Hi,
Thomas Kragh <thomas.kragh@math.uu.se> (2025-10-17):
> On the web page https://wiki.debian.org/DebianInstaller/CreateUSBMedia
> it is said that one can copy the debian.iso file directly to the media
> using:
>
> sudo cp debian.iso "$TARGET_DEVICE"
>
> However, "cp" reports the error:"cp: cannot create regular file '/dev/sdb': No medium found"
The documented command has been working for many years and I don't
really see why it wouldn't work all of a sudden.
I've just verified on this specific Debian 12 system:
kibi@tokyo:~$ lsblk|grep sdb
sdb 8:16 1 29.9G 0 disk
kibi@tokyo:~$ sudo cp -v isos/debian-13.0.0-amd64-netinst.iso /dev/sdb
'isos/debian-13.0.0-amd64-netinst.iso' -> '/dev/sdb'
(-v is only about verbosity.)
What system are you running? Are you sure /dev/sdb was the correct
device in the first place? `dmesg` might give some hints about what
happened.
Cheers,
--
Cyril Brulebois (kibi@debian.org) <https://debamax.com/>
D-I release manager -- Release team member -- Freelance Consultant
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