very new to embedded development have a ?

by chris ayers » Sun, 23 May 2010 03:32:03 GMT

Sponsored Links
 i am working with a devkit8000 and trying to build android eclair 0x4
as well as kernel with usb/wlan support. I built the kernel with arm-
eabi-4.4.0, got my uImage
then built the android eclair fs copyed the uImage and system image
to sd card renamed them android.ubi and 0xdroid.bin and copyed over
the uimage instaler.
it loads the kernel but hangs at the file system
here is what terminal has to say

Waiting for root device /dev/mmcblk0p2...
mmc0: new high speed SD card at address 0001
mmcblk0: mmc0:0001 APPSD 481 MiB
 mmcblk0: p1 p2
List of all partitions:
1f00             512 mtdblock0 (driver?)
1f01            1920 mtdblock1 (driver?)
1f02             128 mtdblock2 (driver?)
1f03            4096 mtdblock3 (driver?)
1f04          255488 mtdblock4 (driver?)
b300          492544 mmcblk0 driver: mmcblk
  b301          160618 mmcblk0p1
  b302          329332 mmcblk0p2
No filesystem could mount root, tried:  ext3 ext2 vfat
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-

what do i need to do to fix this?
i think i may have missed something in make menuconfig
(I search all night and could not come up with a solution for my
i am able to install a prebuilt kernel and android fs
but not a custom built one
thanks again for any and all the help


Other Threads

1. problem in getting duration of video from VideoView class api names getduration

Hi everyone,
I was developing an online streaming application using RTSP server.
In my application I need to know the duration of the video file, for
this I was using the getDuration() api of VideoView.
But in the result of  getDuration() I am getting the duration as zero,
even though the video file is present on server.
Can anyone help me out what is the problem. Any suggestion or
alternatives are welcome.

The code snippet is:
Uri videoUrl = Uri.parse(uriPath);

Warm Regards,
Nayan Jain


2. Outlook mail

Is anybody else having problems with their Outlook mail after the
update to the Droid?  I get the notification and then I clear it by
viewing the email.  I'll close it and then another notification will
pop-up for new mail and I'll go to it but nothing is there.  So
basically I'm clearing the new email twice.  Any suggestions?


3. Parcelable not working

4. How to enter PIN code programatically

5. SPP Bluetooth and interrupting a blocking read operation

6. GMail Mailbox Selection Screen

7. Contacts thumbnail image location?