How to setup/configure the Arch Linux bootcd (live-CD, ISO) so I can login to it using an SSH client?
And which password is by default set for the (automatic login) root account?
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3 Answers
The default root password for the ISO distribution is blank, and by default you are not allowed to login with SSH using a blank password.
Therefore, two commands are necessary:
passwd-- To set a non blank password for the currently logged in user ('root' for liveCD). Enter the password twice.Before September 2021:
systemctl start sshd.service-- To start the ssh daemon.September 2021 and later: sshd is started by default.
Now you can login from your client machine using:
ssh root@ip-addressorssh -o PreferredAuthentications=keyboard-interactive root@ip-addressin case you have a keypair
PS. Don't know the IP address? The live-CD includes commands ifconfig and ip address.
The simplest way is to
- install Arch onto an USB stick/harddisk (you can do this from the live cd)
- in the new installation
- set a root password (
passwd) - allow ssh root login (
vi /etc/ssh/sshd_configand appendPermitRootLogin yes) - enable sshd (
systemctl enable sshd) - also don't forget to enable systemd-networkd anything else you may need (like to preconfigure wifi)
- set a root password (
- boot the new machine from the usb device
- 2The question is asking only for a solution for the live-CD (ISO) boot. installing onto USB stick/harddisk is out of scope for this question.Pro Backup– Pro Backup2018-03-12 08:47:38 +00:00Commented Mar 12, 2018 at 8:47
- @ProBackup this answer is for people who are trying to install arch on a system without a display/keyboardlaktak– laktak2018-03-12 08:56:52 +00:00Commented Mar 12, 2018 at 8:56
In my case it also necessary to ssh to the machine with -o PreferredAuthentications=keyboard-interactive to prevent my desktop from trying my RSA keypair first - which caused the connection to end due the ISO's configured maximum 1 attempts at authentication per connection.
Without this, or unsetting my SSH auth sock environment variable I was effectively unable to log into the Arch ISO environment.
