arm64: missing support for ttyAMA0 console interfaces
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	a.kudientsov
	Mar 11 2026, 3:16 PM

Description

Tested the latest build on AZURE Standard_D2plds_v6 instance with ttyAMA console - login prompt doesn’t appear

[  OK  ] Started Getty on tty1.
[  OK  ] Started Serial Getty on ttyAMA0.
[  OK  ] Reached target Login Prompts.
[  OK  ] Reached target Multi-User System.
[  OK  ] Reached target VyOS target.
         Starting Execute cloud user/final scripts...
         Starting Record Runlevel Change in UTMP...
[  OK  ] Started Microsft Azure Linux Agent.
[  OK  ] Finished Record Runlevel Change in UTMP.
[   63.389295] vyos-router[2068]: Starting VyOS router.
[   63.848313] cloud-init[2106]: Cloud-init v. 22.1-453-g11d4c471-1~bddeb running 'modules:final' at Wed, 11 Mar 2026 14:59:06 +0000. Up 63.70 seconds.
[   63.855633] cloud-init[2106]: No 'final' modules to run under section 'cloud_final_modules'
[  OK  ] Finished Execute cloud user/final scripts.
[  OK  ] Reached target Cloud-init target.
[   64.677449] vyos-router[2068]: Waiting for NICs to settle down: settled in 0sec..
[   68.909990] vyos-router[2068]: Mounting VyOS Config...done.
[   83.116085] vyos-router[2068]:  migrate system configure.

Also tested via QEMU - the same result, login prompt is not displayed

Details

Version: vyos-2026-03-011-rolling
Is it a breaking change?: Unspecified (possibly destroys the router)
Issue type: Bug (incorrect behavior)

Related Objects
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Status	Subtype	Assigned	Task
Resolved	BUG	c-po	T8375 arm64: missing support for ttyAMA0 console interfaces
Resolved	BUG	c-po	T8541 Lately the TPM smoketests have been failing
Resolved	BUG	jestabro	T8976 Avoid overwriting choice of tty on image install

Event Timeline

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Viacheslav triaged this task as Normal priority.Mar 11 2026, 3:31 PM

a.kudientsov renamed this task from ARM64: login prompt doesn't appear on ttyAMA serial console on raw images to ARM64: login prompt doesn't appear on ttyAMA serial console.Mar 11 2026, 3:37 PM

The default config for an image targeted for such platforms must contain set system console device ttyAMA0, which I think is still missing there.

c-po renamed this task from ARM64: login prompt doesn't appear on ttyAMA serial console to arm64: missing support for ttyAMA0 console interfaces.Mar 26 2026, 3:40 PM

c-po changed the task status from Open to In progress.

c-po claimed this task.

https://github.com/vyos/vyos-1x/pull/5092

jestabro mentioned this in T8445: Extend config activation system.Mar 30 2026, 1:34 AM

https://github.com/vyos/vyos-build/pull/1155

https://github.com/vyos/vyos-documentation/pull/1820

c-po mentioned this in rVYOSONEXddc8b0420369: T8375: general import cleanup on the way to serial activation.Apr 14 2026, 2:24 PM

c-po mentioned this in rVYOSONEX36b18269ac64: xml: T8375: add CLI help for ttyAMA serial console interfaces.

c-po mentioned this in rVYOSONEXd2ad852ab439: vyos-router: T8375: rename "system" to "activate".

c-po mentioned this in rVYOSONEX51922535b795: serial: T8375: use boot activation script to define a serial console on the CLI.

c-po mentioned this in rVYOSONEX35db941bcf30: serial: T8375: add CLI option to explicitly set kernel console.

Restricted Repository Identity mentioned this in rVYOSONEX96573c5c3fa4: Merge pull request #5092 from c-po/kernel-serial-activation.Apr 14 2026, 2:24 PM