install mountain lion integrity
how can i verify the integrity of a downloaded install mountain lion dmg
OS X Mountain Lion (10.8.5)
12 replies
I know how to run the openssl command but how can i verify it against the install mountain lion app and where are the sha1 sums to compare it to?
Just find whichever install your interested in
yes but the ML install app its self Im not talking about updates the .dmg to install os x operating system where is the sum for that and what do you check it against? The installESD.dmg the basesystem.dmg or something else.
Who knows what the sha1 has of it is?
If you download it from Apple, it will run just fine if it's not damaged.
If you have a warez copy of the Mountain Lion installer and want to try and verify it's unchanged and not altered with spyware, tough. Buy it from the Mac App Store.
It is a download from the app store but apple should host a checksum some where for it, like they do with the updates.
You need to download the ML installer from the appstore to verify:
In terminal:
shasum /path/to/package/
shasum /Applications/Install\ OS\ X\ Mountain\ Lion.app/Contents/SharedSupport/InstallESD.dmg
or
shasum /Applications/Install\ OS\ X\ Mountain\ Lion.app/Contents/SharedSupport/OSInstall.mpkg
And check it against what checksum?
"The sums are computed as described in FIPS PUB 180-2."
Compare against the openSSL computed value if it makes you feel better:
shasum /Applications/Install\ OS\ X\ Mountain\ Lion.app/Contents/SharedSupport/InstallESD.dmg
=[checksum amount]
openssl sha1 /Applications/Install\ OS\ X\ Mountain\ Lion.app/Contents/SharedSupport/InstallESD.dmg
=[same value]
#validated.
13uz wrote:
I know how to run the openssl command but how can i verify it against the install mountain lion app and where are the sha1 sums to compare it to?
For the App Store downloads, it is done automatically, which is probably why it is not posted anywhere.
what are you on about you plant pot FIPS PUB 180-2 is just a standard for the algorithm
Read the man pages. Read the support article already linked twice. Read what everyone else has said. Contact Apple directly if need be. I am out of suggestions. Adios.
install mountain lion integrity