action #49703
closed
[functional][y][timebox:8h] Evaluate how to switch between TTYs in specific scenarios (hyperv, ssh,vnc)
Added by JRivrain about 5 years ago.
Updated about 4 years ago.
Description
Motivation¶
Currently There are several cases where we cannot switch to a root console when we are in an installation, however being able to switch to a console can be very useful.
This is a follow-up of poo#45020 as we had to exclude some remote installations for that reason.
Acceptance criteria¶
- AC1: Cases where a switch to console is not possible at all are identified. At the moment that we know about, vnc, ssh.
- AC2: Adapt the current select_console mechanism to those particular cases.
Further details¶
It seems so far that the only cases where we cannot switch to root are on hyperv, and for remote installations (remote_ssh_controller and remote_vnc_controller). But more verification would be wise.
- Related to action #45020: [functional][y] tests should detect that the wrong desktop will show up added
- Related to action #49622: [functional][y] Verify the wrong desktop will show up added
Precision:¶
The way to switch between ttys is:
select_console 'install-shell';
select_console 'installation';
- Subject changed from [functional][y] Evaluate how to switch between TTYs in more, or all cases. to [functional][y][timebox:8h] Evaluate how to switch between TTYs in specific scenarios (hyperv, ssh,vnc)
- Description updated (diff)
- Status changed from New to Workable
- Category set to Spike/Research
- Status changed from Workable to In Progress
Extract of lib/susedistribution.pm:
=head2 hyperv_console_switch
hyperv_console_switch($console, $nr)
On Hyper-V console switch from one console to another is not possible with the general
'Ctrl-Alt-Fx' binding as the combination is lost somewhere in VNC-to-RDP translation.
For VT-to-VT switch we use 'Alt-Fx' binding, however this is not enough for X11-to-VT
switch, which requires the missing 'Ctrl'. However, in X11 we can use chvt command
to do the switch for us.
This is expected to be executed either from activate_console(), or from console_selected(),
test variable C works as a mutually exclusive lock.
Requires C name, an actual VT number C is optional.
=cut
There seem to be no way to switch between ttys with shortkeys for hyperv and ssh installs, not sure yet about vnc. But one way to open a console that should work in all cases is to open a new ssh session.
- Assignee deleted (
JRivrain)
I bravely un-assign myself from this ticket to let someone more experienced with perl and openqa to take over, I am not yet confident enough to touch this.
Examples of particular cases: ssh, vnc, hyperv
My conclusion so far when we have to switch to install_shell:
- make sure to enable ssh in bootloader on the guest
- open another TTY on the remote controller, from which we open a new ssh session to the guest. This should work in all particular cases.
- Status changed from In Progress to Workable
I will take a look here and create task for AC2, in 8h it's definitely not possible to do.
- Status changed from Workable to Feedback
- Status changed from Feedback to Resolved
- Due date set to 2019-05-07
due to changes in a related task
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