Problem installing new Lion update for Java

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Level 1

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Problem installing new Lion update for Java

When I launch JavaForOSX.dmg, it says: "There maybe a problem with this disk image. Are you sure you want to open it? Opening this disk image may make your computer less secure or cause problems." I have downloaded the lastest Java update for Lion 4 times and I always get this message! I have never received a similar message in the past. I downloaded the Snow Leopard file and sucessfully updated my wife's computer with no problems. Is the Apple file bad, or am I doing something wrong.

PowerBook G4 (Gigabit Ethernet), Mac OS X (10.7.3)

Posted on Apr 5, 2012 12:36 PM

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Answer 1

Best reply

Alberto Ravasio

Level 5

4,279 points

Apr 6, 2012 3:26 AM in response to ernestc6

You are not doing anything wrong.

I got the same warning message with the Lion DMG update downloaded from here

http://support.apple.com/kb/DL1515

If you are in a hurry to install the Java update you can do so via the standard Software Update.

I succeeded in updating Java on a Snow Leopard machine without any warning message with the corresponding DMG

http://support.apple.com/kb/DL1516

I'm holding the update trying to understand the problem.

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Answer 2

ernestc6 Author

Level 1

0 points

Apr 6, 2012 11:41 AM in response to ernestc6

As of the morning of April 6, 2012; Apple's "Software Update" first listed the new Lion Java update. I was successfully able to install the update via that method.

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Answer 3

rakerman

Level 1

17 points

Apr 7, 2012 6:16 AM in response to ernestc6

I'm running Mac OS X 10.7.3 on a Mac mini (2.5 GHz Intel Core i5).

Software Update does not offer me Java for OS X Lion 2012-002

Preferences->Installed Software does not show any Java updates installed.

When I download from http://support.apple.com/kb/DL1515 instead of a 66.9MB file I get a 63.8MB file (every time) and it gives me the error "There may be a problem with this disk image. Are you sure you want to open it?" when I open the DMG.

I think Apple needs to provide a new disk image for this patch.

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Answer 4

Apr 7, 2012 1:42 PM in response to ernestc6

Same issue here. The DMG is broken, or it's being mangled by the download process. (I'm using Safari 5.1.5 (7534.55.3) on OS X 10.7.3 for the download.)

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Answer 5

Apr 10, 2012 1:11 PM in response to ernestc6

The problem stems from "minor header corruption" in the dmg during verification (fsck) of the dmg. Using software update is probably the safer route at this point until Apple corrects the DMG. The SHA1 fingerprints match what Apple has posted, so if you feel "ok" with using the downloaded DMG versus software update, then go ahead and run hdiutil attach -noverify <path-to-javaforosx.dmg> to bypass the warning, or bypass the warning in Finder when you open the .dmg file.

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