I think this is the correct forum for this.

I've successfully run "sudo dd if=/dev/rdisk0 of=/dev/null conv=noerror" any number of times, but today it ran for waaay too many hours without completing. (Early 2009 White MacBook/OS X 10.5.7 (Build 9J61))

(Note: Artie-s-Computer-4:~ artie$ diskutil list
/dev/disk0
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *232.9 Gi disk0
1: EFI 200.0 Mi disk0s1
2: Apple_HFS HD 24.9 Gi disk0s2
3: Apple_HFS HD2 207.5 Gi disk0s3
Artie-s-Computer-4:~ artie$)

I tried substituting "disk0" for "rdisk0," but with no effect.

Has anybody got a clue what went wrong?

Thanks.

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