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Mac os fastcopy8/23/2023 Disk Utility’s Restore function takes care of that for ![]() Don’t worry, though you don’t have to do the This ensures that block data doesn't changeĭuring the copy process. When it can be used, the most important being that copying block byīlock requires that both the source and destination devices be first Using a block copy is faster, but it does have some limits that affect Location of the file on the source and destination devices will likely A file copy, on the other hand, copiesĭata file by file, and while the file data remains the same, the The results are almost anĮxact copy of the original. What it means is that a block copy copies everything in aĭata block from one device to the other. Mean to imply that useful data may get left behind, because that's not It also makes an almostĮxact copy of the source device. The Restore function in Disk Utility makes use of a block copyįunction that can speed up the copy process. Some background on the different between Restoring vs copy and pasting: We will be using Disk Utility's restore function. If you would like to copy drive A to drive B exactly you can do this with Disk Utility. Both are reasonable choices but offer differing syntax. Take care with the trailing slashes these can make a world of difference if your copy starts with a folder.Īlternative tools include ditto and cp. There are numerous guides for getting the most from rsync, rsync command examples provides relevant examples. Rsync is likely the best choice because it can be rerun in case of problems, offers detailed logging, and is as fast as can be while remaining safe. This also allows rsync to write the files to the new drive recreating the original owner information. Sudo, is used to ensure rsync has appropriate rights to access and read all files on your drive regardless of owner.
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