Red Hat Bugzilla – Bug 45767
'reboot' causes linux fails to boot
Last modified: 2013-07-02 18:55:03 EDT
From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.5; Windows NT 5.0)
Description of problem:
When I use "reboot" to restart my RedHat 7.1 (on Compaq Presario 1266,
NeoMagic 128 XD (MM2160)), the system restarts, and starts loading kernel,
then I see some funky color characters on screen, then the boot seems
stopped, system is hang and I have to use "Power Off" button to restart
However, if the system is bootup from power on I never see this problem.
It seems to me that "reboot" does not cleanup something (which I don't
Steps to Reproduce:
1. boot up Linux system (RedHat 7.1)
2. Logon as "root" and type "reboot"
3. After system reboot and LILO, system hangs after "Loading kernel..."
with random garbage color characters on screen.
Actual Results: It happened again.
Note: "reboot" worked perfectly when I used RedHat 6.x and 7.0
"reboot" sometimes causes "LILO" string does not display completely. This is
kind of random, so far I saw these cases:
"L LO" (the first 'L' is in green).
But they all hang when system tries to load kernel.
If I use
"vga=788", then the system loads the kernel, but fails/hangs later, one time
was when it detects USB devices, the other one is when it's about to mount
If I choose "Windoze 98" (dual-boot) from the problematic LILO, the system
seems recovered for Windoze 98SE.
This bug report sounds like it has absolutely nothing to do with the
usermode package whatsoever. It sounds more like a kernel problem,
or more likely really broken hardware or misconfigured BIOS or bad
RAM or something.
Arjan, your thoughts?
Hmmm, looks weird but I agree with Mike that it's not a fault of
reboot. It's very hard for me to reproduce the problem and it seems to
me that this issue is pretty hardware specific. If something like this
happens again to you with a recent release and can be reproduced,
please report it again. Thanks,