Comment by fragmede

11 hours ago

I like a good jaunt with IDApro as much as the next RE, but my question is what does ASIF do that Qcow2 doesn't?

My other question is why does it take so long to copy an app out of a dmg and into /Applications. Like, just change some pointers to pointers to data on disk and shit.

> what does ASIF do that Qcow2 doesn't

Mount natively in macOS

> why does it take so long to copy [...] out of a dmg

Compression mostly. DMG contents can optionally be compressed using zlib, lzfse, or slow as molasses bzip2.

Also Gatekeeper.

  • Additionally, while I don't know much about APFS, I don't think it would be beneficial to point the extracted app to blocks that are also part of the dmg file, i.e. some copying has to happen anyway.