On Mar 9, 2007, at 12:21, John R Pierce wrote:
this also explains why I could never get more than a couple ports
working on a 8 port card I picked up to use as a unix server serial
console controller.
Yup, and it also explains all the behavior I've seen.
and, yeah, if I can request CentOS Plus kernel consider supporting
more serial ports, chalk me in!
Me too. I just checked, and it appears that the CentOS Plus kernel
does not have the additional ports configured by default. So I bit
the bullet and started to build my own kernel. I had the kernel-
devel package installed for my current kernel. I did a "make
xconfig" in /usr/src/kernels/2.6.9-42.0.10.EL-i686 (after doing a
"yum install qt-devel") and changed two options under Device Drivers -
> Character devices -> Serial drivers:
1. Changed "Maximum number of non-legacy 8259/16559 serial ports"
from 4 to 12
2. Enabled "Support more than 4 legacy serial ports" under "Extend
8250/16550 serial driver options"
I saved the config, but when I do a make, I get the following error:
# make
CHK include/linux/version.h
SPLIT include/linux/autoconf.h -> include/config/*
CHK include/asm-i386/asm_offsets.h
HOSTCC scripts/genksyms/genksyms.o
HOSTCC scripts/genksyms/lex.o
HOSTCC scripts/genksyms/parse.o
HOSTLD scripts/genksyms/genksyms
CC scripts/mod/empty.o
HOSTCC scripts/mod/mk_elfconfig
MKELF scripts/mod/elfconfig.h
HOSTCC scripts/mod/file2alias.o
HOSTCC scripts/mod/modpost.o
HOSTCC scripts/mod/sumversion.o
HOSTLD scripts/mod/modpost
HOSTCC scripts/kallsyms
HOSTCC scripts/pnmtologo
HOSTCC scripts/conmakehash
make[1]: *** No rule to make target `init/main.o', needed by `init/
built-in.o'. Stop.
I even tried to re-install the kernel-devel RPM to no avail.
Granted, I've never had to rebuild a CentOS kernel before, so maybe
I'm missing some steps. But I thought all you needed to do was "make
xconfig" (or "make menuconfig") followed by a make.
Alfred
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