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.