Hi all,
I'm trying to use three Compaq Deskpro 4000 as diskless clients
with LTSP 3 and a rom-o-matic tlan boot disk. One of the DCs runs
great. The other two have very slow graphics. If I move a dialog
box, it takes forever to refresh. Sometimes the whole session
just freezes up.
The only hardware difference I know of between the DCs is that
the good one has a 200MHz processor while the sluggish ones have
133MHz processors. At first I thought this could be the reason.
Then I compared boot messages from one machine to the next. I
noticed that the fast box's NIC was configured for FULL_DUPLEX
and the slow machines were using HALF_DUPLEX. Could this be the
reason for the slow graphics?
I want to force the NIC to use FULL_DUPLEX. What's the easiest
way to test this out?
I built a kernel and tried using mkelf-linux like this:
mkelf-linux --ip=dhcp --append="ether=0,0,0x0C,0x01,eth0"
--output=/tftpboot/lts/compaq3.nb --rootdir=/opt/ltsp/i386/
bzImage
I got the append parameter from /usr/src/linux/Documentation/networking/tlan.txt
That failed miserably. On boot up there were two messages that
stood out: "RAMDISK: Couldn't find valid ramdisk image starting
at 0." and "Warning: unable to open initial console"
Is there a simple way to pass parameters to the kernel? I checked
out the README in the ltsp_kernel source folder. Under DHCP is
states:
" The following lines in the /etc/dhcpd.conf file should do the
trick:
option option-128 e4:45:74:68:00:00;
option option-129 "NIC=ne IO=0x300";
The option-128 is a magic number. If that isn't present, then
all additional options will be ignored.
"
I'm a bit confused on these option lines. Is option-128 a
replacement for the "hardware ethernet" setting for the MAC
address of the client's NIC?
option-129 looks like it would be something like "NIC=tlan ..."
What words are reserved for setting the duplex ... DUPLEX=full?
Can I set duplex from within the dhcpd.conf file?
Hope this was clear enough. Let me know of you need more info.
Best regards,
Kevin Valentine
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