From a1c697bb1b6346bef9d6676cef04a81f23a03b55 Mon Sep 17 00:00:00 2001 From: o0nd7ots <124466962+o0nd7ots@users.noreply.github.com> Date: Sun, 3 Mar 2024 21:00:11 +0000 Subject: [PATCH] dd: update page (#12442) * Added status=progress for base usage * condensed knowledge * Added info * Changed one use * improved wording Co-authored-by: Juri Dispan * Improved wording Co-authored-by: Juri Dispan * Improved wording Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com> * Swap link from gnu to posix Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> * Revert 4M to numeric * moved `if` and `of` to be the last arguments * Updated linux equivalent of dd * Removed `status=progress` from common * improved spacing Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> * replaced 100 with placeholder Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> * replaced 100 with description last commit was actually also this Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> * Removed bad space * removed bad space * removed newline at end of file --------- Co-authored-by: Juri Dispan Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com> Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com> --- pages/common/dd.md | 22 +++++++++------------- pages/linux/dd.md | 22 +++++++++------------- 2 files changed, 18 insertions(+), 26 deletions(-) diff --git a/pages/common/dd.md b/pages/common/dd.md index 1bad41808..4f92a4262 100644 --- a/pages/common/dd.md +++ b/pages/common/dd.md @@ -1,28 +1,24 @@ # dd > Convert and copy a file. -> More information: . +> More information: . -- Make a bootable USB drive from an isohybrid file (such like `archlinux-xxx.iso`): +- Make a bootable USB drive from an isohybrid file (such as `archlinux-xxx.iso`): `dd if={{path/to/file.iso}} of=/dev/{{usb_drive}}` -- Clone a drive to another drive with 4 MiB block and ignore error: +- Clone a drive to another drive with 4 MiB block size and flush writes before the command terminates: -`dd if=/dev/{{source_drive}} of=/dev/{{dest_drive}} bs={{4194304}} conv={{noerror}}` +`dd bs={{4194304}} conv={{fsync}} if=/dev/{{source_drive}} of=/dev/{{dest_drive}}` -- Generate a file of 100 random bytes by using kernel random driver: +- Generate a file with a specific number of random bytes by using kernel random driver: -`dd if=/dev/urandom of={{path/to/random_file}} bs={{100}} count={{1}}` +`dd bs={{100}} count={{1}} if=/dev/urandom of={{path/to/random_file}}` -- Benchmark the write performance of a disk: +- Benchmark the sequential write performance of a disk: -`dd if=/dev/zero of={{path/to/file_1GB}} bs={{1024}} count={{1000000}}` +`dd bs={{1024}} count={{1000000}} if=/dev/zero of={{path/to/file_1GB}}` -- Generate a system backup into an IMG file: +- Create a system backup and save it into an IMG file (can be restored later by swapping `if` and `of`): `dd if={{/dev/drive_device}} of={{path/to/file.img}}` - -- Restore a drive from an IMG file: - -`dd if={{path/to/file.img}} of={{/dev/drive_device}}` diff --git a/pages/linux/dd.md b/pages/linux/dd.md index ee8464260..02b22516a 100644 --- a/pages/linux/dd.md +++ b/pages/linux/dd.md @@ -3,29 +3,25 @@ > Convert and copy a file. > More information: . -- Make a bootable USB drive from an isohybrid file (such like `archlinux-xxx.iso`) and show the progress: +- Make a bootable USB drive from an isohybrid file (such as `archlinux-xxx.iso`) and show the progress: -`dd if={{path/to/file.iso}} of={{/dev/usb_drive}} status=progress` +`dd status=progress if={{path/to/file.iso}} of={{/dev/usb_drive}}` -- Clone a drive to another drive with 4 MiB block, ignore error and show the progress: +- Clone a drive to another drive with 4 MiB block size and flush writes before the command terminates: -`dd if={{/dev/source_drive}} of={{/dev/dest_drive}} bs={{4M}} conv={{noerror}} status=progress` +`dd bs={{4M}} conv={{fsync}} if={{/dev/source_drive}} of={{/dev/dest_drive}}` -- Generate a file of 100 random bytes by using kernel random driver: +- Generate a file with a specific number of random bytes by using kernel random driver: -`dd if=/dev/urandom of={{path/to/random_file}} bs={{100}} count={{1}}` +`dd bs={{100}} count={{1}} if=/dev/urandom of={{path/to/random_file}}` - Benchmark the write performance of a disk: -`dd if=/dev/zero of={{path/to/file_1GB}} bs={{1024}} count={{1000000}}` +`dd bs={{1M}} count={{1000000}} if=/dev/zero of={{path/to/file_1GB}}` -- Generate a system backup into an IMG file and show the progress: +- Create a system backup and save it into an IMG file (can be restored later by swapping `if` and `of`): -`dd if={{/dev/drive_device}} of={{path/to/file.img}} status=progress` - -- Restore a drive from an IMG file and show the progress: - -`dd if={{path/to/file.img}} of={{/dev/drive_device}} status=progress` +`dd if={{/dev/drive_device}} of={{path/to/file.img}}` - Check the progress of an ongoing dd operation (run this command from another shell):