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i changed my question on exactly you posted a reply i think
Can you answer above your answer 2? Thx 
Oh thanksi changed my question on exactly you posted a reply i think
Can you answer above your answer 2? Thx
Edit: i saw a second way: at the FAQ: My HTC Desire HOW TO: Install A Custom ROM On Your HTC Desire
Can i do that way 2? i think thats more easy for me.
Wipe all user data
wipe only /data
wipe only /sd-ext
wipe only /sdcard/.android secure
wipe only /cache
Wipe only Dalvik-cache
wipe only battery stats
wipe only rotate settings
cool - good news
market wise i think you can install different version that might work better for you

I think you should read the root memory FAQ again, because it sounds like there's some confusion here.Now i have another problem. I installed app2sd version but some apps won't go to sd..![]()
I think you should read the root memory FAQ again, because it sounds like there's some confusion here.
When a ROM is said to support apps2sd this means it has a script that will allow you to use an ext partition on your SD card to extend your app storage. However, apps using this appear to be "on phone" - moving to SD is just the same move to SD that unrooted phones have.
If you have an ext partition on your card, use an app like "Quick System Info" to show you how much of it is being used. Moving apps "to phone" should then increase the a2sd storage use. If you don't have an ext partition then you need one for the a2sd to work.
As a final note on this, some ROMs with a2sd move the dalvik cache to sd also, on others this is optional (either via a terminal command or an add-on that has to be flashed). If you are short of space this will definately help, as the dalvik cache is at least several 10s of MB in size.
called link2sd