Since it seems I have now managed to create the modules, I'd like to record
that here:
1. Install system w AlmaLinux 8.5 -> kernel 4.18.0-348.23.1
2. Install packages from Whamcloud (lustre-2.15.0/el8.5.2111/server/): lustre, kmod-lustre,
kmod-lustre-osd-ldiskfs -> fails due to the discussed 'unknown symbols', cf.
https://jira.whamcloud.com/browse/LU-15962
3. Install the correspoding dkms-packages -> fails, reason not clear
4. Go to the remnant /var/lib/dkms/lustre-ldiskfs/2.15.0/build, run configure with
'--with-o2ib=/usr/src/kernels/4.18.0-348.23.1.el8_5.x86_64' (that's were the kernel-devel + the extfs
sources ended up in this case)
5. 'make rpms' now fails with
> make[4]: Entering directory
'/var/lib/dkms/lustre-ldiskfs/2.15.0/build/lustre/utils'
> ...
> In file included from liblustreapi.c:83:
> lstddef.h:306:22: error: static declaration of ‘copy_file_range’ follows
non-static declaration
> │static inline loff_t copy_file_range(int fd_in, loff_t *off_in, int fd_out,
This was already reported last year, e.g.
https://www.mail-archive.com/[email protected]/msg16822.html
The workaround is also given there: the configure command line has '--disable-utils' (by default),
somehow this makes make go to 'utils' and fail.
6. Repeat 'configure with the '-with-o2ib=/usr/src/kernels...' and without
'--disable-utils'
7. 'make rpms' yields some installable kmod packages, the contained modules can be loaded (I haven't
setup the file system yet).
Cheers,
Thomas
PS: My rather spartan Alma-installation needed in addition 'dnf install'
> kernel-headers-4.18.0-348.23.1.el8_5.x86_64
kernel-devel-4.18.0-348.23.1.el8_5.x86_64 dkms
> kernel-4.18.0-348.23.1.el8_5.src
> e2fsprogs-devel rpm-build kernel-rpm-macros kernel-abi-whitelists
libselinux-devel libtool
On 6/22/22 21:08, Jian Yu wrote:
Hi Thomas,
The issue is being fixed in https://jira.whamcloud.com/browse/LU-15962.
A workaround is to build Lustre with "--with-o2ib=<path>" configure option.
The <path> is where in-kernel Module.symvers is located.
--
Best regards,
Jian Yu
-----Original Message-----
From: lustre-discuss <[email protected]> on behalf of Thomas Roth via
lustre-discuss <[email protected]>
Reply-To: Thomas Roth <[email protected]>
Date: Wednesday, June 22, 2022 at 10:32 AM
To: Andreas Dilger <[email protected]>
Cc: lustre-discuss <[email protected]>
Subject: Re: [lustre-discuss] Installing 2.15 on rhel 8.5 fails
Hmm, but we are using the in-kernel OFED, so this makes these messages all
the more mysterious.
Regards,
Thomas
On 22/06/2022 19.12, Andreas Dilger wrote:
> On Jun 22, 2022, at 10:40, Thomas Roth via lustre-discuss
<[email protected]<mailto:[email protected]>> wrote:
>
> my rhel8 system is actually an Alma Linux 8.5 installation, this is the first time the
compatiblity to an alleged rhel8.5 software fails...
>
>
> The system is running kernel '4.18.0-348.2.1.el8_5'
> This version string can also be found in the package names in
>
https://downloads.whamcloud.com/public/lustre/lustre-2.15.0/el8.5.2111/server/RPMS/x86_64
> - this is usually a good sign.
>
> However, installation of kmod-lustre-2.15.0-1.el8 yields the well known
"depmod: WARNINGs", like
>> /lib/modules/4.18.0-348.2.1.el8_lustre.x86_64/extra/lustre/net/ko2iblnd.ko needs unknown
symbol __ib_alloc_pd
>
>
> The kernel from
downloads.whamcloud.com/public/lustre/lustre-2.15.0/el8.5.2111/server/RPMS/x86_64 identifies itself
as "CentOS" and does not want to boot - no option either.
>
>
> Any hints how to proceed?
>
> The ko2iblnd module is built against the in-kernel OFED, so if you are using MOFED you will
need to rebuild the kernel modules themselves. If you don't use IB at all you can ignore these
depmod messages.
>
> Cheers, Andreas
> --
> Andreas Dilger
> Lustre Principal Architect
> Whamcloud
>
--
--------------------------------------------------------------------
Thomas Roth
Department: Informationstechnologie
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