Re: kbdmux support for ddb and mountroot?

Nate Lawson wrote:
Maxim Sobolev wrote:
Works here to specify alternate root just fine. I am missing something?

-Maxim

Nate Lawson wrote:
kbdmux does not currently support ddb and mountroot in both -current and 6-stable. This means that if you get a panic, no backtrace or other interaction is possible. Also, if your /etc/fstab is wrong, no way to specify an alternate root.

Are there any plans to improve this? What needs to be completed to get back to previous support for these features?

Thanks,

I'm using a PS/2 keyboard on one machine (RELENG_6) and a built-in PS/2 keyboard on my laptop. Neither register any keystrokes in DDB or with alternate root unless I disable kbdmux with the tunable.

USB keyboard works just fine here (7-CURRENT) for alternate root selection via kbdmux. I don't know if there are some differences in kbdmux behavior between RELENG_6 and HEAD.

-Maxim
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Relevant Pages

  • Re: kbdmux support for ddb and mountroot?
    ... Maxim Sobolev wrote: ... Nate Lawson wrote: ... This means that if you get a panic, no backtrace or other interaction is possible. ... Neither register any keystrokes in DDB or with alternate root unless I disable kbdmux with the tunable. ...
    (freebsd-current)
  • Re: kbdmux support for ddb and mountroot?
    ... Works here to specify alternate root just fine. ... Nate Lawson wrote: ... This means that if you get a panic, no backtrace or other interaction is possible. ... Also, if your /etc/fstab is wrong, no way to specify an alternate root. ...
    (freebsd-current)