Cannot boot from expanded microSD and I don't know where to look for logs

Hello,
I just got my bbb and I started playing with it. So I have written newest stable debian on microSD and I was able to boot it from the card but then I used grow partition script to expand partition and now it has 30GB partition however I am not able to boot from it. When I try USR LEDs blink for a fraction of a second and USR2 was left turned on. The funny thing is, it has same behavior even if I don’t hold USER/BOOT button so it won’t boot even if the card is present.

So where are there any logs for unsuccessful boot? If so, where can I find them?
Am I unable to use 30GB as a root partition or something?

On Wed, 30 Dec 2015 12:04:07 -0800 (PST),
goranp@gmail.com declaimed the following:

Hello,
I just got my bbb and I started playing with it. So I have written newest
stable debian on microSD and I was able to boot it from the card but then I
used grow partition script to expand partition and now it has 30GB
partition however I am not able to boot from it. When I try USR LEDs blink
for a fraction of a second and USR2 was left turned on. The funny thing is,
it has same behavior even if I don't hold USER/BOOT button so it won't boot
even if the card is present.

So where are there any logs for unsuccessful boot? If so, where can I find
them?
Am I unable to use 30GB as a root partition or something?

  Well... was that a 32GB SD card? Just curious -- defining a 30GB
partition on a 16GB SD card probably results in undefined behavior.

  Does the original OS boot if you remove the SD card?

1.) logs are at /var/logs/
2.) look in the file named syslog for the latest boot information. Other log files may have specialized information.
3.) I usually take a card that has had the 4G image installed, that has been tested for proper booting, then expand the partition by plugging the card into another LINUX computer, and using gparted to expand the partition to the desired size, including the maximum for the card.
4.) Expanding to 30GB on a 32 GB card should not be a problem.
5.) Cheap cards can cause problems. Use a quality card.

— Graham

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