"nextboot" for MBR slice?

[Paul Schenkeveld]

On Mon, Jul 30, 2012 at 10:21:23PM +0400, Lev Serebryakov wrote:
> Hello, Paul.
> You wrote 30 июля 2012 г., 20:17:27:
> 
> PS> Did you try to use boot0sio?  I run dozens of NanoBSD systems, most are
>   It strangely hangs up to 10 minutes on my net5501...

What kind of cable do you use, what terminal or terminal emulator and
what communication settings?

I never have problems with net5501 connected to a serial port on a
FreeBSD laptop or server (either standard sio port or FTDI USB/serial
converter) using a null-modem cable that also crosses modem control
lines:

  RxD --\ /-- RxD
         X
  TxD --/ \-- TxD

  CTS --\ /-- CTS
         X
  RTS --/ \-- RTS

  DSR -+   +- DSR
       |   |
  DCD -+\ /+- DCD
         X
  DTR --/ \-- DTR

(My favorite null-modem cables are the light blue flat telecom cables
and separate teledata RJ-45/DB9 converters that used to come with Cisco
routers but haven't seen them delivered with these routers lately.)

> PS> change the active partition.  Now (FB >= 8) one should use 'gpart set
> PS> -a active -i <slice>'.  The default slice reported during boot can be
>   Yep, it is exactly what I do...
> 
>   I'm  wonder, is it possible to switch to GPT "on the fly"... old gpt
> command has "migrate" operation, but current "gpart" doesn't have one.

That's probably not trivial to implment as a GPT table normally takes
more space than is available on a MBR device.

With kind regards,

Paul Schenkeveld