Re: Installing ppp/pppd in arm-linux

[Ralph Siemsen <ralphs@xxxxxxxxxxxxx>]

Nathan M wrote:

> [root@ARMCore root]$ pppd call ac775
> pppd: In file /etc/ppp/peers/ac775: unrecognized option '/dev/modem'

This is likely a typo in the config file.  It should probably read:
DEVICE=/dev/modem
or something like that.

> I checked and /dev/modem does not exist, I believe this is due to an
> issue initializing a serial port (UART) to the PCMCIA device because
> of another error message I get when booting Linux.
>
> ---code----------------------------------
> Starting pcmcia Starting PCMCIA services: cardmgr.
> cardmgr[465]: starting, version is 3.1.22
>
> Starting inet cardmgr[465]: watching 2 sockets
> cardmgr[465]: initializing socket 1
> cardmgr[465]: socket 1: AC775 Network Adapter R1
> Starting INET services:  inetdcardmgr[465]: executing: 'modprobe serial_cs'
> cardmgr[465]: + modprobe: /lib/libc.so.6: version `GLIBC_2.2.3' not
> found (required )

You modprobe binary won't run, same problem as ppp, you have mixed up 
glibc versions.

> cardmgr[465]: modprobe exited with status 1
> cardmgr[465]: module /lib/modules/2.6.7-armcore/pcmcia/serial_cs.o not available
> cardmgr[465]: bind 'serial_cs' to socket 1 failed: Invalid argument

This is simply cardmanager complaining because modprobe didn't work.  It 
doesn't really mean that serial_cs is unavailable.   If you can isnmod 
it manually then its fine.

>  There is however an
> issue with the part of this message that reads "module
> /lib/modules/2.6.7-armcore/pcmcia/serial_cs.o not available" (the
> directory /lib/modules/2.6.7-armcore/pcmcia/ is completely empty), I
> am indeed missing serial_cs.o in my /lib/modules directories.  It
> appears that I do have a serial_cs.c in my kernel source from which I
> compiled this image from, but for some reason it never made me a
> serial_cs.o (perhaps this was a neccissary menuconfig option that was
> off by default?).  In any case, I could use some suggestions as to
> what the easiest procedure would be to obtain or create a serial_cs.o
> compatible with the 2.6.7 kernel?
>
> I've already tried "arm-linux-gcc -Wall serial_cs.c -o serial_cs.o"
> with lots of errors

Type "make menuconfig" and drill down to PCMCIA area, enable it there, 
then rebuild and reinstall the kernel modules.  Where did you get your 
kernel from?  Is your serial port really on a PCMCIA card?

-R

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