Re: Kernel panic - not syncing: Attempted to kill init!

[David F Barrera <dfbp@us.ibm.com>]

Ian,

One thing about RHEL 4 is that the devices in /dev seem to be created 
dynamically, at boot time.  When I mount the 'hdc1' partition and go to 
the /dev directory, there is nothing in it, as on a SuSE 9.0 or earlier 
Red Hat installs.  That is why I need an initrd, I suppose, to make or 
create those devices.

David

Ian Pratt wrote:

>>Derrick,
>>
>>I rebuilt the xenU kernel, with the devfs support disabled, and it makes 
>>no difference. It behaves in the same manner as the pre-built kernel 
>>that's included with the binary pack.  I am at a loss. I've been able to 
>>boot a kernel under xen on a SuSE Linux 9.0 machine, so I've had a 
>>little experience with this:-) 
>>    
>>
>
>David, earlier in the boot messages do you see the hdc1 partition
>being found when the partition check happens?
>
>You'll need to export the partition 'rw' eventually, but that's
>not your current problem.
>
>You might like to try exporting it as 'sda1' or something to see
>if that helps. Not sure why it would, but I've heard folklore
>along these lines. 
>
>Adding some more debugging to the linuxrc nash script might shed
>some light on the problem. 
>
>Also, what happens if you skip the initrd and try booting
>directly off the disk. I doubt there's anything in the initrd you
>need.
>
>Ian
>
> 
>  
>
>>Freeing unused kernel memory: 92k freed
>>Red Hat nash version 4.1.18 starting
>>Mounted /proc filesystem
>>Mounting sysfs
>>Creating /dev
>>Starting udev
>>Creating root device
>>Mounting root filesystem
>>mount: error 6 mounting ext3
>>mount: error 2 mounting none
>>Switching to new root
>>switchroot: mount failed: 22
>>umount /initrd/dev failed: 2
>>Kernel panic - not syncing: Attempted to kill init!
>> <0>Rebooting in 1 seconds..
>>
>>
>>David Barrera
>>
>>
>>Derrik Pates wrote:
>>
>>    
>>
>>>David F Barrera wrote:
>>>
>>>      
>>>
>>>>The distro I am using is  RHEL 4 Beta 2 (Red Hat Enterprise Linux 
>>>>Desktop release 3.90 (Nahant)
>>>>        
>>>>
>>>      
>>>
>>>>/dev/hdc1               /                       ext2    
>>>>defaults        1 1
>>>>        
>>>>
>>>      
>>>
>>>>LABEL=SWAP-hdc2         swap                    swap    
>>>>defaults        0 0
>>>>/dev/hda                /media/cdrom            auto    
>>>>pamconsole,fscontext=system_u:object_r:removable_t,ro,exec,noauto,managed 
>>>>0 0
>>>>        
>>>>
>>>      
>>>
>>>># disk = [ 'phy:hda1,hda1,r' ]
>>>>disk = [ 'phy:hdc1,hdc1,r' ]
>>>>        
>>>>
>>>Well, the configuration of the virtual disk looks correct; the swap 
>>>might disagree with it, but that shouldn't appear until later in the 
>>>boot process. Perhaps it's an interaction with devfs? Do you have 
>>>devfs enabled in your xenU (unprivileged domain) kernel? This gave me 
>>>fits when I first began using Xen, mostly because it seems that the 
>>>xenU prebuilt kernel that's included with the binary pack has devfs 
>>>support enabled, and this breaks things. The only other possibility I 
>>>can think of is that you need to change the block-device import to 
>>>read-write.
>>>
>>>      
>>>
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>>
>
>
>
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