2015-12-27 09:58:53 +00:00
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# dd
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2016-01-07 17:31:27 +00:00
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> Convert and copy a file.
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2021-03-30 11:18:12 +01:00
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/dd-invocation.html>.
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2015-12-27 09:58:53 +00:00
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2021-01-31 17:05:18 +00:00
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- Make a bootable usb drive from an isohybrid file (such like `archlinux-xxx.iso`) and show the progress:
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2015-12-27 09:58:53 +00:00
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2016-04-16 20:43:30 +01:00
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`dd if={{file.iso}} of=/dev/{{usb_drive}} status=progress`
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2015-12-27 09:58:53 +00:00
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2016-04-16 20:43:30 +01:00
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- Clone a drive to another drive with 4MB block, ignore error and show progress:
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2015-12-27 09:58:53 +00:00
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2016-04-16 20:43:30 +01:00
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`dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs=4M conv=noerror status=progress`
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2015-12-27 09:58:53 +00:00
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2016-01-16 14:12:05 +00:00
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- Generate a file of 100 random bytes by using kernel random driver:
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2015-12-27 09:58:53 +00:00
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`dd if=/dev/urandom of={{random_file}} bs=100 count=1`
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2016-01-07 17:31:27 +00:00
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- Benchmark the write performance of a disk:
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2015-12-27 09:58:53 +00:00
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`dd if=/dev/zero of={{file_1GB}} bs=1024 count=1000000`
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2018-01-07 19:32:47 +00:00
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2018-01-08 06:42:00 +00:00
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- Check progress of an ongoing dd operation (Run this command from another shell):
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2018-01-07 19:32:47 +00:00
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`kill -USR1 $(pgrep ^dd)`
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