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67G6 Petalinux Problems

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Common Problems with Petalinux on the 67G6

67G6 Problems

Problem: Image.ub was flashed, but isn’t booting (stuck in uboot)
Solution: This occurs due to old configuration in uboot. The kernel was being loaded from an old location. Enviorment variable “kernel_offset” must be updated to the proper location. Here is the error messaged that uboot gives you, as well as the fix shown:

67G6 Petalinux Problems image1

Problem: Petalinux is booting, but mbcore listeners are not responding
Solution: This occurs if the eeprom hasn’t been formatted. Please run the eeprom utility to generate the board’s eeprom. This program is located at M:\Maximillion\ClientApps\Max_EEPROMScriptBuilder\FetchAndRunMaxEEPROMScriptBuilder

After the eeprom data is loaded on the board, platformopstartup will run allowing listeners to run as well.

Problem: Upgrading the board using MaxDownloader completes on everything except the IMG partition, causing no load on boot (stays in uboot)
Solution: This is due to a size change in new revisions of petalinux. To resolve this, there are three options:
Option 1) JTAG the latest version of petalinux onto the board directly. This can be located at M:\Maximillion\MaxFileStore\G6\67G6. Select the highest number version (eg, v21 at time of writing) and run the flash_uboot_us.bat file. This will update to the new partition scheme which will remedy the problem for future upgrades

Option 2) Using TeraTerm (this does not work with putty), initiate a ymodem load of latest version of latest image.ub. The instructions are as follows:

  • From the uboot prompt, type “loady” and hit enter
    From teraTerm’s menu, go to File>Transfer>YMODEM>Send…​

  • Navigate to the latest image.ub file, this will be located in M:\Maximillion\MaxFileStore\G6\67G6. You want to navigate to the highest number version folder (eg, v21 at time of writing) and select image.ub

    • YModem Send takes approx. 25 minutes to run.

  • After send is completed, type “bootm” into the uboot prompt. This will boot petalinux.

  • Login to petalinux (“root”/”root” for username/password)

  • Kill mbcore by typing “/etc/init.d/mbcore stop” at the shell prompt

  • Run the configmode listener by typing “RunConfigListenerTCP1OnBrd” and then enter key
    Re-run the MaxDownloader with IMG partition selected. It will work this time and petalinux will work.

Option 3) Using tftpd. The instructions are as follows:

  1. Copy the latest version of image.ub into a directory on your local machine. You can locate this file at in M:\Maximillion\MaxFileStore\G6\67G6 and then by selecting the highest number version folder (eg, v21 at the time of writing).

  2. Point the “Current directory” of TFTPd64 to the location of where you copied image.ub

  3. From uboot, type “setenv ipaddr 192.168.1.16”. Hit enter

  4. Again from uboot, type “setenv serverip x.x.x.x” where x.x.x.x is your local interface connected to the 67g6. Hit enter

  5. From uboot, type “tftpboot image.ub”. Hit enter.

  6. After it finishes loading, type “bootm” to run petalinux

  7. Login to petalinux (“root”/”root” for username/password)

  8. Kill mbcore by typing “/etc/init.d/mbcore stop” at the shell prompt

  9. Run the configmode listener by typing “RunConfigListenerTCP1OnBrd” and then enter key
    Re-run the MaxDownloader with IMG partition selected. It will work this time and petalinux will work.

Notes: tftp needs to be unblocked in the windows firewall in order to work properly.

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