On Sat, Sep 25, 2010 at 3:35 AM, Chen Dai <[email protected]> wrote: > Hi, > I try to apply the devkit8000 patch got form 2.6.35-devel on 2.6-stable. > But the kernel stop booting at mount root fs, it seems that the > kernel unable to mount root on mmc on devkit8000. >> >> 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) >> >> ........... >> >> .......... > > I noticed that there is a similar bug in 2.6.35-devel Bug > #607906 https://bugs.launchpad.net/ubuntu/+source/linux-ti-omap/+bug/607906 > But the bug status is fix released. So, is the patch bring the bug back?
That bug came out of hiding after a proper change in the omap mmc layer in 2.6.35.. It turned out that we had been using the wrong gpio_wp lines on Cx and xM beagles for long time. It's now fixed hopefully for the 2.6.37 omap merge. But take a look at the devkit8000 schematic.. is this the correct pin mmc write protect pin? http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=arch/arm/mach-omap2/board-devkit8000.c;h=a07086d6a0b26b6cb7d7fbe7d810ea330bcdae28;hb=HEAD#l109 > Or it is the devkit8000 u-boot problem? Because I use the u-boot.bin > from http://ftp.linuxfoundation.org/pub/meego/MEEGO_GENIVI_BEAGLE_DEMO.img.xz from http://wiki.meego.com/ARM/Meego_on_the_Beagle, > the kernel can boot successfully and I can login to the system.Only the LCD > was black, didn't light on. > How to resolve this problem? Does anybody have some ideas? > Thanks in advance, > Chen > > > _______________________________________________ > MeeGo-dev mailing list > [email protected] > http://lists.meego.com/listinfo/meego-dev > > -- Robert Nelson http://www.rcn-ee.com/ _______________________________________________ MeeGo-dev mailing list [email protected] http://lists.meego.com/listinfo/meego-dev
