[ceph-users] Re: Ceph Quincy and liburing.so.2 on Rocky Linux 9

[dobrie2]

Konstantin Shalygin wrote:
> Hi,
> 
> In most cases the 'Alternative' distro like Alma or Rocky have outdated 
> versions
> of packages, if we compared it with CentOS Stream 8 or CentOS Stream 9. For 
> example is a
> golang package, on c8s is a 1.20 version on Alma still 1.19
> 
> You can try to use c8s/c9s or try to contribute to your distro to resolve 
> dependency
> issues
> 
> 
> k

By definition, the stable version of anything is going to have "outdated 
versions of packages," so that's not really what's going on here.

You did, unintentionally, give me the clue I needed, though. I accessed the 
Ceph repos from Rocky's Extras repo, which includes centos-release-ceph-quincy

centos-release-ceph-pacific.noarch1.0-2.el9 
 CEC_Rocky_Linux_9_Rocky_92_extras
centos-release-ceph-quincy.noarch 1.0-2.el9 
 CEC_Rocky_Linux_9_Rocky_92_extras
centos-release-cloud.noarch   1-1.el9   
 CEC_Rocky_Linux_9_Rocky_92_extras

Which is pointing to 9-stream. (I do remember seeing "9s" in the repo names, 
but I didn't connect it with Stream, since I don't do Stream in production and, 
honestly, I don't have enough time at work to do Stream in test, so...)

>From /etc/yum.repos.d/CentOS-Ceph-Quincy.repo:
metalink=https://mirrors.centos.org/metalink?repo=centos-storage-sig-ceph-quincy-9-stream&arch=$basearch

Which is why I'm getting different dependencies. THAT I can take to the Rocky 
folks to get sorted. I can see where that would cause confusion, as it did in 
my case. When I originally installed Ceph, I was using RHEL, not Rocky and I 
didn't use (or have?) the Extras repo. I copied the repo over and edited it to 
point to Ceph Reef EL9, which installed fine -- and confused me further, but 
makes sense now since it wasn't for Stream.

I'll roll my own repo files and not use the centos-release-ceph-* from Extras. 
Hopefully, this saves someone else a bit of grief later!

Thanks!
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[ceph-users] Ceph Quincy and liburing.so.2 on Rocky Linux 9

[dobrie2]

I've been digging and I can't see that this has come up anywhere.

I'm trying to update a client from Pacific 17.2.3-2 to 17.2.6-4 and I'm getting 
the error

Error: 
 Problem: cannot install the best update candidate for package 
ceph-base-2:17.2.3-2.el9s.x86_64
  - nothing provides liburing.so.2()(64bit) needed by 
ceph-base-2:17.2.6-4.el9s.x86_64
  - nothing provides liburing.so.2(LIBURING_2.0)(64bit) needed by 
ceph-base-2:17.2.6-4.el9s.x86_64
(try to add '--skip-broken' to skip uninstallable packages or '--nobest' to use 
not only best candidate packages)

Did Ceph Pacific switch to requiring liburing 2? Rocky 9 only provides 0.7-7. 
CentOS stream seems to have 1.0.7-3 (at least back to when I set up that repo 
on Foreman; I don't remember if I'm keeping it up-to-date).

Can I/should I just do --nobest when updating? I could probably build it from a 
source RPM from another RH-based distro, but I'd rather keep it clean with the 
same distro.
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