Hi Roman,
Someone used virt-v2v to convert a Windows 2016 guest, and then tried
updating it to a later version (tried 2019 & 2022), and the update
doesn't work.
https://issues.redhat.com/browse/MTV-2256
After some investigation it seems it might be due to this change from
nearly 10 years ago:
h
On Tue, Apr 08, 2025 at 11:34:40AM -0400, Cole Robinson wrote:
> Hi Rich, I've consistently been hitting issues with guestfs-tools
> builds. I have workarounds but they are annoying.
>
>
> 1) With a fresh checkout I run:
>
> $ git submodule init
> $ git submodule update
> $ autoreconf -if
> $ ./
On Wed, Apr 09, 2025 at 03:38:55AM +, Leon Blakey wrote:
> Host has various /etc directories symlinked to a config git repo. Running
> "virt-filesystems -a ./somevm.qcow2" fails with parent directory not found.
> Commands ran as root. Filesystem is ZFS and /etc is same dataset as /.
>
> Can
On Wed, Apr 23, 2025 at 04:06:45PM -0500, Eric Blake wrote:
> There has been an off-by-one bug in the code for .extents since the
> introduction of that callback. Remember, internally the code allows
> plugins to report on extents with 64-bit lengths, but the protocol
> only supports 32-bit block
On Wed, Apr 23, 2025 at 04:06:46PM -0500, Eric Blake wrote:
> If the original request is larger than 2**32 - minblock, then we were
> calling nbdkit_extents_aligned() with a count that rounded up then
> overflowed to 0 instead of the intended 4G because of overflowing a
> 32-bit type, which in turn
Thanks. Please try this modified version of your patch:
https://gitlab.com/nbdkit/nbdkit/-/merge_requests/87
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
Fedora Windows cross-compil
On Tue, Apr 22, 2025 at 05:07:17PM -0500, Eric Blake via Libguestfs wrote:
> Latent since the introduction of the .extents callback. The loop
> intentionally truncates to 2**32-1 bytes, but condition to end the
> loop early used > while the assertion after the loop used <=, meaning
> that the asse
On Fri, Apr 04, 2025 at 09:56:17AM +0200, Andrew Lukoshko wrote:
> *
> Hello everyone,
>
> Rich, is this something we can consider enabling back in AlmaLinux?
> Does it work? Is it safe?
From a technical point of view, it all works fine.
I cannot comment on why we don't enable this or what you s
On Thu, Apr 03, 2025 at 11:58:34AM +0100, Richard W.M. Jones via Libguestfs
wrote:
> diff --git a/mltools/libosinfo-c.c b/mltools/libosinfo-c.c
> index 11df1fe..00d74c1 100644
> --- a/mltools/libosinfo-c.c
> +++ b/mltools/libosinfo-c.c
> @@ -164,17 +164,22 @@ v2v_osinfo_os_find
Valgrind was complaining about a memory leak in this function. From
looking at similar code in libosinfo itself, it appears we ought to be
unrefing a lot more references here.
This error started happening after the new 'test-phony-win2k25.sh' was
added, but it seems to be unrelated to the test it
On Wed, Apr 02, 2025 at 12:35:50PM +0200, AL13N wrote:
> Hi,
>
> I've noticed you had disabled NTFS support from guestmount (and the
> likes), but kept it for v2v.
>
> Can you tell me the reason why it was disabled from guestmount in
> the first place?
>
> How would I re-enable it in the spec f
On Thu, May 08, 2025 at 01:51:21PM -0500, Eric Blake via Libguestfs wrote:
> On Wed, Apr 23, 2025 at 04:06:44PM -0500, Eric Blake via Libguestfs wrote:
> > Still waiting on Red Hat's security team to decide if these get CVE
> > designations, but at this point, we consider the impact to be low
> > e
On Sat, May 10, 2025 at 10:08:30AM +0100, Richard W.M. Jones wrote:
> On Thu, May 08, 2025 at 01:51:21PM -0500, Eric Blake via Libguestfs wrote:
> > On Wed, Apr 23, 2025 at 04:06:44PM -0500, Eric Blake via Libguestfs wrote:
> > > Still waiting on Red Hat's security team to decide if these get CVE
>
On Mon, May 12, 2025 at 07:31:33PM -0400, ro...@kleimanup.com wrote:
...
> cp: cannot open '/boot/vmlinuz-6.8.0-59-generic' for reading: Permission
> denied
It's probably:
https://libguestfs.org/guestfs-faq.1.html#where-can-i-get-the-latest-binaries-for
(under "Debian and Ubuntu")
Rich.
--
On Fri, May 16, 2025 at 03:28:53PM -0500, Eric Blake via Libguestfs wrote:
> Instead of serializing connections (which in turn serializes requests
> because it is unsafe to open more than one handle into the filesystem
> at the same time), use the recently-added APIs to open the filesystem
> during
On Sat, May 10, 2025 at 10:44:36AM +0100, Richard W.M. Jones via Libguestfs
wrote:
> On Sat, May 10, 2025 at 10:08:30AM +0100, Richard W.M. Jones wrote:
> > On Thu, May 08, 2025 at 01:51:21PM -0500, Eric Blake via Libguestfs wrote:
> > > On Wed, Apr 23, 2025 at 04:06:44PM -05
I'm pleased to announce the stable release of guestfs-tools 1.54.
