Also, in Froyo, it might not be a good idea to enable ext4. Because the framework code may not be handling the buffering issue for ext4, as being done in GB. http://android-developers.blogspot.com/2010/12/saving-data-safely.html
<http://android-developers.blogspot.com/2010/12/saving-data-safely.html> Thanks, Arindam On Tue, May 10, 2011 at 6:56 AM, Arindam Roy <rarin...@gmail.com> wrote: > Hello Andria, > I am assuming you built the driver as part of kernel aend did not make it a > module. > Also, how are ensuring while building the system.img, and ramdisk.img, > proper ext4 filesystems are being built. > Can you share the command line, or make file changes? > Thanks, > Arindam > > > On Mon, May 9, 2011 at 5:44 PM, andria <andri...@gmail.com> wrote: > >> Hi, >> >> I'm trying to moun /data with ext4 instead of yaffs2 on a froyo >> emulator. >> >> 1- I enabled the support of ext3 and ext4 in the .config and built a >> new kernel >> 2- I launched the emulator with the new zImage to make sure that there >> was no error. No error >> 3- I replaced yaffs2 with ext4 in the init.rc inside froyo source and >> built new system.img and ramdisk.img >> mount yaffs2 mtd@userdata /data nosuid nodev --> mount ext4 >> mtd@userdata /data nosuid nodev >> 4- I launched the emulator and I got errors. Errors occur: services >> always die and there is problem with the framework. Here is a sample >> of the error message: >> >> D/AudioHardwareInterface( 152): setMode(NORMAL) >> I/CameraService( 152): CameraService started: pid=152 >> I/AudioFlinger( 152): AudioFlinger's thread 0xb3f0 ready to run >> E/keystore( 158): chdir: /data/misc/keystore: No such file or >> directory >> D/AndroidRuntime( 157): >> D/AndroidRuntime( 157): >>>>>>>>>>>>>> AndroidRuntime START >> <<<<<<<<<<<<<< >> D/AndroidRuntime( 157): CheckJNI is ON >> E/dalvikvm( 157): Can't open dex cache '/data/dalvik-cache/ >> system(at)framework(at)core.jar(at)classes.dex': No such file or >> directory >> I/dalvikvm( 157): Unable to open or create cache for /system/ >> framework/core.jar (/data/dalvik-cache/ >> system(at)framework(at)core.jar(at)classes.dex) >> D/dalvikvm( 157): Unable to process classpath element '/system/ >> framework/core.jar' >> E/dalvikvm( 157): Can't open dex cache '/data/dalvik-cache/ >> system(at)framework(at)ext.jar(at)classes.dex': No such file or >> directory >> I/dalvikvm( 157): Unable to open or create cache for /system/ >> framework/ext.jar (/data/dalvik-cache/ >> system(at)framework(at)ext.jar(at)classes.dex) >> D/dalvikvm( 157): Unable to process classpath element '/system/ >> framework/ext.jar' >> E/dalvikvm( 157): Can't open dex cache '/data/dalvik-cache/ >> system(at)framework(at)framework.jar(at)classes.dex': No such file or >> directory >> I/dalvikvm( 157): Unable to open or create cache for /system/ >> framework/framework.jar (/data/dalvik-cache/ >> system(at)framework(at)framework.jar(at)classes.dex) >> D/dalvikvm( 157): Unable to process classpath element '/system/ >> framework/framework.jar' >> E/dalvikvm( 157): Can't open dex cache '/data/dalvik-cache/ >> system(at)framework(at)android.policy.jar(at)classes.dex': No such >> file or directory >> I/dalvikvm( 157): Unable to open or create cache for /system/ >> framework/android.policy.jar (/data/dalvik-cache/ >> system(at)framework(at)android.policy.jar(at)classes.dex) >> D/dalvikvm( 157): Unable to process classpath element '/system/ >> framework/android.policy.jar' >> E/dalvikvm( 157): Can't open dex cache '/data/dalvik-cache/ >> system(at)framework(at)services.jar(at)classes.dex': No such file or >> directory >> I/dalvikvm( 157): Unable to open or create cache for /system/ >> framework/services.jar (/data/dalvik-cache/ >> system(at)framework(at)services.jar(at)classes.dex) >> D/dalvikvm( 157): Unable to process classpath element '/system/ >> framework/services.jar' >> E/dalvikvm( 157): ERROR: no valid entries found in bootclasspath '/ >> system/framework/core.jar:/system/framework/ext.jar:/system/framework/ >> framework.jar:/system/framework/android.policy.jar:/system/framework/ >> services.jar' >> W/dalvikvm( 157): JNI_CreateJavaVM failed >> E/AndroidRuntime( 157): JNI_CreateJavaVM failed >> I/ServiceManager( 27): service 'media.audio_flinger' died >> I/ServiceManager( 27): service 'media.player' died >> I/ServiceManager( 27): service 'media.camera' died >> I/ServiceManager( 27): service 'media.audio_policy' died >> I/ ( 159): ServiceManager: 0xacd0 >> D/AudioHardwareInterface( 159): setMode(NORMAL) >> I/CameraService( 159): CameraService started: pid=159 >> I/AudioFlinger( 159): AudioFlinger's thread 0xb3f0 ready to run >> >> Did I miss something to mount succesfully /data with ext4? >> >> -- >> unsubscribe: android-kernel+unsubscr...@googlegroups.com >> website: http://groups.google.com/group/android-kernel > > > -- unsubscribe: android-kernel+unsubscr...@googlegroups.com website: http://groups.google.com/group/android-kernel
