i.MX6Q Linux BSP 4.1.0 for SABRE-SDP rootfs issue

[dmitryv]

Hello!

I built Linux and rootfs with the latest i.MX6Q Linux BSP version 4.1.0 for SABRE-SDP. In order to save rootfs in tar.bz2 format and feed it to MFGTool I'm keeping temporarily directory rootfs.tmp and compressing it by the command:

  tar -jcvf ../rootfs.tar.bz2 *

Here's the a part of ll of compressed directory:

  drwxr-xr-x  2 user user 4096 Sep 27 14:15 bin/

  drwxr-xr-x  2 user user 4096 Sep 27 14:14 dev/

  drwxrwxrwx  7 user user 4096 Sep 27 14:15 etc/

  drwxr-xr-x  3 user user 4096 Sep 27 14:14 home/

  ...

  drwxr-xr-x  2 user user 4096 Sep 27 14:13 sys/

  drwxrwxrwt  3 user user 4096 Sep 27 14:14 tmp/

  drwxr-xr-x  2 user user 4096 Sep 27 14:15 unit_tests/

  ...

In other words, as good as usual.

Being flashed to SD card this image fails to boot because of some permission issues like the following:

  starting pid 1448, tty '': '/etc/rc.d/rcS'

  Mounting /proc and /sys

  mount: permission denied (are you root?)

  mount: permission denied (are you root?)

  /etc/rc.d/init.d/udev: line 11: /proc/sys/kernel/hotplug: No such file or directory

Full boot log is attached.

Pre-built rootfs image that comes with MFGtool is booting normally with the same uImage and u-boot. In both cases /etc/rc.d/rcS and surrounding files are equal including content and permissions. Inittab-s are completely equal as well.

Asking for advice. Does anybody have an idea?

Original Attachment has been moved to: bootlog.txt.zip

[SergioSolis]

Hello Dmitry,

Can you please try this command instead of the one you are using?:

tar cjf ../rootfs.tar.bz2 *

Did you follow the linux user guide ?

Let me know how it goes

[dmitryv]

Hello, %SerchMX%

This command has no significant difference comparing to mine. The only argument missing is 'v' for verbose operation. So the result is exactly the same.

I checked with Linux user guide and I didn't find anything I'm missing. In the past I did LTIB installation for iMX23, 53, 6x many times including setting up for production units. I'm aware about a lot of problems in LTIB but this is the one I'm really stuck. I also made a clean installation of everything: ubuntu 12.10 x32 minimal cd + build tools + ltib + required packages. I get exactly the same problem.

[LeonardoSandova · Accepted solution]

Run the tar command with sudo.

[dmitryv]

Thanks!

Solved by

  tar --owner=root --group=root -jcvf ../rootfs.tar.bz2 *

(the same as sudo)