RPM 6 in Wrynose

RPM 6 in Wrynose

[Matthew Ware (mattware)]

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Hi OpenEmbedded folks,

I see that the next OpenEmbedded release, Wrynose, currently uses RPM 4.20.1, but that there are efforts to use RPM 6 instead. I was wondering, what is the current state of the RPM 6 effort? Is it looking likely that Wrynose will take RPM 6?

Thanks,
Matt

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Re: [OE-core] RPM 6 in Wrynose

[Alexander Kanavin]

On Tue, 10 Mar 2026 at 13:24, Matthew Ware (mattware) via
lists.openembedded.org <mattware=cisco.com@lists.openembedded.org>
wrote:
> I see that the next OpenEmbedded release, Wrynose, currently uses RPM 4.20.1, but that there are efforts to use RPM 6 instead. I was wondering, what is the current state of the RPM 6 effort? Is it looking likely that Wrynose will take RPM 6?

It still has issues, so whether the update makes it in wrynose is
unclear, and the effort may not be ready in time. Rpm updates tend to
break all over the place in all kinds of corner cases, and fixing
issues often reveals new issues, especially when the person working on
the update isn't able to run yocto CI pipeline themselves.

If rpm 6 in wrynose is important to you, help is very welcome.
Mathieu/Robert should be able point to particular remaining issues.

Alex

Re: [OE-core] RPM 6 in Wrynose

[Matthew Ware (mattware)]

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I'm not sure if we'd be able to help, I certainly don't have any expertise in OE. What are the remaining issues, and when do they need to be resolved by to make it into Wrynose? I'll see whether we can offer any help.


________________________________
From: Alexander Kanavin <alex.kanavin@gmail.com>
Sent: Tuesday, March 10, 2026 12:50 PM
To: Matthew Ware (mattware) <mattware@cisco.com>
Cc: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Subject: Re: [OE-core] RPM 6 in Wrynose

On Tue, 10 Mar 2026 at 13:24, Matthew Ware (mattware) via
lists.openembedded.org <mattware=cisco.com@lists.openembedded.org>
wrote:
> I see that the next OpenEmbedded release, Wrynose, currently uses RPM 4.20.1, but that there are efforts to use RPM 6 instead. I was wondering, what is the current state of the RPM 6 effort? Is it looking likely that Wrynose will take RPM 6?

It still has issues, so whether the update makes it in wrynose is
unclear, and the effort may not be ready in time. Rpm updates tend to
break all over the place in all kinds of corner cases, and fixing
issues often reveals new issues, especially when the person working on
the update isn't able to run yocto CI pipeline themselves.

If rpm 6 in wrynose is important to you, help is very welcome.
Mathieu/Robert should be able point to particular remaining issues.

Alex

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Re: [OE-core] RPM 6 in Wrynose

[Matthew Ware (mattware)]

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Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is staying on 4.x, but wondered if there was a plan/aim for DNF 5.

Thanks,
Matt


________________________________
From: Matthew Ware (mattware) <mattware@cisco.com>
Sent: Tuesday, March 10, 2026 2:09 PM
To: Alexander Kanavin <alex.kanavin@gmail.com>
Cc: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Subject: Re: [OE-core] RPM 6 in Wrynose

I'm not sure if we'd be able to help, I certainly don't have any expertise in OE. What are the remaining issues, and when do they need to be resolved by to make it into Wrynose? I'll see whether we can offer any help.


________________________________
From: Alexander Kanavin <alex.kanavin@gmail.com>
Sent: Tuesday, March 10, 2026 12:50 PM
To: Matthew Ware (mattware) <mattware@cisco.com>
Cc: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Subject: Re: [OE-core] RPM 6 in Wrynose

On Tue, 10 Mar 2026 at 13:24, Matthew Ware (mattware) via
lists.openembedded.org <mattware=cisco.com@lists.openembedded.org>
wrote:
> I see that the next OpenEmbedded release, Wrynose, currently uses RPM 4.20.1, but that there are efforts to use RPM 6 instead. I was wondering, what is the current state of the RPM 6 effort? Is it looking likely that Wrynose will take RPM 6?

It still has issues, so whether the update makes it in wrynose is
unclear, and the effort may not be ready in time. Rpm updates tend to
break all over the place in all kinds of corner cases, and fixing
issues often reveals new issues, especially when the person working on
the update isn't able to run yocto CI pipeline themselves.

If rpm 6 in wrynose is important to you, help is very welcome.
Mathieu/Robert should be able point to particular remaining issues.

Alex

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Re: [OE-core] RPM 6 in Wrynose

[Alexander Kanavin]

On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
<mattware@cisco.com> wrote:
> Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is staying on 4.x, but wondered if there was a plan/aim for DNF 5.

