Sir or Madam,
I am in a new project writing software for
embedded apps. We use a single board computer
consisting of (a) linux (b) syslinux boot loader
(c) compact flash file system (d) x86 processor.
(see www.embeddedx86.com) (e) other HW and SW.
Using vendor provided files, I can easily prepare
a compact flash (CF) system which boots 2.4.23
linux just fine. I can telnet in and so on and
so forth. The CF is 1GB in size.
One of my tasks is to take the magic out of the
process of putting new kernels on to the CF and
regarding the building of new kernels themselves.
This means bash scripts and documentation etc.
I have done most of that but ...
According to the vendor, replacing an existing
kernel on the CF requires two and just two steps.
To be specific, I start with a perfectly fine
1GB CF consisting of 2.4.23.
Using RH9.0, I build a kernel for 2.4.25. Now I
want to replace 2.4.23 on the CF with 2.4.25 on
my RH9.0 box. According to the vendor I must:
(*) replace the bzImage with the bzImage from
the new kernel. This amounts, after mounting
the CF, to just a single ``cp" command.
(*) also replace the /lib/modules tree on the
CF with the /lib/modules tree from the new
kernel. It is convienent to issue the command
make modules_install INSTALL_MOD_PATH=<dir>
and then remove the /lib/modules tree on the
CF and then recursively copy the new tree
under <dir>/lib/modules/<kernel-name>/*
When I do these steps, and reboot, my system now
displays the contents of display.txt (which is
part of syslinux) and then appears to hang. To
the best of my knowledge it never displayed this
menu previously and immediately booted 2.4.23.
(I made no other changes to an otherwise working
2.4.23 CF.)
I suspect that there is something woefully incomplete
about the install steps here. The above information
is already the best that they can give. Yes, believe
it or not.
Don't I have to deal with initrd (initial ram disk)?
System.map? Anything else?
Help!
Shane
=========================================================
Contents of syslinux.cfg:
[root at chef 1]# cat syslinux.cfg
SERIAL 1 115200
TIMEOUT 10
PROMPT 1
DEFAULT linux
DISPLAY display.txt
LABEL initrd
KERNEL bzImage
APPEND root=/dev/ram0 initrd=initrd.gz console=ttyS1,115200
devfs=nomount
LABEL linux
KERNEL bzImage
APPEND root=/dev/hda2 reboot=bios console=ttyS1,115200
LABEL nfs
KERNEL bzImage
APPEND console=ttyS1,115200 root=/dev/nfs
nfsroot=192.168.0.18:/home/mike/nfs/
nfsaddrs=192.168.0.50:192.168.0.18::255.255.255.0:epc:eth0:none
LABEL dos
KERNEL rom-dos.bss
# Add the following line to append for TS-3300 or TS-5300 Rev C or older
# hdb=none hdc=none hdd=none hde=none hdf=none hdg=none hdh=none
hdi=none hdj=none hdk=none hdl=none
# for TS-9500 with Compact Flash as IDE2 and VGA as console:
#1) add jumper for IRQ5 on TS-9500 on TS-3300 or TS-5300 only
#2) add "ide1=0x170,0x376,5" to APPEND line, remove
"hdc=none" if
present
#3) change console=ttyS1 to console=tty1
#NOTE: your logins are dependant on /etc/inittab not syslinux.cfg
