panic at mounroot

Justin C. Sherrill justin at shiningsilence.com
Mon Jun 28 20:22:40 PDT 2004


I installed to a second drive (ad1) in a system tonight.  Everything
went normally, and I used 'boot0cfg -B -b /boot/boot0 ad0' to install a
boot menu. 

On rebooting, the boot gets all the way to the point where it sees
disks, and then can't find the disk from which to mount the hernel.  I
get the mountroot> prompt, but specifying ufs:/dev/ad1s1a doesn't work
for locating the kernel.  Having repeated this several times, I found
that mountroot will panic at what seems to be random times - sometimes
right away after a bunch of times slapping return, or later.  

Here's what I get: 
mountroot>
panic: Root mount failed, startup aborted
panic(c04b95f0,c0485fd8,5ef000,c05e4d84,c028d901) at panic+0x84
panic(c0447ea0,c04b95f0,c0485fd8,c05e4d98,c0245608) at panic+0x84
vfs_mountroot(0,5e1c00,5ef000,0,c0137d3c) at vfs_mountroot+0xa1
mi_startup(5e1000,ff800000,c04f912c,c05e4c08,c05e4bf8) at mi_startup+0x90 
begin() at begin+0x43
Debugger("panic")
Stopped at Debugger+0x34:   movb     $0,in_Debugger.342

Ooh, looking at hexidecimal makes me sleepy.  The LiveCD boots fine, so
I'm suspicious of my older drive that's sitting there as ad1, but not
that sure. 





More information about the Bugs mailing list