Hi andria, you can't mount ext4 on top of a mtd device. It requires to have a block device mtd is a flash devices. Becuase ext4 don't know about wearleaving and other flash specefic things you can not use it directly on top of a flash device.
cheers Kolja On Mon, May 9, 2011 at 2:14 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
