1/debian-image.jffs2 | ||
</pre> | </pre> | ||
Revision as of 11:14, 24 June 2009
Contents
Preparation steps
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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 TFTPD32 included in this distribution package.
- Download the 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 images subdirectory
- Copy debian-image.jffs2 and cm-x300-kernel.jffs2 from 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.
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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 kernel.img, ramdisk image ramdisk.img and bootloader script image first_boot.img are accessible by the TFTP server.
- - On Windows machine: copy kernel.img, ramdisk.img and first_boot.img to the same folder and point the TFTP server to that folder
- - On Linux machine: copy kernel.img, ramdisk.img and first_boot.img to TFTP sevrver root directory, usually /tftpboot or /tftproot.
- You can use U-boot dhcp command to obtain IP address or manually set ipaddr and serverip environment variables:
> setenv serverip <host ip address> > setenv ipaddr <CM-X300 ip address> > saveenv
- Use the following U-boot command to boot Linux on CM-X300:
> tftp 80400000 first_boot.img && autoscr 80400000
- 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 ifconfig:
$ ifconfig eth0 <ip address>
- After the ramdisk image is loaded you will get Linux login prompt. Login as root into the system.
- Mount the NFS share containing cm-x300-kernel.jffs2 and debian-image.jffs2 image:
$ mount <host ip>:/path/to/nfs/share /mnt/net
- Format the NAND flash kernel partition and write the kernel image onto it:
$ flash_eraseall /dev/mtd4 $ nandwrite /dev/mtd4 /mnt/net/cm-x300-kernel.jffs2
- Format the NAND flash root filesystem partition and write Debian filesystem image onto it:
$ flash_eraseall /dev/mtd5 $ ubiattach /dev/ubi_ctrl -m 5 -O 2048 $ ubimkvol /dev/ubi0 -m -N <new filesystem name> $ ubiupdatevol /dev/ubi0_0 /mnt/net/debian-image.jffs2
Installation using USB flash drive
- Make sure that CM-X300's ETH0 port is disconnected
- Make sure that Linux kernel binary image kernel.img, ramdisk image ramdisk.img, kernel JFFS2 image cm-x300-kernel.jffs2, Debian filesystem JFFS2 image debian-image.jffs2 and bootloader script image 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:
> usb start > fatload usb 0:1 80400000 first_boot.img > autoscr 80400000
- After the ramdisk image is loaded you will get Linux login prompt. Login as root into the system.
- The USB flash drive will be automatically mounted under /media/sda1
- Format the NAND flash kernel partition and write the kernel image onto it:
$ flash_eraseall /dev/mtd4 $ nandwrite /dev/mtd4 /media/sda1/cm-x300-kernel.jffs2
- Format the NAND flash root filesystem partition and write Debian filesystem image onto it:
$ flash_eraseall /dev/mtd5 $ ubiattach /dev/ubi_ctrl -m 5 -O 2048 $ ubimkvol /dev/ubi0 -m -N <new filesystem name> $ ubiupdatevol /dev/ubi0_0 /media/sda1/debian-image.jffs2
After Installation
- Reset the CM-X300.
- To start Linux type:
> fsload; bootm
- If you want Linux to start automatically, type:
> setenv bootdelay <delay in seconds> > setenv bootcmd "fsload; bootm" > saveenv > boot
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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. |
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:
User: root Password: 111111
Regular user account:
User: user Password: 111111
In addition to these accounts CM-X300 allows anonymous FTP access.
