>>>>> "AB" == Arne Babenhauserheide <[EMAIL PROTECTED]> writes:
[...]
AB> And he was quite impressed, since he could directly see the
AB> potential in that.
AB> Even though I did it over X11-forwarding with a possible command
AB> rate of 2 per minute or so.
What purpose did X11 actually serve in this case?
When running Linux-based systems in Qemu, I usually configure
Qemu to ``connect'', say, COM1 (on guest) and /dev/tty (on
host), while passing `console=ttyS0' to Linux, like:
$ qemu -no-kqemu \
-nographic -monitor null -serial /dev/tty \
-cdrom .../debian-4.0-r0-etch-2007-04-07T11\:40-i386-binary-1.iso \
-hda .../target-in-qemu.image \
-kernel
.../debian-4.0-r0-etch-2007-04-07-i386-binary-1/install.386/vmlinuz \
-initrd
.../debian-4.0-r0-etch-2007-04-07-i386-binary-1/install.386/initrd.gz \
-append 'console=ttyS0 priority=low netcfg/disable_dhcp=true
DEBIAN_FRONTEND=text'
Linux version 2.6.18-4-486 (Debian 2.6.18.dfsg.1-11) ([EMAIL PROTECTED]) (gcc
version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #1 Wed Feb 21 15:25:16
UTC 2007
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000008000000 (usable)
BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved)
128MB LOWMEM available.
DMI not present or invalid.
ACPI: PM-Timer IO Port: 0xb008
...
In particular, this configuration allows for Qemu to be started
from within the `screen' session, with all the benefits it gives
(the ability to detach the session and attach it possibly from a
different terminal, logging, scroll buffer, etc.) Besides, the
speed penalty for the serial port emulation seems to be much
lower than the one for the VGA emulation.
I vaguely recall that GNU Mach had no (or broken?) support for
serial console, does it still apply? I had planned to suggest
GNU/Hurd as a topic for the (not yet started) local ``On
software'' students' meeting, and the ability for a GNU/Hurd
system to be run with ``virtual'' serial console (as provided by
Qemu) could become quite handy.
[...]
