dd Questions
4
Solved
I need to find know how to properly use the dd() function in Laravel projects.
For example - I have got tasks to debug some code and functionality in my project (PHP /Laravel) and it always takes m...
Transmitter asked 26/3, 2022 at 14:33
2
Solved
I have a binary file and i want to replace the value A2 at address DEADBEEF with some other value, say A1.
How can I do this with dd? If there are other tools that can do this, please suggest. But...
4
Solved
When I run in my Ubuntu terminal:
sudo dd if=/dev/sda of=~/file bs=8k count=200k; rm -f ~/file
it works fine.
If I run it through Pythons subprocess.Popen():
output, err = subprocess.Popen(['s...
Snatch asked 17/11, 2016 at 18:51
4
I am writing a Powershell script to make a raw copy of a drive and I have been unable to find a way to complete this.
On Linux, I would use 'dd' to perform this copy.
There are a handful of tools...
Insoluble asked 2/6, 2016 at 17:5
4
Solved
I have a large file which I am only interested in the first couple of megabytes in the head.
How do I extract the first x-megabyte from a large file in unix/linux and put it into a seperate file?...
Mcpherson asked 31/8, 2012 at 19:21
1
Solved
I am very new to Linux. I was reading this article on using the dd command to burn ISOs to USB drives.
I didn't understand this section on fdatasync.
https://www.howtogeek.com/414574/how-to-burn-an...
7
Solved
In Linux, we can do
dd if=/dev/sdb of=bckup.img
but if the disk is of 32GB with only 4GB used, the 32GB image file is waste of space-time. Is there any way or tool to create images with only val...
2
Solved
I am an avid Linux user who is being made to use Windows for work. I was given the go-ahead to install WSL2 and Ubuntu on the work computer. I would like to burn a bootable USB using dd in WSL2, bu...
Jael asked 4/11, 2020 at 16:21
1
Solved
I want to display the content of my session with the same style that the dd() function.
I try to do this :
<div>
{!! dump(session()->all()) !!}
</div>
And i get this error :
Fa...
Aut asked 14/1, 2020 at 12:51
2
I'm having problem to use this command under windows
dd if=*file* of=/dev/sdx bs=512 seek=2 conv=fsync
Using cygwin shell:
$ dd if=file of=/cygdrive/f bs=512 seek=2 conv=fsync
dd: failed...
Nitriding asked 1/6, 2017 at 11:31
2
Solved
I'm trying to copy a compressed image into a partition inside a Beaglebone.
Usually, it is a 2 step process:
xz -d console.img.xz # console.img is created
dd if=console.img of=/dev/mmcblk0p3
Is ...
Notwithstanding asked 5/1, 2018 at 8:21
4
Solved
1
Solved
I have a server with a RAID50 configuration of 24 drives (two groups of 12), and if I run:
dd if=/dev/zero of=ddfile2 bs=1M count=1953 oflag=direct
I get:
2047868928 bytes (2.0 GB) copied, 0.80...
2
I have noticed that writing in Laravel's Controller:
dd($array)
outputs an un-structured view of array in Chrome Developer Tools (chome 61.0.3163.91 64-bit, MAC OS).
before it was something...
Electromyography asked 21/9, 2017 at 10:42
3
Solved
If I have a file on a file system I can do something like this with dd:
dd if=/my/filewithaheader.bin bs=32k skip=1 | gunzip | tar tvf
however if I try something like this:
./commandthatputsstu...
2
I'd like to measure tmpfs performance by using dd. But it fail, like below:
# dd if=/dev/zero of=/tmp/128M bs=4M count=32 oflag=direct
dd: failed to open ‘/tmp/128M’: Invalid argument
Any help?...
3
Solved
What is the most efficient and reliable way in Python to split sectors up like this:
number: 101 (may vary of course)
chunk1: 1 to 30
chunk2: 31 to 61
chunk3: 62 to 92
chunk4: 93 to 101
Flow:
co...
2
Solved
When I call dd() (die and dump) like dd($user->friends()); I only get the output from the first record in the collection.
When I try to do something like:
foreach($user->friends() as $f...
2
Solved
I am trying to convert a bootloader I wrote in Assembly Language to an ISO image file. The following is the code from MikeOS bootloader. Here is my bootloader code:
BITS 16
start:
mov ax, 07C0h ...
1
Solved
I tested this:
strace python -c "fp = open('/dev/urandom', 'rb'); ans = fp.read(65600); fp.close()"
With the following partial output:
read(3, "\211^\250\202P\32\344\262\373\332\241y\226\340\16...
Cathrine asked 2/10, 2015 at 11:38
5
Solved
How do you calculate the optimal blocksize when running a dd? I've researched it a bit and I've not found anything suggesting how this would be accomplished.
I am under the impression that a...
7
Solved
Is there a way to have Linux read ahead when cloning a disk? I use the program named "dd" to clone disks. The last time I did this it seemed as though the OS was reading then writing but neve...
Lori asked 10/9, 2008 at 16:39
6
Solved
3
Solved
I have a hard drive that I want to overwrite, not with null bytes, but with a message.
48 69 64 64 65 6e 20 = "Hidden "
Here's my command thus far:
echo "Hidden " > /myfile
dd if=/myfile of=/...
Cassius asked 21/12, 2013 at 0:59
1
Solved
If you look up how to clone an entire disk to another one on the web, you will find something like that:
dd if=/dev/sda of=/dev/sdb conv=notrunc,noerror
While I understand the noerror, I am gett...
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