Thanks.

According to the log, each time you boot Harmattan, it should start normally as far as ubiboot is concerned:

Jan 2 11:13:42 (none) user.notice root: Loading kernel /boot/Harmattan/boot/zImage_2.6.32.54-openmode_l2fix
Jan 2 11:13:42 (none) user.notice root: kexec_load() successful
Jan 2 11:13:42 (none) user.notice root: Restarting to selected OS

If there was a problem that ubiboot could detect, you would see something else than "kexec_load() successful" in the logfile.
Now, the problem is then something that happens after kexec() which starts the 2nd stage kernel.

Now, I presume your harmattan has to be PR1.3 level, as else you propably could not start the zImage_2.6.32.54-openmode_l2fix kernel at all. (it would require an older PR kernel to match the OS)

So, most propably it is an aegis-related problem in startup. Can you check in your /var/log/syslog (and possibly /var/log/syslog.old) if there is something defilite that occurred when you tried starting harmattan and failed?

One thing that comes to mind, in which way have you entered Open Mode? Unless it is by back-to-back-closedmode-openmode flashing, it can leave your aegis in a state that causes all kinds of funny business, includeing but not limited to boot problems.