I had RTLinux 0.9 installed over RedHat 5.2 on hdb1... (hda is a DOS drive).
This system worked fine for almost two years.
I installed RH 6.2 as follows:
1. install new HD in computer (hdc)
2. boot old system
3. partition new drive with fdisk
4. boot Red Hat 6.2 CD-ROM and install on hdc1
The (relevant) contents of lilo.conf are (yes, I ran lilo after the last
changes)
boot=/dev/hda
map=/boot/map
install=/boot/boot.b
prompt
timeout=200
linear
default=rtlinux-v3
image=/boot/RTzImage
label=rtlinux-v3
initrd=/boot/initrd-2.2.14-5.0.img
read-only
root=/dev/hdc1
image=/boot/vmlinuz-2.0.36-0.7
label=rtlinux-v1
root=/dev/hdb1
initrd=/boot/initrd-2.0.36-0.7.img
read-only
other=/dev/hda1
label=dos
There is a weird "crosstalk" between the configuration of the two systems.
Nothing in the old system has (to the best of my knowledge) changed.
When I had MSDOS-FileSystem installed as a module in the new system,
whenever I boot the old system (before or after installing RTLinux v3 over
RH 6.2) I got the error "msdos fs not supported" trying to mount the DOS
partitions of hda. The new system boots just fine.
When I reconfigured the new system to compile MSDOS support into the kernel,
these problems went away, but ...
The old system has NE2000 support as a module. In the original new system I
had it this way too and both systems accessed the ethernet card. When I
reconfigured the new system to compile this into the kernel -- since the
type of NIC wasn't going to change -- I'm suddenly getting
"unresolved symbol in .../ne.o"
during bootup and after boot, when I try to manually install the driver
('insmod ne') I get
"unresolved symbol ei_open
unresolved symbol ether_init
..."
When each system is booted, 'df' shows the right partition as '/' and 'uname
-a' gives the expected.
Something in the configuration of the new system is carrying over into the
boot process when the old system is booted.
I'm stumped and I'm open to all suggestions, hints, and expressions of
sympathy.
Norman Dresner
Fellow Systems Engineer
& (SGI) Advanced Signal Processing Laboratory Administrator
Radar Systems Engineering Department
Electronic Systems and Sensors Segment
Northrop Grumman Corporation
MS 520
Box 746
Baltimore MD 21203
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