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Win Mount Mac Drive For Editing10/20/2021
While in many cases formatting errors are relatively minor and tolerated by the system, there are times when the system may determine it safest to only mount the drive in a read-only state to prevent corruption to the data on it.When this happens, you should see a warning when attaching the drive that states it is only being mounted in read-only mode, and in these cases you should first back up all contents on the drive. This volume needs to be repaired, so if you see errors listed in red when clicking "Verify Disk," then be sure to correct them as they can result in the disk only mounting as read-only.Formatting errors can also cause a drive to be read-only. In here, locate the file called "volinfo.database" and remove it from this folder (you may need to authenticate to do this).Once this is complete, detach and reattach your external drive, and then try toggling the setting to ignore ownership on the volume.Note that these permissions settings will only be available on drives with formats that support them, so if you are using a FAT32-formatted drive, the option to ignore permissions will not be available. To do this, choose "Go to Folder" from the Finder's Go menu, and then type in "/var/db" and press Enter to open the hidden system database folder. Then check the box to "ignore ownership on this volume," or toggle it off and then on if it's already enabled.If this setting is enabled and you still do not have access, you can try removing the system's volume information database, which holds this setting for external drives on the system. In the information window that pops up, go to the Sharing section and click the lock to authenticate.Then click the Options button and choose GUID as the partition type to use, followed by clicking Apply to save these changes.Generally read-only errors with drives are limited to their formatting, so these steps should help fix the problem, but do keep an eye on the drive if the problem crops up again, it could be a hardware malfunction in the drive, in which case it would be best to replace it.Questions? Comments? Have a fix? Post them below orBe sure to check us out on Twitter and the CNET Mac forums. This can be done with Disk Utility by selecting the drive device in the program's sidebar, then going to the Partition tab that appears and choosing "1 Partition" from the drop-down menu.
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