Macintosh os x lion mac os x#
Macintosh os x lion install#
Macintosh os x lion mac#

In fact, it is likely to make this claim even if you have never attempted to install Lion after downloading the Install app.

Macintosh os x lion mac#

However, if a copy of the Install app remains on your drive (which is likely if you have been unable to complete a successful install), the Mac App Store will claim that Lion is “Installed” and will not permit a redownload.

Macintosh os x lion mac os x#

Redownload Lion?įor installation failures that could be due to a corrupt copy of the Install Mac OS X Lion app, you should redownload a fresh copy of the app and try again. After a restart, you can re-enable the Firewall. If you don’t use Avast, a more general potential fix is to turn off the Mac OS X Lion Firewall (in Security & Privacy System Preferences), and delete the firewall-related file in /Library/Preferences ( This bugs have been reported to Apple long time before the Lion release, but it is still not fixed by Apple.”

Lion either does not redirect the packets (your case) or crashes. In this same thread, the company lays the blame on Apple: “Packet forwarding is broken on Lion. As posted in anĪvast forum thread, a supposed bug-fix update, still in beta, is available. If you useĪvast’s Web Shield, the solution is to uninstall avast!. Lose your Internet connection after an otherwise successful install of Lion. Otherwise, if nothing here has any positive effect (and assuming the drive itself is not physically defective), the solution is to reformat the drive and start over. Assuming repairs are successful, try the Lion installer again. Otherwise,Īccording to an Apple Support Communities thread, the fix is to boot from a Snow Leopard Install disc/drive and select to Repair Disk from Disk Utility. Zapping the PRAM” is sufficient to get past this roadblock. The same is true if the Install application simply stalls before completing. If you see this unwelcome message, chances are slim that trying again will lead to success. Click restart to restart your computer and try installing again. Mac OS X Lion couldn’t be installed, because the disk (volume name) is damaged and can’t be repaired. This folder, created by and used by Time Machine, is fooling the Install app into thinking your startup drive is actually a Time Machine backup. As covered inĪn Apple Support Communities thread, the likely cause is an errant Time Machine-related Backups.backupdb folder at the root level of your drive. The message can appear even though your startup drive is obviously not acting as a Time Machine backup. This message again means that the Lion installation will not successfully complete. This disk is used for Time Machine backups If this resizing trick fails, you will likely need to reformat the drive. When done, you can restore the partition to its previous size. This disk cannot be used to start up your computerĪpple offers no explanation as to why the installation may balk here, other than to say it can happen in “some situations.” However,Īpple does provide a solution: Restart your Mac, launch Disk Utility and, from the Partition tab, slightly reduce the size of your startup partition (by as little as 128MB).