I can not reboot my Glaxy s 9000 I was running CynogenMod 10 successfully on my Galaxy S 9000 till I got an update message which I unfortunately applied. It seems it could not get access to my apps installed to sdcard. Unfortunately, I did not make any backup from the old installed OS. Afterwards, I wanted to install a stable ROM following a guide on Internet, that I have to download the CynoGenMod ROM 9.0 on sdcard and then went to Recovery mode and installed it after pressing "Wide data/facatory reset".

It took hours till the Galaxy turned off. When I turned it on again, the Galaxy could reboot but I was not satisfied with it, so I went to ROM Manager and clicked Update to stable ROM and chose CynogenMod 10 again to install. Once applied it,  the Galaxy tried to reboot, showed the CynogenMOD logo and then went to recovery mode. It shows:


  CWM-based Recovery v6...
  
  reboot system now  install zip from sdcard
  
  install zip from sideload
  
  wipe data/factory reset 
   wipe cache..
  
  backup and restore
  
  mount and storege
  
  advanced


Whenever I press "Reboot system now" it tries to reboot, show the CynogenMod logo and goes to Recovery mode again and so on. 

As I said, due to the fact I did not backup the old functioning installed OS I can not make use of the feature shown in the menu "Backup and restore".

Any suggestion how to download and install  CynogenMod in this case?
As you have access to the recovery partition, you should find an update zip that you can flash to it.

Most likely you will have one on your SD card still, if you updated using the CyanogenMod updater.

Using the recovery menu, navigate to Install ZIP from SDCard and select it. You will then have to find the update .zip file. It may be in a folder called cmupdater or something similar. If you have a folder like that, find a zip in that folder and select it to flash. Erase your data, and try and reboot the device.

If that doesn't work, then I am afraid I don't have any more ideas sorry.