Yes, there are WIP patches for it too. Adam is working on it.

I have to ask: can you give us some context? What makes you interested
in having these versions in Yocto?

Alex

Re: [OE-core] RPM 6 in Wrynose

[Clayton Casciato]

> What makes you interested in having these versions in Yocto?

Our team is looking forward to RPM 6 [1]:
"Support for [...] PQC keys and signatures"
"rpmsign can use [...] Sequoia-sq for signing" [2] 
"Fix non-deterministic [...]" (reproducible builds)
"Crypto modernization"

[1] https://rpm.org/releases/6.0.0
[2] https://bugzilla.yoctoproject.org/show_bug.cgi?id=15690

Clayton Casciato

Re: [OE-core] RPM 6 in Wrynose

[Matthew Ware (mattware)]

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Hi Alex,

Fair question! My team are looking at using yocto 6.0 when it's released, and rpm6 has some features we're interested in. If rpm 6 makes it into yocto 6.0 we can start taking advantage of those features, and I want to plan for that :). Similar with dnf 5.

Thanks,
Matt


________________________________
From: Alexander Kanavin <alex.kanavin@gmail.com>
Sent: Tuesday, March 10, 2026 5:26 PM
To: Matthew Ware (mattware) <mattware@cisco.com>
Cc: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>; adam.duskett@amarulasolutions.com <adam.duskett@amarulasolutions.com>
Subject: Re: [OE-core] RPM 6 in Wrynose

On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
<mattware@cisco.com> wrote:
> Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is staying on 4.x, but wondered if there was a plan/aim for DNF 5.

Yes, there are WIP patches for it too. Adam is working on it.

I have to ask: can you give us some context? What makes you interested
in having these versions in Yocto?

Alex

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Re: [OE-core] RPM 6 in Wrynose

[Robert Yang]

On 3/11/26 20:00, Matthew Ware (mattware) wrote:
> Hi Alex,
> 
> Fair question! My team are looking at using yocto 6.0 when it's released, and 
> rpm6 has some features we're interested in. If rpm 6 makes it into yocto 6.0 we 

I'm still working on upgrading to 6, here is the latest tmp code:

$ git fetch https://github.com/robertlinux/yocto rbt/rpm_tmp

Currently, it can't provides the pkgconfig files correctly when the pc files are
/usr/share/pkgconfig/, any help is appreciated, for example, help to do more
testing to find the corner cases.

// Robert

> can start taking advantage of those features, and I want to plan for that :). 
> Similar with dnf 5.
> 
> Thanks,
> Matt
> 
> 
> --------------------------------------------------------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Tuesday, March 10, 2026 5:26 PM
> *To:* Matthew Ware (mattware) <mattware@cisco.com>
> *Cc:* openembedded-core@lists.openembedded.org <openembedded- 
> core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; 
> Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois- 
> briand@bootlin.com>; adam.duskett@amarulasolutions.com 
> <adam.duskett@amarulasolutions.com>
> *Subject:* Re: [OE-core] RPM 6 in Wrynose
> 
> On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
> <mattware@cisco.com> wrote:
>  > Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is 
> staying on 4.x, but wondered if there was a plan/aim for DNF 5.
> 
> Yes, there are WIP patches for it too. Adam is working on it.
> 
> I have to ask: can you give us some context? What makes you interested
> in having these versions in Yocto?
> 
> Alex

Re: [OE-core] RPM 6 in Wrynose

[Matthew Ware (mattware)]

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Thanks Robert,

I'm looking internally within the team for whether we have the resources and expertise to be able to help at all :)

If we do find the time/ability to help, we would likely need guidance on what's been tested already, what needs testing still, how to test, etc.

Thanks,
Matt


________________________________
From: Robert Yang <liezhi.yang@windriver.com>
Sent: Wednesday, March 11, 2026 12:18 PM
To: Matthew Ware (mattware) <mattware@cisco.com>; Alexander Kanavin <alex.kanavin@gmail.com>
Cc: openembedded-core@lists.openembedded.org <openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>; adam.duskett@amarulasolutions.com <adam.duskett@amarulasolutions.com>
Subject: Re: [OE-core] RPM 6 in Wrynose



On 3/11/26 20:00, Matthew Ware (mattware) wrote:
> Hi Alex,
>
> Fair question! My team are looking at using yocto 6.0 when it's released, and
> rpm6 has some features we're interested in. If rpm 6 makes it into yocto 6.0 we

I'm still working on upgrading to 6, here is the latest tmp code:

$ git fetch https://github.com/robertlinux/yocto rbt/rpm_tmp

Currently, it can't provides the pkgconfig files correctly when the pc files are
/usr/share/pkgconfig/, any help is appreciated, for example, help to do more
testing to find the corner cases.

