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DiskWarrior - A very useful disk repair tool
Authored by: Rusty Little on Oct 11, '04 07:16:01PM


Sorry, but you are mistaken about DiskWarrior and fsck. DiskWarrior and fsck are VERY DIFFERENT. fsck was written for UNIX file systems. Apple took it's formerly known "Disk First Aid" and built fsck_hfs for Macintosh disks. When fsck is invoked for a Macintosh disk it just redirects to fsck_hfs. fsck_hfs is part of Darwin and therefore the source code is available to the public. As co-author of DiskWarrior I can tell you there is very little resemblance between the methods used by fsck_hfs versus DiskWarrior.

When a user chooses "Repair Disk" in "Disk Utility", fsck_hfs shared code gets executed. Additionally, fsck_hfs is automatically run on all Macintosh disks attached locally to a Macintosh when it is started after it has not been being properly shut down. Most Macintosh users run fsck_hfs often either unknowningly or intentionally while never having used the Terminal application.

Rusty Little
Alsoft, Inc.

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