I have Samsung Galaxy S (GT-I9000) and I've installed Cyanogenmod 10 M2. I can reboot into recovery from Cyanogenmod (Hold Power button, select Reboot and Recovery). However, I cannot boot directly to recovery holding Volume up + Power or Volume up + Home + Power when the phone is powered down.
Do I need to do something to the phone hardware to get some button combination to boot to recovery mode? As far as I know, the button combination I've tried is the correct one for this device. I can boot to download mode with Volume down + Power.
The recovery is the one installed along the official galaxysmtd Cyanogenmod 10 M2 ("CWM-based Recovery v220.127.116.11").
I would want to fix the issue because now I'm afraid to flash ROM updates because getting into recovery in case of boot loop is much harder if I cannot get the normal key combo to work.