Hi Robert, Amit and all, After updated the u-boot.bin, the kernel can start to boot. But there are still 2 problems.
1. for myself built u-boot.bin The kernel can start to boot, bu it can not mount root fs. I download the u-boot source code(2010.3 2010.6 2010.9.rc2) form ftp://ftp.denx.de/pub/u-boot/ My build step are ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabi- make CROSS_COMPILE=arm-none-linux-gnueabi- mrproper make CROSS_COMPILE=arm-none-linux-gnueabi- devkit8000_config make CROSS_COMPILE=arm-none-linux-gnueabi- All these 3 version u-boot got the same result. The error info on the LCD are : Root-NFS: No NFS server available, giving up. VFS: Unable to mount root fs via NFS, trying floppy. VFS: Cannot open root device "mmcblk0p2" or unknown-block(2,0) Please append a correct "root" boot option;here are the available > partitions: Kernel panic - not syncing: VFS Unable to mount root fs on > unknown-block(2,0) ........... .......... 2. I used the u-boot.bin from http://ftp.linuxfoundation.org/pub/meego/MEEGO_GENIVI_BEAGLE_DEMO.img.xzfrom http://wiki.meego.com/ARM/Meego_on_the_Beagle, the kernel can boot successfully and I can login to the system. But the LCD was black, didn't light on. My bootargs is 'bootargs=console=ttyS2,115200n8 noinitrd root=/dev/mmcblk0p2 rootfstype=ext3 rw nohz=off rootdelay=5 omapdss.def_disp=lcd omapfb.mode=lcd:800x480' Is it an u-boot issue or kernel issue or my sd card issue? Thanks, Chen 2010/9/24 Chen Dai <[email protected]> > > I have add the "earlyprintk", but the result is the same. Is that the devkit u-boot issue? is it too old? > > 2010/9/24 Robert Nelson <[email protected]> >> >> On Thu, Sep 23, 2010 at 2:27 PM, Chen Dai <[email protected]> wrote: >> > it can't boot the kernel, stopped at "Starting kernel ... " >> > >> > ## Booting kernel from Legacy Image at 80300000 ... >> > >> > >> > Image Name: Linux-2.6.35.5-x4.1 >> > Image Type: ARM Linux Kernel Image (uncompressed) >> > Data Size: 4468300 Bytes = 4.3 MB >> > Load Address: 80008000 >> > Entry Point: 80008000 >> > Verifying Checksum ... OK >> > Loading Kernel Image ... OK >> > OK >> > >> > Starting kernel ... >> > >> >> It works on my xM, so might just be a devkit problem.. >> >> Can you add "earlyprintk" to your bootargs, it should dump more to >> your serial port hopefully give us an idea of what's happening.. >> >> > So how can I build the devkit8000 kernel with sgx? I have already checked >> > out devkit8000 source code >> > from git://gitorious.org/devkit8000/linux-omap-devkit8000.git >> >> patches are self contained in the sgx directory.. >> >> Regards, >> >> -- >> Robert Nelson >> http://www.rcn-ee.com/ >
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