Difference between revisions of "Linux command: dd"
Jump to navigation
Jump to search
Rafahsolis (talk | contribs) (Created page with "== dd == It's used to manage images (create / dump)<br /> To dump an image to a device (WARNING, IF YOU ENTER THE WRONG DEVICE IT WILL BE OVERRITEN) dd bs=4M if="/home/linux/...") |
Rafahsolis (talk | contribs) |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 7: | Line 7: | ||
(*) Note: The cdrom must not be mounted.<br /> | (*) Note: The cdrom must not be mounted.<br /> | ||
You can check the image with md5sum. | You can check the image with md5sum. | ||
| + | <br /> | ||
| + | To see progres: | ||
| + | dd status=progress if=/dev/cdrom of=/tmp/cdimg1.iso | ||
| + | |||
| + | == Create compressed image == | ||
| + | sudo dd if=/dev/sda conv=sync,noerror bs=64K | gzip -c > /PATH/TO/DRIVE/backup_image.img.gz | ||
| + | == Restore compressed image == | ||
| + | gunzip -c /PATH/TO/DRIVE/backup_image.img.gz | dd of=/dev/sda | ||
Latest revision as of 12:16, 27 February 2019
dd[edit]
It's used to manage images (create / dump)
To dump an image to a device (WARNING, IF YOU ENTER THE WRONG DEVICE IT WILL BE OVERRITEN)
dd bs=4M if="/home/linux/2013-02-09-wheezy-raspbian.img" of=/dev/mmcblk0
To create an image from a CD:
dd if=/dev/cdrom of=/tmp/cdimg1.iso
(*) Note: The cdrom must not be mounted.
You can check the image with md5sum.
To see progres:
dd status=progress if=/dev/cdrom of=/tmp/cdimg1.iso
Create compressed image[edit]
sudo dd if=/dev/sda conv=sync,noerror bs=64K | gzip -c > /PATH/TO/DRIVE/backup_image.img.gz
Restore compressed image[edit]
gunzip -c /PATH/TO/DRIVE/backup_image.img.gz | dd of=/dev/sda