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postComment: "Responding to bushy,\n\nWhile the support web page says \"DiskWarrior 4 version is Compatible with Mac OS X 10.7 Lion\", the remark on their web site 09.11.11 is somewhere between misleading and wrong. Moreover, their web site (as of 2011 Oct 22) does NOT use the phrase \"completely compatible\" with respect to v4.3 and Lion although the \"System Requirements\" web page for v4.4 does use the phrase \"completely compatible\" (more on that in a bit).\n\nMultiple people reported (including myself) that v4.3 cannot rebuild a system volume for a system running OS X 10.7.1 with Apple Software updates applied. Where their web site might be \"technically correct\" is that some OS X 10.7 (and pre OS X 10.7.1) system volumes, where no Apple Software Updates have been applied, could be rebuilt.\n\nNow:\n\nDiskWarrior 4 version 4.4 is compatible with Lion in that a DVD produced by their upgrade process is bootable and can rebuild a system volume for OS X 10.7 up thru and including OS X 10.7.2 with the Apple Software Updates as of 2011 Oct 22. Because of this, I changed the status for this app from \"doesn't work\" to \"some problems\".\n\nThe reason why I did not change the status to \"works fine\" is that when the DiskWarrior application is copied from that v4.4 DVD into /Applications/Utilities/DiskWarrior.app and run as an application on OS X 10.7.1, or OS X 10.7.2 or even OS X 10.6.8, the DiskWarrior application crashes soon after you enter the admin's password. So if you boot from there DVD, everything appears to work fine. If you try to run DiskWarrior as a standalone application in the location where they say you must install it, it crashes after authenticating.\n\nBTW: The standalone application crashes ALSO occur on freshly installed Lion OS X 10.7.1 and 10.7.2 with only the Apple Software Updates applied. Moreover, the standalone application also crashes when the systems are booted into safe mode.\n\nDiskWarrior v4.4 DVD is a step forward in that it can rebuild Lion systems volumes to date (2011 Oct 22). Unfortunately, as a standalone application /Applications/Utilities/DiskWarrior.app is a regression in that it now crashes under both Lion and Snow Leopard."