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1 vote
2 answers
241 views

dd not zero filling flash drive

I have a sd card, wich works fine, and ubuntu 23.04, and dd does not fully mirror a disk image. example: expected: $ dd if=/dev/zero of=/dev/sdb $ strings /dev/sdb $ actual: $ dd if=/dev/zero of=/dev/...
jp_'s user avatar
  • 160
0 votes
0 answers
235 views

DD copy prematurely reports "no space left on device". Beyond hardware failure, what could have caused that?

I have an embedded device booting from SD card with 8GB internal flash (enumerating at /dev/mmcblk1). I used to be able to manipulate the flash just fine (as in, I know that it is actually 8GB and ...
KubaFYI's user avatar
  • 133
0 votes
2 answers
147 views

How do I create a backup of my hard drive in small sections?

I have an old laptop with a 500Gb non-removable (soldered) hard drive. I am attempting to recover some data from the drive. After some reading, I've discovered that I should create a copy of the drive ...
SlimyHare's user avatar
2 votes
2 answers
9k views

Rufus Linux DD mode to Flash drive Normalization

NEED help, My primary language is not English, so here it goes: I already destroyed one of my flash drive Transcend Jetflash 790 32GB. GOT a replacement from the warranty. I'm trying to dual boot ...
Tanvir mahmud's user avatar
0 votes
1 answer
592 views

What does the dd command do?

If I make a copy with the "dd" command from a block device say 8 GB to a 16 GB block device, the content of the first device is copied to the second device until it is full? (that is, until ...
yellowdog's user avatar
  • 423
4 votes
1 answer
327 views

How can I recreate an installer iso from a usb (Mac/Windows) using dd?

I have read many "how do I write an iso to USB" questions. I am looking for a way to reverse the process. My question is about taking a USB stick containing a Windows installer or Mac ...
decuser's user avatar
  • 229
1 vote
3 answers
2k views

USB Flash Drive not recognized after unsafe eject while dd was running

Wasn't thinking I'm going to end up here. What happened? I wanted to benchmark the speeds of a USB flash drive, which was USB 2.0. My system is Debian bullseye/sid 5.8.7-1. I used the same method ...
rel0adedd's user avatar
24 votes
3 answers
29k views

Debian: creating Windows 10 bootable install USB-drive using terminal (dd)

My goal is so simple, the title says it all, but every way I've tried, I've failed. I've read instructions on various sites (besides here) and they all seem to be missing something... this is what I ...
skaai's user avatar
  • 343
0 votes
1 answer
350 views

Why is my USB device not being registered after zeroing with dd?

I recently got a Sandisk Cruzer USB to install a new operating system on my Kubuntu Linux computer. Fearing that the drive had malware on it, I wrote zeroes to the drive: dd bs=1G if=/dev/zero of=/...
weirdpusheen's user avatar
0 votes
1 answer
2k views

How does dd know about correct disk label when burning iso to usb?

I used dd to burn arch linux image to usb stick, but now I need to store additional files on the same usb stick. The usb stick is read-only after dd so I decided to format it manually. The stick was ...
Evgeniy's user avatar
  • 160
0 votes
1 answer
522 views

How to make bootable flash from ISO with DD?

I have downloaded ALT Linux rescue ISO and wrote it to my flash stick with sudo dd if=regular-rescue-latest-x86_64.iso of=/dev/sda1 Unfortunately, it doesn't boot on my old computer. I tried USB-HDD,...
Dims's user avatar
  • 12.8k
0 votes
2 answers
3k views

Read bytes from usb flash drive

I need a hex dump of a usb flash drive from the first few kilobytes. The flashdrive is fresh formatted with fat32 what i did is checking with lsblk where is my usb device and i got: sdb ...
Eisen's user avatar
  • 3
0 votes
1 answer
204 views

Why won't bootable DVD image files burned on USB stock boot?

Suppose I have DVD iso file. As far as I understand, these non-hybrid iso files don't contain GPT or MBR ar the beginning, instead they have their own speciffic file system and some partition table. ...
Kristaps Čivkulis's user avatar
3 votes
1 answer
4k views

When I use dd command it does not write data to USB stick

Can anyone please help me to solve this problem? Sometime when I do a dd command to a USB stick it finishes very quickly without actually writing data to USB. I discovered it is actually writing to /...
sushil dubey's user avatar
0 votes
0 answers
701 views

How do I test a USB drive using `dd`?

I've bought a 32GB USB stick, but I have doubts if it's not faulty... formatted as NTFS, writing speed easily falls to ~40 kbps, which means copying even relatively small (a few hundred MB) data can ...
gaazkam's user avatar
  • 1,003
1 vote
3 answers
8k views

Can't find the file specified

So I inturrupted a dd for windows operation, and now my usb stick won't work. I saw this post but, it's solution doesn't work for me, as i don't have a chromebook. Attempts to format the drive just ...
Not_Lazy's user avatar
1 vote
1 answer
1k views

How come monitoring the status of a write to USB isn't reliable?

I write ISO files to USB thumb drives a lot, and I'm trying to find a way to monitor the status of a write. Googling this, I have found a bunch of solutions, including pv, dcfldd and the USR1 signal ...
Hubro's user avatar
  • 5,836
0 votes
2 answers
1k views

dd writing on USB flash drive causes massive reads

I am currently restoring a usb stick with a dd image, I have previously created. However is noticed very poor write speed around ~7 MB/s although the stick is usually much faster. After looking ...
Antagonym's user avatar
0 votes
1 answer
465 views

cannot boot kali usb

I downloaded - from http://www.kali.org/downloads/ - Kali Linux 32 bit ISO and then sha1sum-ed. blkid shows my usb on /dev/sdc1 then dd if=<path-to-kali.iso> of=/dev/sdc (I have also ...
blue_xylo's user avatar
  • 121
1 vote
2 answers
13k views

How do I make a USB flash drive writable on Linux? [duplicate]

I want to reformat a SanDisk Cruzer Edge USB flash drive but it appears read-only: $ sudo dd if=/dev/zero of=/dev/sdg dd: failed to open ‘/dev/sdg’: Read-only file system I checked the readonly ...
Jephir's user avatar
  • 1,059
0 votes
1 answer
3k views

Format flash drive without partitions

I'm trying to format a flash drive with a FAT partition to use in my car stereo, but running into a small problem. I've tried making it all one big FAT 16 partition, and the stereo won't accept it. ...
vityav's user avatar
  • 47
2 votes
3 answers
10k views

Make Live USB flash drive with dd

The last time I booted from a USB flash drive was back in 2006. Ever since, I keep failing at making live USB bootables. I tried getting Fedora 17 and 18, Ubuntu, and tons of other distros to boot ...
if __name__ is None's user avatar
0 votes
1 answer
56 views

USB Flash over {H,S}DD

I have task to use 32Gb flash as place to install OS, so PC without hard drive load flash and can work(Not LiveUSB!). Of course, I can use generic install algorithm, but I have already a computer with ...
KAction's user avatar
  • 359