Re: [PATCH] kill prom_printf

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Tue, 17 Jun 2003, Jan-Benedict Glaw wrote:

> If we constantly add (new) kernel arguments, we may at some time face
> the problem that the calling PROM/firmware/whatever cannot handle a
> command line which is *that* long. IIRC DECstations have a quite limited
> prompt length. This hurts for "3/tftp():vmecoff root=/dev/ram
> nfsroot=/nfsroot/decxxxx ip=bootp console=ttyS2 console=tty0
> early_printk=arc"

 That has already been trained by the Alpha people.  I think we simply
need a bootloader capable of handling network boots -- with the REX
firmware it shouldn't be that difficult.  For disk loads I suppose it's
already handled by delo (I haven't checked).  We don't have a tape loader,
do we?

 BTW, you may omit "nfsroot=" above if you send a root path in a BOOTP
reply and also "ip=bootp" shouldn't be necessary if the causing bug was
fixed (I have a temporary patch).  The limit is 37 characters for the
"boot" variable (due to the limitation of the BBU RAM) and a bit higher
for an explicitly typed in command line (I think it's 80 characters, but I
can't remember for sure). 

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +



[Index of Archives]     [Linux MIPS Home]     [LKML Archive]     [Linux ARM Kernel]     [Linux ARM]     [Linux]     [Git]     [Yosemite News]     [Linux SCSI]     [Linux Hams]

  Powered by Linux