961
usb formatting (sh.itjust.works)
submitted 11 months ago by SkySyrup@sh.itjust.works to c/linuxmemes@lemmy.world
53 comments fedilink hide all child comments

shamelessly stolen from nixCraft on mastodon

you are viewing a single comment's thread
view the rest of the comments
[-] MonkderZweite@feddit.ch 1 points 11 months ago* (last edited 11 months ago)

so why even use pv since all you're doing is measuring your RAM speed and available cache size

This is probably why pv progress fills in a second but is only done after a few minutes. Nonetheless, shell redirect, cat, cp work fine and handle blocksize and cache dynamically.

Your worst case scenario never happened to me after years of using pv/cp for flashing sticks/overwriting/copying partitions, even with some ...risky mount settings. Honestly doesn't make much sense to me either. Again, dd isn't some sort of magical safe handle to make the process progress smoothly. Like i use to say, dd is a skalpell, not a shovel.

[-] azertyfun@sh.itjust.works 2 points 11 months ago

I mean yeah, the bits end up where they should. It's just that the speed/progress indication is near useless with pv since at the end of the copy you still need to wait for the entire write buffer to be flushed (2 GiB in my experience, which can take several minutes).

So IMO dd with at least oflag=osync,odirect is safer than cp and pv with which a newbie might forget to run sync and unplug the usb key immediately, so they'll be missing a lot of data.

Maybe some people use dd for the wrong reason, it's their problem, but the solution is to use dd bs=4M oflag=osync,odirect, not to use cp.

this post was submitted on 05 Dec 2023
961 points (98.7% liked)

linuxmemes

21281 readers
189 users here now

Hint: :q!

Sister communities:

Community rules (click to expand)

1. Follow the site-wide rules

2. Be civil
  • Understand the difference between a joke and an insult.
  • Do not harrass or attack members of the community for any reason.
  • Leave remarks of "peasantry" to the PCMR community. If you dislike an OS/service/application, attack the thing you dislike, not the individuals who use it. Some people may not have a choice.
  • Bigotry will not be tolerated.
  • These rules are somewhat loosened when the subject is a public figure. Still, do not attack their person or incite harrassment.
    • 3. Post Linux-related content
  • Including Unix and BSD.
  • Non-Linux content is acceptable as long as it makes a reference to Linux. For example, the poorly made mockery of sudo in Windows.
  • No porn. Even if you watch it on a Linux machine.
    • 4. No recent reposts
  • Everybody uses Arch btw, can't quit Vim, and wants to interject for a moment. You can stop now.
    •  

    Please report posts and comments that break these rules!

    Important: never execute code or follow advice that you don't understand or can't verify, especially here. The word of the day is credibility. This is a meme community -- even the most helpful comments might just be shitposts that can damage your system. Be aware, be smart, don't fork-bomb your computer.

    founded 1 year ago
    MODERATORS
    poopsmith@lemmy.world
    zephyr@lemmy.world
    rtxn@lemmy.world