Subject: Re: bug#41792: dd function – message: "No boot sector on USB device""

From: Bernhard Voelker <[email-masked]>
Date: Thu, 11 Jun 2020 23:53:40 +0200

tag 41792 notabug
close 41792
stop

response below...

On 2020-06-10 17:49, Ricky Tigg wrote:
> *Component*: coreutils.x86_64  8.32-4.fc32.; *OS*: Linux Fedora
> 
> Source of file:
> https://www.microsoft.com/en-us/software-download/windows10ISO
> 
> Disc image file
> - checked against its SHA-256 checksum was correct
> - written successfully with that command:
> # dd if=Win10_2004_Finnish_x64.iso of=/dev/sdc bs=4M oflag=direct
_____________________________________________^^^

> status=progress && sync
> 
> Once written, the partition is as follows:
> $ mount | fgrep /run/media/$USER
> /dev/sdb on /run/media/yk/CCCOMA_X64FRE_FI-FI_DV9 type udf
_______^^^
> (ro,nosuid,nodev,relatime,uid=1000,gid=1000,iocharset=utf8,uhelper=udisks2)

sdc vs. sdb?
You wrote to a different disk.

Apart from that, there's not proof that this problem is related to dd(1).
As such, I'm marking this as "not a bug" in our bug tracker.  However. the
discussion can of course continue, and we could even re-open the issue once
it would - unlikely - turn out to be a dd(1) bug.

Have a nice day,
Berny