exyan Posted July 7, 2011 Share Posted July 7, 2011 Hey, I'm using Mac OS X Lion on an EP35-DS3 with a Western Digital 500gb hard drive. I've noticed that in Snow Leopard and in Lion, whenever a larger .dmg file touches the system of my active partition, it tend to get messed up. So, the practice that I was having: 1. In Snow Leopard, when trying to install Lion, I tried mounting the InstallESD.dmg (iirc) from a downloaded Lion installer and it couldn't verify, bad checksums... 2. I've tried downloading the installer again on my Macbook, which opened the InstallESD.dmg fine, so I sent it from my Macbook, to my hackintosh via Skype. Didn't work - still invalid checksum. 3. Somehow, when I created a new partition on my hackintosh and put a zip containing the Lion installer on it, then extracted it on that new secondary partition and bam, it works! Verified and mounted without any problems. 4. Same happened with an iLife '11 .dmg, just couldn't verify it. Made a 5gb partition called DMG, redownloaded the .dmg only to that secondary partition - it works. 5. Had no problems with most other .dmg's, just these in particular. What they share in between is that both of them are large, over 2gb. Anyone got any thoughts? It feels retarded to create a new partition whenever my computer feels like it needs to corrupt one of my .dmg's. --- Had 1gb + 1gb of new Kingston RAM and 1gb + 1gb of new PQI RAM ramtest86 showed a gazillion of errors, so I removed the old PQI RAM Everything works fine now, no corruptions. Keep in mind that you only start to feel it with Mac OS, as Windows doesn't bother with CRC checks too much and just continues to corrupt ur system even more... Link to comment Share on other sites More sharing options...
rcork Posted July 29, 2011 Share Posted July 29, 2011 I'm having the same issue ever since i installed Lion. Occasionally Large downloaded dmg (2+GB) have invalid checksum errors. It happens 9 out of 10 times. Even large apps downloaded from the App store fail to install due to corrupt file errors. Smaller files do not. I tested my RAM and found no errors. It happens regardless of browser (tried Chrome, Safari and Firefox). I thought it might have been my network driver but i've tried both Lnx2mac's and the official Realtek drivers and i get the checksum errors each time. Anyone have any ideas what might be happening. i've checked the disk for errors, repaired permissions, reinstalled but i still have the problem. Link to comment Share on other sites More sharing options...
r00tlolz Posted July 30, 2011 Share Posted July 30, 2011 I don't have a problem like that... closest thing I have had to that was that Lion refused to read the decryptedfs of the iPhone 3G 4.2.1 FW from my Snow Leopard partition... that was a bit odd, since I remember it mounted fine in Snow Leopard. I decrypted it again in Lion, and it worked perfectly (btw, I did a clean install, which is why I still have SL). It's most likely a software issue that Apple still has to fix... Link to comment Share on other sites More sharing options...
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