Guestfs tools is a set of command line tools like virt-customize and
virt-edit for inspecting and editing virtual machine disk images.
The release notes for the new version are attached below, or can be
read on line here:
https:
It's been a while since we released new stable branches of libguestfs,
guestfs-tools and virt-v2v. For guestfs-tools, not since January 2024(!)
I've prepared preliminary release notes for all three projects here:
https://github.com/libguestfs/libguestfs/blob/master/docs/guestfs-release-notes-1.5
On Fri, Jun 20, 2025 at 05:12:27PM +0530, Aithal, Srikanth wrote:
> Hello all,
>
> I am encountering an issue with virt-customize when the host kernel, on which
> virt-customize runs, has CONFIG_IPV6_SIT built-in. Below is the error output
> from the command:
>
> virt-customize -a noble-server-
On Tue, Jun 24, 2025 at 12:37:22PM +0200, Stefano Brivio wrote:
> On Tue, 24 Jun 2025 15:46:13 +0530
> "Aithal, Srikanth" wrote:
>
> > On 6/24/2025 3:04 PM, Stefano Brivio wrote:
> > > On Tue, 24 Jun 2025 09:12:33 +0100
> > > "Richard W.M. Jones" wrote:
> > >
> > >> On Tue, Jun 24, 2025 at 01:2
On Tue, Jun 24, 2025 at 01:57:09PM +0200, Stefano Brivio wrote:
> On Tue, 24 Jun 2025 12:33:17 +0100
> "Richard W.M. Jones" wrote:
> > I'm a bit confused here. How does host IPv4 or IPv6 affect what
> > happens in the appliance?
>
> The appliance still needs to connect to hosts using IPv4 or IPv
On Tue, Jun 24, 2025 at 02:33:43PM +0200, Stefano Brivio wrote:
> On Tue, 24 Jun 2025 13:15:58 +0100
> "Richard W.M. Jones" wrote:
> > If passt is like slirp, then it would originate connections itself
> > (ie. calling connect(2) on the host side), so I don't understand how
> > the address family
(Forwarding this because I accidentally fat-fingered the "Reject"
button in hyperkitty)
- Forwarded message from Stefano Brivio -
Date: Tue, 24 Jun 2025 15:31:45 +0200
From: Stefano Brivio
To: "Richard W.M. Jones"
Cc: "Aithal, Srikanth" , guestfs@lists.libguestfs.org
Subject: Re: appli
Reported-by: Srikanth Aithal
Fixed-by: Stefano Brivio
See:
https://lists.libguestfs.org/archives/list/guestfs@lists.libguestfs.org/thread/566LAY7RNM7T7EMQQQYIQA2VK5TXETK5/
---
appliance/init | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/appliance/init b/appliance/init
index
On Wed, Jun 25, 2025 at 03:40:23PM +0530, Aithal, Srikanth wrote:
> On 6/24/2025 6:37 PM, Richard W.M. Jones via Libguestfs wrote:
> >Reported-by: Srikanth Aithal
> >Fixed-by: Stefano Brivio
> >See:
> >https://lists.libguestfs.org/archives/list/guestfs@
On Tue, Jun 24, 2025 at 01:25:47PM +0530, Aithal, Srikanth wrote:
> libguestfs: command: run: \ --pid /tmp/libguestfsJamIlZ/passt1.pid
...
> Don't run as root. Changing to nobody...
...
> PID file open: Permission denied
> libguestfs: trace: launch = -1 (error)
In libguestfs we already work around
I'm pleased to announce the stable releases of libguestfs (1.56) and
virt-v2v (2.8). Libguestfs is a library for reading and writing
virtual machines and disk images. Virt-v2v is program for converting
virtual machines from foreign hypervisors to run on qemu/KVM.
These were last released over a
On Fri, Jul 11, 2025 at 10:41:59PM +, Chintan Patel wrote:
> Hi Richard,
>
> We were using LibguestFS version 1.52 on Fedora 39 and it was working as
> expected since last year, but due to the security issue and Fedora 39 is our
> of
> support we need to upgrade to Fedora 40 for our container
I'm pleased to announce the new stable release of nbdkit 1.44.
nbdkit is a Network Block Device (NBD) server with a stable plugin ABI
and a permissive license.
nbdkit 1.44.0 can be downloaded here:
https://download.libguestfs.org/nbdkit/1.44-stable/
git here: https://gitlab.com/nbdkit/nbdkit
Rel
On Sat, Jul 26, 2025 at 02:09:01PM +0100, Richard W.M. Jones wrote:
> Are you sure that your Alpine applications can't simply be recreated
> (eg. from Ansible playbooks or however you deploy software) on the
> target?
... or even just copied as a disk image to KVM? Alpine might already
have virti
On Sat, Jul 26, 2025 at 01:36:38PM +0200, 414N wrote:
> Il 08/07/25 09:41, Richard W.M. Jones ha scritto:
> >Different problem. I can upload a new appliance here, but is there a
> >reason not to just generate the appliance? The binary appliance is
> >only really intended for very specialized uses
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