55 lines
1.5 KiB
Markdown
55 lines
1.5 KiB
Markdown
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title = "Formatting MacOS Disk on Command Line"
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date = 2021-08-01T00:00:00
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lastmod = 2021-08-01T00:00:00
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draft = false
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# Authors. Comma separated list, e.g. `["Bob Smith", "David Jones"]`.
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authors = ["Carl Pearson"]
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tags = ["c3sr"]
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summary = "What to do when Disk Utility won't"
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projects = []
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+++
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For reasons beyond my comprehension, macOS's Disk Utility randomly won't format external drives.
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For example, here's what disk utility shows when I first plug in the flash drive.
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Here's the error when I try to format it as ExFAT.
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Instead, use the `diskutil` command to first `list` the disks to find out which one is the offending disk `disk4` in this case) and then reformat it with something like `diskutil eraseDisk [format] [name] [disk]`.
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