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Is it really beneficial to disable disk image verification? What does OS X actually verify when it opens a disk image? It does take some time to verify disk ima
by Watabou 14y ago
Is it really beneficial to disable disk image verification? What does OS X actually verify when it opens a disk image? It does take some time to verify disk images and I want to be sure of what I'm actually disabling.
- octopine 14y agoIt's probably calculating a checksum of the file to check for corruption.
- msbarnett 14y agoIt's taking a CRC32 of the contents of the image and comparing it to the expected value stored in the image. I've very occasionally run across corrupted disk images, which is what this catches.
- binarycrusader 14y agoConsidering I've frequently encountered this with botched downloads of disk images from the Apple servers, this seems like something that shouldn't be disabled. And no, it isn't my system, it's Apple's servers; only have the problem with downloads from them.