// Robert

> can start taking advantage of those features, and I want to plan for that :).
> Similar with dnf 5.
>
> Thanks,
> Matt
>
>
> --------------------------------------------------------------------------------
> *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> *Sent:* Tuesday, March 10, 2026 5:26 PM
> *To:* Matthew Ware (mattware) <mattware@cisco.com>
> *Cc:* openembedded-core@lists.openembedded.org <openembedded-
> core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>;
> Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-
> briand@bootlin.com>; adam.duskett@amarulasolutions.com
> <adam.duskett@amarulasolutions.com>
> *Subject:* Re: [OE-core] RPM 6 in Wrynose
>
> On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
> <mattware@cisco.com> wrote:
>  > Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is
> staying on 4.x, but wondered if there was a plan/aim for DNF 5.
>
> Yes, there are WIP patches for it too. Adam is working on it.
>
> I have to ask: can you give us some context? What makes you interested
> in having these versions in Yocto?
>
> Alex


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Re: [OE-core] RPM 6 in Wrynose

[Adam Duskett]

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Hi all;

I could use some help with dnf5 actually!
The last patch series has two problems:
  - Systemd packaging errors when usrmerge isn't selected (fixed)
  - Segfaults when musl is built

I have fixed the first problem but the second one is a bit too much for me
to track down given
my current workload.

I can throw up a patch series today if anyone is willing to help with the
segfaults!

Adam


On Wed, Mar 11, 2026 at 4:42 PM Matthew Ware (mattware) <mattware@cisco.com>
wrote:

> Thanks Robert,
>
> I'm looking internally within the team for whether we have the resources
> and expertise to be able to help at all :)
>
> If we do find the time/ability to help, we would likely need guidance on
> what's been tested already, what needs testing still, how to test, etc.
>
> Thanks,
> Matt
>
>
> ------------------------------
> *From:* Robert Yang <liezhi.yang@windriver.com>
> *Sent:* Wednesday, March 11, 2026 12:18 PM
> *To:* Matthew Ware (mattware) <mattware@cisco.com>; Alexander Kanavin <
> alex.kanavin@gmail.com>
> *Cc:* openembedded-core@lists.openembedded.org <
> openembedded-core@lists.openembedded.org>; Elliot Sparling (esparlin) <
> esparlin@cisco.com>; Mathieu Dubois-Briand <
> mathieu.dubois-briand@bootlin.com>; adam.duskett@amarulasolutions.com <
> adam.duskett@amarulasolutions.com>
> *Subject:* Re: [OE-core] RPM 6 in Wrynose
>
>
>
> On 3/11/26 20:00, Matthew Ware (mattware) wrote:
> > Hi Alex,
> >
> > Fair question! My team are looking at using yocto 6.0 when it's
> released, and
> > rpm6 has some features we're interested in. If rpm 6 makes it into yocto
> 6.0 we
>
> I'm still working on upgrading to 6, here is the latest tmp code:
>
> $ git fetch https://github.com/robertlinux/yocto rbt/rpm_tmp
>
> Currently, it can't provides the pkgconfig files correctly when the pc
> files are
> /usr/share/pkgconfig/, any help is appreciated, for example, help to do
> more
> testing to find the corner cases.
>
> // Robert
>
> > can start taking advantage of those features, and I want to plan for
> that :).
> > Similar with dnf 5.
> >
> > Thanks,
> > Matt
> >
> >
> >
> --------------------------------------------------------------------------------
> > *From:* Alexander Kanavin <alex.kanavin@gmail.com>
> > *Sent:* Tuesday, March 10, 2026 5:26 PM
> > *To:* Matthew Ware (mattware) <mattware@cisco.com>
> > *Cc:* openembedded-core@lists.openembedded.org <openembedded-
> > core@lists.openembedded.org>; Elliot Sparling (esparlin) <
> esparlin@cisco.com>;
> > Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand
> <mathieu.dubois-
> > briand@bootlin.com>; adam.duskett@amarulasolutions.com
> > <adam.duskett@amarulasolutions.com>
> > *Subject:* Re: [OE-core] RPM 6 in Wrynose
> >
> > On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
> > <mattware@cisco.com> wrote:
> >  > Also, since we're here: is there any plan to move to DNF 5? I see
> Wrynose is
> > staying on 4.x, but wondered if there was a plan/aim for DNF 5.
> >
> > Yes, there are WIP patches for it too. Adam is working on it.
> >
> > I have to ask: can you give us some context? What makes you interested
> > in having these versions in Yocto?
> >
> > Alex
>
>

