Re: Bug#408588: Debian on SGI Altix IA-64
On Mon, Jan 29, 2007 at 09:39:08AM -0500, St?phane Larose wrote:
> On Saturday 27 January 2007 23:21, Joey Hess wrote:
> > I'm not 100% sure, but I think that this is happening before udev gets a
> > chance to make it, since it's prior to init starting.
>
> This is correct. And after init, udev create the /dev/ttySG0 device correctly.
>
> > Seems like we could fix it by making init-udev-devices skip creation of
> > /dev/tts/0, if running on the altix. What would be a good way to detect
> > that machine?
>
> I don't know if this is a good way but if the /proc/sgi_sn/ directory exist,
> it means that the 'sn' driver is loaded which is SGI architecture.
Is /proc mounted at this point? If so, then that's probably the best
detection method available for etch. We could do something like [1]
and not create the serial devices - but that feels like a hack to
me. What if someone put a serial pci card in one of these machines and
wanted to use that as a console?
Is there a way we can support both? What if we create a ttySG0 file in
init-udev-devices and pass console=ttySG0 to the kernel[2]?
If that works, I don't think its a big deal to ask altix users to pass
console=ttySG0 to the installer - we could even put it in the elilo
help menu (which isn't localized).
St?phane: can you test these two patches and report back what works?
If /proc isn't mounted at this point, you might remove the if
statement around [2].
[1]
Index: src/lib/debian-installer/init-udev-devices
===================================================================
--- src/lib/debian-installer/init-udev-devices (revision 44839)
+++ src/lib/debian-installer/init-udev-devices (working copy)
@@ -22,7 +22,7 @@
makedev 600 /dev/tty"$i" c 4 "$i"
done
makedir 755 /dev/tts
-for i in 0 1; do
+[ -d /proc/sgi_sn ] || for i in 0 1; do
makedev 600 /dev/tts/"$i" c 4 "$(($i + 64))"
makedev 600 /dev/ttyS"$i" c 4 "$(($i + 64))"
done
[2]
Index: src/lib/debian-installer/init-udev-devices
===================================================================
--- src/lib/debian-installer/init-udev-devices (revision 44839)
+++ src/lib/debian-installer/init-udev-devices (working copy)
@@ -26,3 +26,7 @@
makedev 600 /dev/tts/"$i" c 4 "$(($i + 64))"
makedev 600 /dev/ttyS"$i" c 4 "$(($i + 64))"
done
+# SGI Altix consoles
+if [ -d /proc/sgi_sn ]; then
+ makedev 600 /dev/ttySG0 c 204 40
+fi
--
dann frazier
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