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Old 07-25-2005, 04:57 AM   #1
bruse
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kernal panic due to can not mount ext3.


mandrake 10.0
i was working with mandrake 10.0 very well.
for some unknown reason i can not boot in to linux because the kernal will panic.

the error may be due to can not able to mount ext3 that is root file system.

so pls help me how to overcome this??
 
Old 07-25-2005, 05:14 AM   #2
Nathanael
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what exactly is the message of your kernel panic?
 
Old 07-25-2005, 05:23 AM   #3
bruse
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it is something related to the mount failed.
it is trying to mount the root partition by using flag but it failed.
so how should externaly mount by using or mention in a file.??
 
Old 07-25-2005, 05:28 AM   #4
Nathanael
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Quote:
Nathanael wrote:
what exactly is the message of your kernel panic?
means:
what EXACTLY is it saying??

not:
"what is it related to"
 
Old 07-25-2005, 05:46 AM   #5
bruse
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that is mount has failed.
 
Old 07-25-2005, 05:52 AM   #6
Nathanael
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right! so when you boot your computer and you get the kernel panic your screen looks like this?
[code]kernel panic,
mount has failed[/quote]
ok
that is fine!

did you recompile your kernel?
is your fstab using entries like /dev/hda1 or LABLE=/ ?
did you modify your partition table?
did you edit fstab?
could you have a dodgy hdd?
can you boot with knoppix (or any live cd) and mount from there?
 
Old 07-25-2005, 03:39 PM   #7
mebaro
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I'm having a similar problem on my Dell 2850. I am trying to compile a custom XEN kernel to match the hardware, and have to boot using an image to load drivers first. My boot process ends in a kernel panic with a series of messages stating:

/lib/ext3.o: unresolved symbol vfs_follow_link_xxx
/lib/ext3.o: unresolved symbol journal_block_per_page_xxx
... and alot more similar messages...

/sbin/insmod failed
... unable to mount /dev/sda3

I'm sorry for the vagueness, but that's as much as I can remember right now.

I am using the same initrd file that the base RH ES 3 release boots from. I have had other instances where I was able to boot a custom XEN kernel using this same image. The image file is required because my disks are on a hardware raid 5 partition and the megaraid2 module has to be loaded before I can mount root.

My question is...What is the correct way to troubleshoot my kernel build?

I'm new at this and so far I have been quessing as to what options work in the configuration file and I end up with a kernel that hangs frequently. I'm using the VGA monitor for the console, I don't have a serial hookup so most of the boot messages disappear and I'm left with only the last page of messages.

Any tips on troubleshooting the kernel build would be gfreatly appreciated.
 
Old 07-25-2005, 04:40 PM   #8
Nathanael
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ext3 extntion needs to be built into the kernel[*] (not [M] which stands for Module)!!
this is because of the order that things happen in during boot:
loading kernel, fstab, loading modules, loading services
so if ext3 support is a module, and fstab uses an ext3 drive you have a problem.
 
  


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