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Dracut can't mount root filesystem, stuck in debug shell

asked 2012-05-14 01:47:48 +0000

abhishekbh gravatar image

The Error

On my F16 LVM, I get the following messages on boot

dracut Warning: Can't mount root filesystem

mount: /dev/mapper/vg_root already mounted or /sysroot busy

Dropping to debug shell.

sh: can't access tty; job control turned off

This error has been reported before but always for different reasons.

How it occurred

I have a standard Fedora 16 LVM install. Before the error occurred, I installed some updates from the standard repositories. Then during usage, at some point my system froze, so I shut it down by holding down the power button on my laptop. Upon turning it on, this problem occurred.

What I can and cannot do

I have Ubuntu installed on the same machine outside the LVM. From here, I cannot mount the rootfs of the LVM, which I normally could do. When I try and mount it, I do not receive any errors, but only see a blank partition.

I can run fsck and a few other tools from the debug shell.

What I have tried

Since the error is that vg_root cannot be mounted since it's busy, I tried unmounting it manually, which works, and then remounting it. But I don't know how to resume the boot process from here on.

Any help?

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1 Answer

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answered 2012-05-14 10:21:40 +0000

This might help:

http://fedoraproject.org/wiki/HowtodebugDracutproblems#Usingthedracut_shell

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Asked: 2012-05-14 01:47:48 +0000

Seen: 9,481 times

Last updated: May 14 '12