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<p>Hallo,</p>
<p>for example, i get this error:</p>
<p><i><br>
</i></p>
<p><i></i></p>
<div><i>rpm -ivh kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64.rpm<br>
error: Failed dependencies:<br>
kernel(bio_integrity_prep_fn) = 0x1662ce97 is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2__journal_restart) = 0x4e2d080e is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2__journal_start) = 0x8a2bbfef is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_complete_transaction) = 0x5341e2fe is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_journal_abort) = 0xac5d1df7 is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_journal_begin_ordered_truncate) = 0xb91f2c0b is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_journal_check_available_features) = 0x8a71fddb is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_journal_clear_err) = 0x36ca3f40 is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64<br>
kernel(jbd2_journal_clear_features) = 0xce987084 is needed by kmod-lustre-osd-ldiskfs-2.15.5-1.el8.x86_64</i></div>
<div><br>
</div>
<div>It could be a kernel version incompatibility issue...but i am using the RHEL <span>4.18.0-553.5.1.el8_10.x86_64</span></div>
<div><br>
</div>
<div>Abi<br>
<br>
</div>
<br>
<p></p>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Pati, Abhilasha<br>
<b>Sent:</b> Wednesday, March 18, 2026 11:21:39 AM<br>
<b>To:</b> Abdeslam Tahari; Mohr, Rick<br>
<b>Cc:</b> lustre-discuss<br>
<b>Subject:</b> Re: [lustre-discuss] [EXTERNAL] Re: Installation of Lustre server lustre-2.15.5-1.el8</font>
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<p>Hallo all,</p>
<p><br>
</p>
<p>I was able to reach this point:</p>
<p>i have mounted the modules for lustre...(also is it okay if the modules are in
<b>weak-updates</b>)</p>
<p><br>
</p>
<p></p>
<div><i>[###### ~]$ sudo modprobe -v lustre<br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/net/libcfs.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/net/lnet.ko networks="o2ib3(ib0)" <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/obdclass.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/ptlrpc.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/fld.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/fid.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/osc.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/lov.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/mdc.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/lmv.ko <br>
insmod /lib/modules/4.18.0-553.5.1.el8_10.x86_64/weak-updates/lustre/fs/lustre.ko </i></div>
<div><i><br>
</i></div>
<div><i></i>but i cannot mount for ldiskfs:<i></i></div>
<div><i><br>
[####### ~]$ sudo modprobe -v ldiskfs<br>
modprobe: FATAL: Module ldiskfs not found in directory /lib/modules/4.18.0-553.5.1.el8_10.x86_64</i></div>
<div><i><br>
</i></div>
<div><i></i>I understand i do not have the correct ldiskfs rpm:</div>
<div><br>
</div>
<div></div>
<div><i>
<div>[###### ~]$ sudo dnf list installed | grep lustre<br>
<br>
kmod-lustre.x86_64 2.15.5-1.el8 @@System <br>
lustre-osd-ldiskfs-mount.x86_64 2.15.5-1.el8 @@System <br>
<br>
</div>
<div><b></b>Could you please tell me, which rpm should i use from whamcloud, to correctly install ldiskfs.</div>
<div>This is the whamcloud repo: <a href="https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/" class="OWAAutoLink">https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/</a></div>
<div><br>
</div>
<div>Abi</div>
<div><b> </b></div>
<br>
</i></div>
<br>
<p></p>
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<hr style="display:inline-block;width:98%" tabindex="-1">
<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Abdeslam Tahari <abeslam@gmail.com><br>
<b>Sent:</b> Tuesday, March 17, 2026 8:08:21 PM<br>
<b>To:</b> Mohr, Rick<br>
<b>Cc:</b> Pati, Abhilasha; lustre-discuss<br>
<b>Subject:</b> Re: [lustre-discuss] [EXTERNAL] Re: Installation of Lustre server lustre-2.15.5-1.el8</font>
