Difference between revisions of "Automatic login to virtual console"

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m (Use drop-in feature of systemd for getty autologin)
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[[es:Automatic login to virtual console]]
 
[[es:Automatic login to virtual console]]
 
[[it:Automatic login to virtual console]]
 
[[it:Automatic login to virtual console]]
{{Article summary start}}
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{{Related articles start}}
{{Article summary text|Describes how to automatically log in to a virtual console.}}
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{{Related|Display Manager}}
{{Article summary heading|Related}}
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{{Related|Silent boot}}
{{Article summary wiki|Display Manager}}
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{{Related|Start X at Login}}
{{Article summary wiki|Silent boot}}
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{{Related articles end}}
{{Article summary wiki|Start X at Login}}
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{{Article summary end}}
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This article describes how to automatically log in to a ''virtual console'' at the end of the [[boot process]]. This article only covers console log-ins; methods for starting an [[Xorg|X server]] are described in [[Start X at Login]].
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This article describes how to automatically log in to a [[Wikipedia:Virtual console|virtual console]] at the end of the [[boot process]]. This article only covers console log-ins; see [[Start X at Login]] for information about automatic login into [[Xorg]].
  
== Installation ==
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== Configuration ==
=== Use drop-in feature of systemd for getty autologin ===
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First create a new directory named getty@tty1.service.d under /etc/systemd/system:
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# mkdir /etc/systemd/system/getty@tty1.service.d
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Configuration relies on systemd [[Systemd#Editing_provided_unit_files|drop-in files]] to override the default parameters passed to ''agetty''.
  
Then create a new file named autologin.conf and add it into the directory:
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The configuration differs for virtual and serial consoles. In most cases you would want to setup up automatic login on virtual console, the one which device name is {{ic|tty''N''}}, where {{ic|''N''}} is a number. The configuration of the automatic login for the serial consoles will be slightly different. Device names of the serial consoles look like {{ic|ttyS''N''}}, where {{ic|''N''}} is a number.
  
{{hc|/etc/systemd/system/getty@tty1.service.d/autologin.conf|
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=== Virtual console ===
2=[Service]
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Create the following file (and the leading directories):
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{{hc|/etc/systemd/system/getty@tty1.service.d/autologin.conf|2=
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[Service]
 
ExecStart=
 
ExecStart=
ExecStart=-/sbin/agetty --autologin <username> --noclear %I 38400 linux
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ExecStart=-/usr/bin/agetty --autologin ''username'' --noclear %I 38400 linux
 
}}
 
}}
  
{{Tip|The option {{ic|1=Type=simple}} will delay the execution of agetty until all jobs (state change requests to units) are completed. On the other hand it may cause systemd boot-up messages to pollute the login prompt. This option is more useful when [[Start X at Login|starting X automatically]]. See {{ic|man systemd.service}} for more info.}}
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{{Tip|The option {{ic|1=Type=idle}} will delay the service startup until all jobs (state change requests to units) are completed. When using {{ic|1=Type=simple}}, the service will be started immediately, but boot-up messages may pollute the login prompt. This option is particularly useful when [[Start X at Login|starting X automatically]]. To use this option, add {{ic|1=Type=simple}} into {{ic|autologin.conf}}.}}
  
If wanting to use 'Type=simple', then your autologin.conf should look like this:
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If you want to use other ''tty'' than ''tty1'' see [[Systemd FAQ#Q:_How_do_I_change_the_number_of_gettys_running_by_default.3F|Systemd FAQ]].
  
{{hc|/etc/systemd/system/getty@tty1.service.d/autologin.conf|
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=== Serial console ===
2=[Service]
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Create the following file (and the leading directories):
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{{hc|/etc/systemd/system/serial-getty@ttyS0.service.d/autologin.conf|2=
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[Service]
 
ExecStart=
 
ExecStart=
ExecStart=-/sbin/agetty --autologin <username> --noclear %I 38400 linux
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ExecStart=-/sbin/agetty --autologin ''username'' -s %I 115200,38400,9600 vt102
Type=simple
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}}
 
}}
 
== Tips & Tricks ==
 
 
=== Avoiding unnecessary dmesg errors ===
 
To avoid errors related to {{ic|display-manager.service}} in dmesg, you should set the default target to multi-user instead of graphical:
 
# systemctl enable multi-user.target
 
  
 
==See also==
 
==See also==
* [[Systemd#Change_default_target_to_boot_into|Change default runlevel/target to boot into]].
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* [[Systemd#Change_default_target_to_boot_into|Change default runlevel/target to boot into]]

Revision as of 12:30, 29 December 2013

This article describes how to automatically log in to a virtual console at the end of the boot process. This article only covers console log-ins; see Start X at Login for information about automatic login into Xorg.

Configuration

Configuration relies on systemd drop-in files to override the default parameters passed to agetty.

The configuration differs for virtual and serial consoles. In most cases you would want to setup up automatic login on virtual console, the one which device name is ttyN, where N is a number. The configuration of the automatic login for the serial consoles will be slightly different. Device names of the serial consoles look like ttySN, where N is a number.

Virtual console

Create the following file (and the leading directories):

/etc/systemd/system/getty@tty1.service.d/autologin.conf
[Service]
ExecStart=
ExecStart=-/usr/bin/agetty --autologin username --noclear %I 38400 linux
Tip: The option Type=idle will delay the service startup until all jobs (state change requests to units) are completed. When using Type=simple, the service will be started immediately, but boot-up messages may pollute the login prompt. This option is particularly useful when starting X automatically. To use this option, add Type=simple into autologin.conf.

If you want to use other tty than tty1 see Systemd FAQ.

Serial console

Create the following file (and the leading directories):

/etc/systemd/system/serial-getty@ttyS0.service.d/autologin.conf
[Service]
ExecStart=
ExecStart=-/sbin/agetty --autologin username -s %I 115200,38400,9600 vt102

See also