I have applied the root method of the i9195 to my i9190 and the root suceeded. use the same files and the same recovery but apply the su application using recovery instead downloading it from the market.
My i9190 now is rooted and works perfectly.
after you install the kernel and recovery and the su app you might get an annoying message saying : Detection Information - The device has detected an application attempting unpermitted actions. To protect your device, it is recommended you reboot"
to stop this message from appearing do this :
1. Use File Manager with root explorer instead and mount SYSTEM as WRITABLE.
2. Go to: /data/data/ look for com.sec.knox.seandroid and rename it to 000.knox.seandroid or whathever you wish.. Same thing applies to com.sec.knox.store
3. Go to: /system/app/ and DELETE: KNOXAgent.apk, KNOXAgent.odex, KNOXStore.apk, KNOXStore.odex