Also, 'set tagstack' in your ~/.vimrc.
-----Original Message-----
From: Kerl, John
Sent: Wednesday, May 28, 2003 12:02 PM
To: Kerl, John; 'Brian S. Park'
Cc: 'linuxppc-embedded at lists.linuxppc.org'
Subject: RE: getting Linux working on IBM Walnut demo board
Ooooops, not reading your message well enough.
Of course you're using NFS, not RAM disk.
You can do a couple things:
* cd into your export directory and make sure
stuff is really there -- this is the Linux
host looking at itself.
* A nice diagnostic is to use another Linux PC,
mounting the first Linux host's export directory
over NFS. I.e. the second PC is the NFS client,
rather than the board.
* You can resort to printk's ... you might do the
following to assist in this:
- cd to kernel directory
- make tags
- Set up your editor for tags, e.g. in vim,
.vimrc has a 'set tags=./tags' line in it.
- vim init/main.c, find the function you want,
then control-] to dive in, control-t to
come back out.
-----Original Message-----
From: Kerl, John [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 28, 2003 11:57 AM
To: 'Brian S. Park'
Cc: 'linuxppc-embedded at lists.linuxppc.org'
Subject: RE: getting Linux working on IBM Walnut demo board
Brian:
You can get the "all network ports in use" error when
there do not exist /dev/ttyp* -- these are the pseudo-ttys
needed by telnet. You can mknod them; but I would double-check
your /dev directory. If you're using ELDK, /dev/ttyp* should
already be there.
The "Unable to open an initial console" message is in init/main.c,
and occurs when /dev/console can't be opened. Again, this points
suspicion at your filesystem.
To peek at your RAM disk, you can do the following (as root):
# gunzip < ramdisk.image.gz > ramdisk.image
# mkdir foo
# mount -o loop ramdisk.image foo
and then cd into foo and ls, etc. Don't forget
to then do:
# umount foo
# rmdir foo
# rm ramdisk.image
-----Original Message-----
From: Brian S. Park [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 28, 2003 11:53 AM
To: Eran Mann
Cc: linuxppc-embedded at lists.linuxppc.org
Subject: Re: getting Linux working on IBM Walnut demo board
Eran,
Thank you very much. Now the kernel comes up and I can ping the target. :)
Now to the next problem. I'm booting with NFS root file system. Below is
the bootargs that I'm using.
>bootargs=root=/dev/nfs rw nfsroot=192.168.1.78:/home/ELDK/ppc_4xx
console=ttyS0,115200
> console=tty0
ip=192.168.1.146:192.168.1.78:192.168.1.2:255.255.255.0:netusb::off
exports file on my development station has
>/home/ELDK/ppc_4xx netusb(rw,no_root_squash)
/home/ELDK/ppc_4xx is where ELDK installed the target file system on my
development machine.
Even though I can now ping the target, I can't telnet to it. I get the
following error.
>telnet netusb
>Trying 192.168.1.146...
>Connected to netusb.
>Escape character is '^]'.
>telnetd: All network ports in use.
>Connection closed by foreign host.
Is this normal? Do I now need to configure the target file system to enable
telnet?
Or is there still something wrong with my bootargs?
Also, after the kernel comes up, I can no longer type any command through
the serial terminal.
The following the message at the end of kernel boot. It says it was unable
to open the console.
>IP-Config: Complete:
> device=eth0, addr=192.168.1.146, mask=255.255.255.0, gw=192.168.1.2,
> host=192.168.1.146, domain=, nis-domain=(none),
> bootserver=192.168.1.78, rootserver=192.168.1.78, rootpath=
>NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
>Looking up port of RPC 100003/2 on 192.168.1.78
>Looking up port of RPC 100005/1 on 192.168.1.78
>VFS: Mounted root (nfs filesystem).
>Freeing unused kernel memory: 76k init
>Warning: unable to open an initial console.
Any help will be appreciated.
Thank you
Brian
At 12:53 PM 5/28/2003 +0300, you wrote:
>Hello Brian,
>You can try what I suggested in:
>http://lists.linuxppc.org/linuxppc-embedded/200305/msg00222.html
>i.e. in the file arch/ppc/platforms/walnut.h to replace
>typedef struct board_info {
>...
>} bd_t;
>
>with:
>#include <asm/ppcboot.h>
>Hope that helps,
> Eran.
===============================================================
Brian S. Park brian at corelis.com (562) 926-6727 x143
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