Message ID | 99827.1231712979@turing-police.cc.vt.edu |
---|---|
State | RFC, archived |
Delegated to: | David Miller |
Headers | show |
On Sun, 2009-01-11 at 17:29 -0500, Valdis.Kletnieks@vt.edu wrote: > On Sun, 11 Jan 2009 13:49:37 PST, David Miller said: > > From: Valdis.Kletnieks@vt.edu > > Date: Sun, 11 Jan 2009 11:48:22 -0500 > > > > > One unanswered question: What do we expect the system to do if they have this > > > patch, TIGON3=y, FIRMWARE_IN_KERNEL=n, and configure a netconsole for boot > > > messages? I'm *hoping* the answer is "the netconsole doesn't come up at boot, > > > but can be re-enabled via the /sys/kernel/config/netconsole interface after > > > you've done an 'ifconfig eth0 up' or similar, or do a 'modprobe netconsole'. > > > > > > Those seem like reasonable semantics to me - anybody got a different opinion? > > > > Even better, how about nfsroot? There is no "later", either you > > can mount to root filesystem or you fail. > > I don't see any sane way for an nfsroot to work unless you've built the kernel > with TIGON3=y, and FIRMWARE=y. Anything else is just crazy talk. For that > case, I'd suggest we just do this: > > Signed-off-by: Valdis Kletnieks <valdis.kletnieks@vt.edu> > > --- linux-2.6.28-mmotm0109/Documentation/filesystems/nfsroot.txt.dist 2008-12-24 18:26:37.000000000 -0500 > +++ linux-2.6.28-mmotm0109/Documentation/filesystems/nfsroot.txt 2009-01-11 17:27:31.000000000 -0500 > @@ -30,6 +30,9 @@ In the networking options, kernel level > along with the types of autoconfiguration to support. Selecting all of > DHCP, BOOTP and RARP is safe. > > +In addition, your network interface driver must be selected as built-in, > +and if the card is a Tigon3 or other card that requires a firmware load > +to become functional, you need to select FIRMWARE_IN_KERNEL. Yeah, but it's not FIRMWARE_IN_KERNEL in the general case -- that's just for a handful of 'speshul' legacy drivers. In the general case it's the CONFIG_EXTRA_FIRMWARE option which needs to be set to include the required firmware.
--- linux-2.6.28-mmotm0109/Documentation/filesystems/nfsroot.txt.dist 2008-12-24 18:26:37.000000000 -0500 +++ linux-2.6.28-mmotm0109/Documentation/filesystems/nfsroot.txt 2009-01-11 17:27:31.000000000 -0500 @@ -30,6 +30,9 @@ In the networking options, kernel level along with the types of autoconfiguration to support. Selecting all of DHCP, BOOTP and RARP is safe. +In addition, your network interface driver must be selected as built-in, +and if the card is a Tigon3 or other card that requires a firmware load +to become functional, you need to select FIRMWARE_IN_KERNEL.