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Re: [OE-core] RPM 6 in Wrynose

[Robert Yang]

Hello,

On 3/11/26 23:42, Matthew Ware (mattware) wrote:
> Thanks Robert,
> 
> I'm looking internally within the team for whether we have the resources and 
> expertise to be able to help at all :)
> 
> If we do find the time/ability to help, we would likely need guidance on what's 
> been tested already, what needs testing still, how to test, etc.
> 

I've fixed all the known issues and sent V8:

https://lists.openembedded.org/g/openembedded-core/message/232960

Thanks for everyone's great help, especially Mathieu Dubois-Briand.

This is the most difficult work that I've met in the past 17 years.

// Robert

> Thanks,
> Matt
> 
> 
> --------------------------------------------------------------------------------
> *From:* Robert Yang <liezhi.yang@windriver.com>
> *Sent:* Wednesday, March 11, 2026 12:18 PM
> *To:* Matthew Ware (mattware) <mattware@cisco.com>; Alexander Kanavin 
> <alex.kanavin@gmail.com>
> *Cc:* openembedded-core@lists.openembedded.org <openembedded- 
> core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>; 
> Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>; 
> adam.duskett@amarulasolutions.com <adam.duskett@amarulasolutions.com>
> *Subject:* Re: [OE-core] RPM 6 in Wrynose
> 
> 
> 
> On 3/11/26 20:00, Matthew Ware (mattware) wrote:
>  > Hi Alex,
>  >
>  > Fair question! My team are looking at using yocto 6.0 when it's released, and
>  > rpm6 has some features we're interested in. If rpm 6 makes it into yocto 6.0 we
> 
> I'm still working on upgrading to 6, here is the latest tmp code:
> 
> $ git fetch https://github.com/robertlinux/yocto <https://urldefense.com/v3/ 
> __https://github.com/robertlinux/yocto__;!!AjveYdw8EvQ!d1UZR5NKHPP7CMaf- 
> i8ietOYQm27QGloqRWeE0sM1Cjx3zDXxt8QfFSJfb9x-Xs80wt8QxoYvsIjj0HPNtGH$> rbt/rpm_tmp
> 
> Currently, it can't provides the pkgconfig files correctly when the pc files are
> /usr/share/pkgconfig/, any help is appreciated, for example, help to do more
> testing to find the corner cases.
> 
> // Robert
> 
>  > can start taking advantage of those features, and I want to plan for that :).
>  > Similar with dnf 5.
>  >
>  > Thanks,
>  > Matt
>  >
>  >
>  > --------------------------------------------------------------------------------
>  > *From:* Alexander Kanavin <alex.kanavin@gmail.com>
>  > *Sent:* Tuesday, March 10, 2026 5:26 PM
>  > *To:* Matthew Ware (mattware) <mattware@cisco.com>
>  > *Cc:* openembedded-core@lists.openembedded.org <openembedded-
>  > core@lists.openembedded.org>; Elliot Sparling (esparlin) <esparlin@cisco.com>;
>  > Robert Yang <liezhi.yang@windriver.com>; Mathieu Dubois-Briand <mathieu.dubois-
>  > briand@bootlin.com>; adam.duskett@amarulasolutions.com
>  > <adam.duskett@amarulasolutions.com>
>  > *Subject:* Re: [OE-core] RPM 6 in Wrynose
>  >
>  > On Tue, 10 Mar 2026 at 18:24, Matthew Ware (mattware)
>  > <mattware@cisco.com> wrote:
>  >  > Also, since we're here: is there any plan to move to DNF 5? I see Wrynose is
>  > staying on 4.x, but wondered if there was a plan/aim for DNF 5.
>  >
>  > Yes, there are WIP patches for it too. Adam is working on it.
>  >
>  > I have to ask: can you give us some context? What makes you interested
>  > in having these versions in Yocto?
>  >
>  > Alex
> 

Re: [OE-core] RPM 6 in Wrynose

[Alexander Kanavin]

On Thu, 12 Mar 2026 at 15:15, Robert Yang via lists.openembedded.org
<liezhi.yang=windriver.com@lists.openembedded.org> wrote:
> Thanks for everyone's great help, especially Mathieu Dubois-Briand.
>
> This is the most difficult work that I've met in the past 17 years.

I want to express appreciation for your perseverance with this, I know
very well how tedious rpm/dnf upgrades can be. Hopefully it's
beneficial for you (learning how a key component works), and it
certainly is beneficial for the project when more than one person
knows a subject.

Alex