CWM Recovery Problem

[YPA]

I just got a GS2 and I've rooted the phone.

I downloaded Rom Manager and install the latest recovery.

As I want to make a backup first before doing anything else I went into recovery and I got this:
-- Installing package...
Finding update package...
Verifying update package...
E:failed to verify whole-file signature
E:signature verification failed
Installation aborted.

Can anyone help me out here?

 

[zms123]

I read in a few places that it's better you don't use ROM manager. Just use cvm for backing up your phone.

 

[ironass]

ROM Manager is well known for not playing nicely with the SGSII.

Use CWM instead.

Hope this helps.

 

[YPA]

How do I install CWM without Rom Manager?

 

[Hawker]

CMW (or CWM Recovery to give it its full name) comes when you root your device.
You may also get a different version of it if you flash different kernels

To go into CWM Recovery, with your phone off, press VOL-UP+HOME+POWER until you see something appear on the screen, then follow your nose