Informix: v14/v15 on ubuntu 24(26) debian 12(13)

Hi any chance or sign that v14 and v15 will be certified on ubuntu 24, ubuntu 26, debian 12 od debian 13? We are in 2026 aren't we? Hrvoje ------------------------------ Hrvoje Zokovic Technical Support Director ALFATEC Group Zagreb ------------------------------

Starting with Version 14.10.xC14, Ubuntu 24.04 has been added to the OS List: https://www.ibm.com/docs/en/informix-servers/14.10.0?topic=1410xc14-release-notes-informix-unix-linux <https://www.ibm.com/docs/en/informix-servers/14.10.0?topic=1410xc14-release-notes-informix-unix-linux>; https://help.hcl-software.com/hclinformix/1410/1infocenter/r_system_req.html <https://help.hcl-software.com/hclinformix/1410/1infocenter/r_system_req.html>; For Version 15.0 this entry is still missing, but the installation is working without problems (reported by community and own experience) Mit freundlichen Grüßen / Kind regards Gerd Kaluzinski Delivery Consultant Data IBM Technology Expert Labs Phone: +49 175 228 1983 IBM Deutschland GmbH Email: gerd.kaluzinski@de.ibm.com <gerd.kaluzinski@de.ibm.com> Mies-van-der-Rohe-Straße 6, 80807 München IBM Deutschland GmbH Vorsitzender des Aufsichtsrats: Ivo Körner Geschäftsführung: Wolfgang Wendt (Vorsitzender), Dr. Andreas Buchelt, Dr. Frank Kohls, Christine Rupp Sitz der Gesellschaft: Ehningen / Registergericht: Amtsgericht Stuttgart, HRB 14562

Hi, I have been writing something about Ifx 15 on Ubuntu 24 a while ago: Informix 15 runs out of the box on a Ubuntu 24.04 machine, at least when sysctl fs.protected_regular = 0 is set. (which is documented, but is not very nice workaround because the setting is a protection against attacks). The resulting message when the setting is not correct says something about shared memory, which is not the underlying cause. The real cause for this is the file handling in /INFORMIXTMP folder (which is flagged with a t marker). Informix startup process internally generates a file there (as root, applying chmod 666 to the file, then switches to informix user and tries to delete the file as informix, which is not allowed because of the t flag.) But it needs to be pimped in order to use libaio, which has been re-packaged with different file names, and all the other stuff is just that same as in previous Ubuntu versions (starting from 20.04 I think). New package is libaio1t64, which installs /usr/lib/x86_64-linux-gnu/libaio.so.1t64.0.2 Informix searches for libaio.so.1 Just make a symlink in /usr/lib/x86_64-linux-gnu (ln -s libaio.so.1t64 libaio.so.1): lrwxrwxrwx 1 root root 14 Mai 4 09:18 libaio.so.1 -> libaio.so.1t64 The fs.protected_regular setting is needed, for newer kernels than 4.19, if the OS has the option set to 1 or 2 initially. Another thing which is probably also recommended on all Linux flavours which have systemd enabled, would be to set RemoveIPC=no in logind.conf. We ran into a broken instance once when taking a full backup with ontape using a nightly cron job running as informix user. When the job terminated, systemd killed all the shared memory segments, resulting in a crash. Interestingly, I found this recommendation also in an Oracle DB document ... Marcus Haarmann

Thank you Gerd. Can someone wake up guys working on official page https://www.ibm.com/support/pages/informix-server-system-requirements Last modified Jan 15 but still no sign of ubuntu > 22 And I know it is working, but customer knows what they see on official page Regards Hrvoje ------------------------------ Hrvoje Zokovic Technical Support Director ALFATEC Group Zagreb ------------------------------

Thank you Marcus, I know it is working since it is working on my lab VMs But customer do care what is written on official page. Regards Hrvoje ------------------------------ Hrvoje Zokovic Technical Support Director ALFATEC Group Zagreb ------------------------------

@Hrvoje Zokovic <https://community.ibm.com/community/user/profile?UserKey=b58783ff-15c9-45d0-8144-06278fe450e4>; We have recently certified Ubuntu 24(Ubuntu 24.04.3 LTS (Noble Numbat)) with below Informix Release Versions, 14.10.FC13W13 15.0.1.14 ------------------------------ Rahul Dharak ------------------------------

@Hrvoje Zokovic <https://community.ibm.com/community/user/profile?UserKey=b58783ff-15c9-45d0-8144-06278fe450e4>; We have recently certified Ubuntu 24(Ubuntu 24.04.3 LTS (Noble Numbat)) for below Informix Release Versions, 14.10.FC13W13 15.0.1.14 ------------------------------ Rahul Dharak ------------------------------

Marcus "Another thing which is probably also recommended on all Linux flavours which have systemd enabled, would be to set RemoveIPC=no in logind.conf. We ran into a broken instance once when taking a full backup with ontape using a nightly cron job running as informix user. When the job terminated, systemd killed all the shared memory segments, resulting in a crash. Interestingly, I found this recommendation also in an Oracle DB document ..." Thanks you so much for posting this as I was testing on debain13 and whilst ontape -r works fine, ontape -p dies after the first round of continuous log restore. I had NO idea where ot even start looking. ------------------------------ Clive Eisen ------------------------------

https://www.oninit.com/reference/semop_eidrm/ <https://www.oninit.com/reference/semop_eidrm/>; i posted this the other - the same issue as Clive is describing and a pain to track down Paul Watson www.oninit.com Tel: +1 913 387 7529