I just had this problem, I used a new SD card and it worked.

On Tue, Jul 17, 2012 at 5:26 PM, LP/李 <lizhao@lp-d.co.jp> wrote:
Dear all:
 
Forgiving my interruption please. I really have a difficult problem.
 
The following is the details of my problem.
Can anybody help kindly?
Your advise is highly appreciated.
 
++++++++++++++++++++++++++++++++++++++++++++++++
Type of Gumstix:        GS3703A R3576
Version of kernel:       2.6.39
 
The Gumstix boots from Micro-SD. Sometimes, the Gumstix starts successfully.
 Sometimes the Gumstix fails to start. And in this case,  the following error message is displayed.
In addition, in both case the setting is exactlly same.
 
-----------------------------------------
.......................................
twl_rtc twl_rtc: setting system clock to 2000-01-01 00:00:10 UTC (946684810)
Waiting for root device /dev/mmcblk0p2...
mmc0: host does not support reading read-only switch. assuming write-enable.
mmc0: new high speed SDHC card at address b368
mmcblk0: mmc0:b368 USD   7.46 GiB
mmcblk0: detected capacity change from 0 to 8018460672
 mmcblk0: unknown partition table
usb 2-2: new high speed USB device number 2 using ehci-omap
VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2)
Please append a correct "root=" boot option; here are the available partitions:
1f00          524288 mtdblock0  (driver?)
b300         7830528 mmcblk0
 driver: mmcblk
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,2)
--------------------------------------------------------
 
 
 
 
 
======            ======                  ======            ======
Mail: lizhao@lp-d.co.jp    HP: http://www.lp-d.co.jp
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