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<div dir="auto">
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<div>You have a mismatched version </div>
<div dir="auto">But the error was clear it needs the version shown in the error that is all</div>
<div dir="auto"><br>
</div>
<div dir="auto">You have installed and E2 fsprogs different </div>
<div><br>
</div>
<div data-smartmail="gmail_signature">Tahari.Abdeslam</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">Le mar. 17 mars 2026, 17:04, Mohr, Rick via lustre-discuss <<a href="mailto:lustre-discuss@lists.lustre.org">lustre-discuss@lists.lustre.org</a>> a écrit :<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Just to clarify things a bit more, if you look at what is provided by the standard RHEL e2fsprogs package, you get something like this:<br>
<br>
#> rpm -q --provides e2fsprogs<br>
config(e2fsprogs) = 1.46.5-5.el9<br>
e2fsprogs = 1.46.5-5.el9<br>
e2fsprogs(x86-64) = 1.46.5-5.el9<br>
e4fsprogs = 1.46.5-5.el9<br>
<br>
But if you do the same for the lustre-patched version of e2fsprogs, you get this:<br>
<br>
#> rpm -q --provides e2fsprogs<br>
config(e2fsprogs) = 1.46.5.cr1.8-1.el8<br>
e2fsprogs = 1.46.5.cr1.8-1.el8<br>
e2fsprogs(x86-64) = 1.46.5.cr1.8-1.el8<br>
e4fsprogs = 1.46.5.cr1.8-1.el8<br>
ldiskfsprogs = 1.46.5.cr1.8<br>
<br>
This is why the lustre-osd-ldiskfs-mount package has a requirement for ldiskfsprogs and not just e2fsprogs. It is trying to ensure that the installed version of e2fsprogs on the system has any needed lustre patches.<br>
<br>
--Rick<br>
<br>
On 3/17/26, 10:14 AM, "lustre-discuss on behalf of Pati, Abhilasha via lustre-discuss" <<a href="mailto:lustre-discuss-bounces@lists.lustre.org" target="_blank" rel="noreferrer">lustre-discuss-bounces@lists.lustre.org</a> <mailto:<a href="mailto:lustre-discuss-bounces@lists.lustre.org" target="_blank" rel="noreferrer">lustre-discuss-bounces@lists.lustre.org</a>>
on behalf of <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank" rel="noreferrer">
lustre-discuss@lists.lustre.org</a> <mailto:<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank" rel="noreferrer">lustre-discuss@lists.lustre.org</a>>> wrote:<br>
<br>
<br>
Hallo 😊,<br>
I need another help in understanding this issue.<br>
I am trying to install lustre 2.15.5 on 4.18.0-553.5.1.el8_10.x86_64...and when i am trying to install the rpm binary "lustre-osd-ldiskfs-mount", i get the following error..<br>
<br>
<br>
[######~]$ sudo rpm -i lustre-osd-ldiskfs-mount-2.15.5-1.el8.x86_64.rpm <br>
error: Failed dependencies:<br>
ldiskfsprogs >= 1.45.6.wc1 is needed by lustre-osd-ldiskfs-mount-2.15.5-1.el8.x86_64<br>
<br>
Please note, i already have e2fsprogs on my machine....which is what ldiskfsprogs is called after 1.45.6<br>
<br>
[###### ~]$ sudo dnf list installed | grep e2fsprogs<br>
e2fsprogs.x86_64 1.45.6-7.el8_10 @anaconda <br>
e2fsprogs-devel.x86_64 1.45.6-7.el8_10 @gsi-rocky-base <br>
e2fsprogs-libs.x86_64 1.45.6-7.el8_10 @anaconda <br>
<br>
Please let me know what my mistake here is....<br>
I have already installed lustre-ldiskfs-dkms-2.15.5-1.el8.noarch.rpm <br>
<br>
MfG<br>
Abhilasha <br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
________________________________________<br>
From: Andreas Dilger <<a href="mailto:adilger@thelustrecollective.com" target="_blank" rel="noreferrer">adilger@thelustrecollective.com</a> <mailto:<a href="mailto:adilger@thelustrecollective.com" target="_blank" rel="noreferrer">adilger@thelustrecollective.com</a>>><br>
Sent: Friday, March 6, 2026 8:51:42 PM<br>
To: Pati, Abhilasha<br>
Cc: <a href="mailto:lustre-discuss@lists.lustre.org" target="_blank" rel="noreferrer">
lustre-discuss@lists.lustre.org</a> <mailto:<a href="mailto:lustre-discuss@lists.lustre.org" target="_blank" rel="noreferrer">lustre-discuss@lists.lustre.org</a>><br>
Subject: Re: [lustre-discuss] Installation of Lustre server lustre-2.15.5-1.el8 <br>
<br>
<br>
<br>
<br>
