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On 25/01/2025 22:34, Chris Green wrote:I think an ssh key will be easier! :-)I am trying to set up a new, headless Pi 4B. I have copied the 'lite'
image to a USB drive and created the empty 'ssh' file in the boot
partition.
It boots OK and the ssh deamon is running but the default username
'pi' and password 'raspberry' don't work. How on earth do I get into
it to start it up?
I can edit files on the USB drive OK so I can add and modify entries
in /etc/passwd and /etc/shadow. So all I actually need to do is set it
up so the user 'pi' has no password but I'm not doing too well at
doing that at the moment.
Any ideas, or other ways to get into it?
Others have told you how to use the imager, but IIRC all that does is
set up a file in the VFAT partition....
Here is a shameless cut'n paste
Write the Raspberry Pi OS image to your SD card as normal
Mount the newly written /boot partition on the Pi on your computer
Create an empty file named ssh, without a file type / ending. On
Linux and macOS, this is easily done with touch ssh if you’re in the
right directory. This tells the OS to enable SSH access right away.
Next, create a user with a password on the SD card as that’s not
done automatically anymore.
Create an encrypted password for your new Raspberry Pi user. On
Linux and macOS, this can be done with OpenSSL. For added security,
write the new password into a masked shell variable so it doesn’t show
up in your computer’s shell history:
[morph@void ~]$ read -s pw
[morph@void ~]$ echo "$pw" | openssl passwd -6 -stdin
$6$4E2z6hQOGLZCK5ZN$ESo2r/tO7Sy1Xmyp/bFzQ0A8zNNMhOoj0XocoGVbc8PVLcHlDr/kQiRvv/vOfdopLkylTVQSfK4n97SR9VGGF1
the long random string is your encrypted password. Next, create
another file next to the ssh file on the SD card’s boot partition named
userconf.txt.
Open userconf.txt with your favourite text editor and in the
first and only line enter your desired username and the encrypted
password, separated by a colon. It should look like this:
morph:$6$4E2z6hQOGLZCK5ZN$ESo2r/tO7Sy1Xmyp/bFzQ0A8zNNMhOoj0XocoGVbc8PVLcHlDr/kQiRvv/vOfdopLkylTVQSfK4n97SR9VGGF1
And that’s it. Unmount your card, pop it into the Pi, connect it to your
network and boot. You should now be able to SSH into it using your new
credentials. No monitor needed.
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