What does a .dmg verify?
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26-04-2021 - |
문제
Whenever I open a .dmg, my computer says that it is Verifying…
for a moment. I'm just curious as to what it is doing at this time. Is it running a checksum, checking if it is the same as the online version, etc.?
해결책
In most cases, your computer is just doing a checksum, to make sure the Apple Disk Image, .dmg
, hasn't been corrupted due to a flakey network connection or hard drive, or from bit-rot, etc. This can let you know about a problem early on, so you don't waste time troubleshooting a bad copy of an app.
Developers also have the ability to codesign .dmg
's (thanks @graham-miln), in which case, this signature will also be verified.
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