Migration from CentOS 7 to AlmaLinux 8.5

[Dennis]

Hi,

I have managed to migrate a server from CentOS 7 to Almalinux 8.5.

When I try to ./build all I get the following error in the Exim build:

In file included from /usr/include/linux/kernel.h:5, from /usr/include/sys/sysinfo.h:24, from os.c:39: /usr/include/linux/sysinfo.h:9:2: error: unknown type name '__kernel_long_t' __kernel_long_t uptime; /* Seconds since boot */ ^~~~~~~~~~~~~~~ /usr/include/linux/sysinfo.h:10:2: error: unknown type name '__kernel_ulong_t' __kernel_ulong_t loads[3]; /* 1, 5, and 15 minute load averages */ ^~~~~~~~~~~~~~~~

I searched the internet but canot find a solution.

Does anybody have a hint?

Thanks in advance!

 

[Active8]

How did you upgrade ? with Elevate project or manual ??

 

[Dennis]

With the Elevate project.

 

[factor]

Almalinux 8.5.

Run the pre install commands

yum install wget gcc gcc-c++ flex bison make bind bind-libs bind-utils openssl openssl-devel perl quota libaio \
libcom_err-devel libcurl-devel gd zlib-devel zip unzip libcap-devel cronie bzip2 cyrus-sasl-devel perl-ExtUtils-Embed \
autoconf automake libtool which patch mailx bzip2-devel lsof glibc-headers kernel-devel expat-devel \
psmisc net-tools systemd-devel libdb-devel perl-DBI perl-libwww-perl xfsprogs rsyslog logrotate crontabs file kernel-headers hostname

then try the ./build all

 

[Active8]

You did follow the how to on this forum?

 

[factor]

I think he means this one.

How to: inplace upgrade from Centos 7 to Almalinux 8.5

Just converted (in place upgrade) an DA Centos 7 box to Almalinux 8.5 As promised short tutorial that I made, many thanks and credits to @dmtinc to his support, good to mention that I did not had any network problems :) It took almost 1,5 hour on an VPS 6 vCPU and 16 gb of ram so do your math...

forum.directadmin.com

 

[Dennis]

@bdacus01 I tried that and it stops at the Exim rebuild with these errors.

@Active8 I first used the migration info of TransIP (https://www.transip.nl/knowledgebase/artikel/5284-centos-7-upgraden-naar-almalinux/) Then saw your how-to but too late...

 

[factor]

fall back to a snapshot? then try again.

 

[Dennis]

@bdacus01 I have a feeling that is the only option left....

Or a fresh install and move the accounts to the new server.

 

[Active8]

Transip have automated backups , try to restore and as @bdacus01 said try it again and share your experience here

 

[Dennis]

Ok, snapshot is restored.
Going to follow your how to the next time @Active8

Thanks, both, for your quick response

 

[Richard G]

I presume you rebooted before doing the rebuild of DA right?

I'm very curious as to the next attempt and if it succeeds. Be sure to only use official DA mirrors.

 

[Dennis]

@Richard G Yep, did all the steps and had a new OS when I checked the /etc/os-release.
Also the leapp preupgrade was all green. No errors what so ever.

In the end, I also had some random reboots when the server was online, but the SSD made it ook like an internet hiccup....(it is a testserver fortunately). So something was wrong after or in the upgrade.

Going for the how-to which Active8 made and see how that turns out next run.