I guess you need to explain whether you are trying to install the binary RPM modules (Lustre 2.15.5 RPM packages are available for 4.18.0-553.5.1 at<br>
<a href="https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/" rel="noreferrer noreferrer" target="_blank">https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/</a>
<<a href="https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/" rel="noreferrer noreferrer" target="_blank">https://build.whamcloud.com/job/lustre-b2_15/94/arch=x86_64,build_type=server,distro=el8.10,ib_stack=inkernel/artifact/artifacts/RPMS/x86_64/</a>>
<<a href="https://urldefense.us/v2/url?u=https-3A__build.whamcloud.com_job_lustre-2Db2-5F15_94_arch-3Dx86-5F64-2Cbuild-5Ftype-3Dserver-2Cdistro-3Del8.10-2Cib-5Fstack-3Dinkernel_artifact_artifacts_RPMS_x86-5F64_&d=DwMGaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=SpEwA4Pnyq7nH7aMGq8KpA&m=jEYBshGHHqRQKLtZ18b8GCMqu6Gpms6toj6gWEjIusqR3VMLZeYGgdyhdPUvdUaF&s=M-BQDbZkp6zOa9LBDk6HcN-8_cD_o2JqQvAi-2ml0tM&e=" rel="noreferrer noreferrer" target="_blank">https://urldefense.us/v2/url?u=https-3A__build.whamcloud.com_job_lustre-2Db2-5F15_94_arch-3Dx86-5F64-2Cbuild-5Ftype-3Dserver-2Cdistro-3Del8.10-2Cib-5Fstack-3Dinkernel_artifact_artifacts_RPMS_x86-5F64_&d=DwMGaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=SpEwA4Pnyq7nH7aMGq8KpA&m=jEYBshGHHqRQKLtZ18b8GCMqu6Gpms6toj6gWEjIusqR3VMLZeYGgdyhdPUvdUaF&s=M-BQDbZkp6zOa9LBDk6HcN-8_cD_o2JqQvAi-2ml0tM&e=</a>>
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or if you are trying to build your own packages using DKMS?<br>
<br>
<br>
Installing the binary RPMs is *much* easier, in which case you don't need<br>
the DKMS packages at all.<br>
<br>
<br>
If you are building your own packages then you should use 2.15.8 since it<br>
contains a lot more fixes than installing 2.15.5 on a new system.<br>
<br>
<br>
Cheers, Andreas<br>
<br>
<br>
> On Mar 3, 2026, at 07:06, Pati, Abhilasha <<a href="mailto:A.Pati@gsi.de" target="_blank" rel="noreferrer">A.Pati@gsi.de</a> <mailto:<a href="mailto:A.Pati@gsi.de" target="_blank" rel="noreferrer">A.Pati@gsi.de</a>>> wrote:<br>
> <br>
> Hallo,<br>
> I am trying to install lustre server with ldiskfs on a RHEL 8.10 kernel version: 4.18.0-553.5.1.el8_10.x86_64.<br>
> i have already successfully installed the lustre-ldiskfs-dkms module....<br>
> <br>
> [#########~]$ sudo dnf list installed | grep lustre<br>
> kernel-debuginfo-common-x86_64.x86_64 4.18.0-553.5.1.el8_lustre @lustre-server <br>
> lustre-ldiskfs-dkms.noarch 2.15.5-1.el8 @lustre-server <br>
> <br>
> But when i am trying to install the lustre-2.15.5-1.el8 package i get the following error:<br>
> <br>
> [########~]$ sudo dnf install lustre-2.15.5-1.el8<br>
> Error: <br>
> Problem: package lustre-osd-zfs-mount-2.15.5-1.el8.x86_64 from lustre-server requires kmod-lustre-osd-zfs, but none of the providers can be installed<br>
> - package lustre-all-dkms-2.15.5-1.el8.noarch from lustre-server conflicts with lustre-ldiskfs-dkms provided by lustre-ldiskfs-dkms-2.15.5-1.el8.noarch from lustre-server<br>
> - package lustre-ldiskfs-dkms-2.15.5-1.el8.noarch from lustre-server conflicts with lustre-all-dkms provided by lustre-all-dkms-2.15.5-1.el8.noarch from lustre-server<br>
> <br>
> I don't understand why we should get this error....since we are strictly trying install the lustre using dkms, we also have the following kernel devel and kernel header packages :<br>
> <br>
> kernel.x86_64 4.18.0-553.5.1.el8_10 <br>
> kernel-core.x86_64 4.18.0-553.5.1.el8_10 <br>
> kernel-debuginfo-common-x86_64.x86_64 4.18.0-553.5.1.el8_lustre <br>
> kernel-devel.x86_64 4.18.0-553.5.1.el8_10 <br>
> kernel-headers.x86_64 4.18.0-553.5.1.el8_10 <br>
> <br>
> <br>
> As far as I understood the Lustre Server 2.15.5 supports for kernel <br>
> • RHEL 8.10 (4.18.0-553.5.1.el8_10)<br>
> So there should not be any problem while installing the lustre-2.15.5-1.el8<br>
> Looking forward to your reply,<br>
> With sincerest regards<br>
> <br>
> Abhilasha Pati<br>
> <br>
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