Linux

47940 readers

1238 users here now

From Wikipedia, the free encyclopedia

Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

Rules

Posts must be relevant to operating systems running the Linux kernel. GNU/Linux or otherwise.
No misinformation
No NSFW content
No hate speech, bigotry, etc

Related Communities

Community icon by Alpár-Etele Méder, licensed under CC BY 3.0

founded 5 years ago

MODERATORS

AgreeableLandscape@lemmy.ml

nooter692@lemmy.ml

MarcellusDrum@lemmy.ml

cypherpunks@lemmy.ml

cyclohexane@lemmy.ml

d3Xt3r@lemmy.nz

[Question] Using DD to make a backup of an OS drive? (lemmy.ml)

submitted 4 months ago by brownmustardminion@lemmy.ml to c/linux@lemmy.ml

28 comments fedilink hide all child comments

Would this work or would I have problems:

Using dd command to backup an entire SSD containing dual boot Windows/Ubuntu partitions into an .iso file, with the intent to then dd that iso back onto the same size SSD in the case of a drive failure?

you are viewing a single comment's thread
view the rest of the comments

[–] just_another_person@lemmy.world 10 points 4 months ago (1 children)

As long as it's not a mounted and running live system, it should work. Not the most efficient way to do such a thing, but I would think it should work.

[–] cmnybo@discuss.tchncs.de 4 points 4 months ago (2 children)

You can zero out the free space on each partition then pipe the output from dd into gzip if you want to save space.

[–] ryannathans@aussie.zone 10 points 4 months ago (1 children)

Might as well just use partclone at this point

[–] Para_lyzed@lemmy.world 6 points 4 months ago

Seconding partclone here, it's the easiest solution for imaging that only backs up the data on the partition that is used. Plus, it's in RescueZilla, which is pretty intuitive and user friendly for those that prefer GUIs

[–] rotopenguin@infosec.pub 1 points 4 months ago

Gzip runs at tens of MB/s. Zstd runs at least 10x faster, and then goes fasterer with multithreading (-T0).