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From: Zdenek Kabelac <zdenek.kabelac@gmail.com>
To: LVM general discussion and development <linux-lvm@redhat.com>,
	Vishal Chourasia <vishalc@linux.ibm.com>
Subject: Re: [linux-lvm] Trouble Booting Custom Kernel with QEMU: dracut-initqueue timeout waiting for /dev/sysvg/root
Date: Wed, 30 Aug 2023 16:31:40 +0200	[thread overview]
Message-ID: <3cc29b24-8283-478a-bce2-56c392556391@gmail.com> (raw)
In-Reply-To: <fa1ed1e4-9eae-f921-1506-87b46c13ad1f@linux.ibm.com>

Dne 30. 08. 23 v 8:40 Vishal Chourasia napsal(a):
> Hi All,
> 
> I hope this email finds you well. I am currently facing an issue with
> booting a VM using a custom-compiled kernel and would appreciate your
> expertise on the matter.
> 

Hi

Not really sure how this relates to 'lvm2' yet - your kernel 'stuck' seems to 
be caused by the inability to switch to 'rootfs'  - which should be located on 
/dev/vda3  (according to your qemu exec line) - but kernel panics
reports that device does not have recognizable filesystem.

There seems to be no lvm2 involved at all so far.


> ### Problem Description
> I have downloaded the `Fedora-Server-KVM-38-1.6.x86_64.qcow2` image and
> successfully booted it using `qemu-system-x86_64`. However, when I try
> to boot this VM with a custom-compiled kernel using the `-kernel` flag,
> it fails to boot. The root filesystem is on LVM, and it seems the kernel
> needs to activate volume groups before mounting the root filesystem.

If you believe the filesystem is really on LVM and your /dev/vda3 is just a PV 
- then your boot line is wrong - and you need to be using different naming -
possibly something like:
root=/dev/vgname/lvrootname rd.lvm.lv=vgname/lvrootname

dracut that needs to include lvm2 code and be able to activate such LV prior 
switch to rootfs  (having somewhere inside  lvchange -ay vgname/lvrootname)

But it's not really clear how have you moved from your /dev/vda3 to
something on top of lvm2...

Regards

Zdenek

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  reply	other threads:[~2023-08-30 14:33 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-30  6:40 [linux-lvm] Trouble Booting Custom Kernel with QEMU: dracut-initqueue timeout waiting for /dev/sysvg/root Vishal Chourasia
2023-08-30 14:31 ` Zdenek Kabelac [this message]
2023-08-30 22:40   ` Vishal Chourasia
2023-08-31 10:14     ` Zdenek Kabelac
2023-09-07  7:30       ` Vishal Chourasia

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