Bug 2108243
| Summary: | redhat-upgrade-tool fails to update kernel entry in grub.conf | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Pradeep Jagtap <prjagtap> |
| Component: | redhat-upgrade-tool | Assignee: | Petr Stodulka <pstodulk> |
| Status: | CLOSED DUPLICATE | QA Contact: | Release Test Team <release-test-team-automation> |
| Severity: | high | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 6.10 | CC: | cchouhan, phracek, pstodulk, renju.roy, rmetrich, snavale, sujagtap |
| Target Milestone: | rc | Keywords: | Extras |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2023-03-13 16:37:32 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2166233 | ||
| Bug Blocks: | |||
The issue is caused by the change in the target kernel, which switched the adding of new kernel entry in grub configuration file from the %post phase to %posttrans phase, to add the new entry only after the initramfs is generated (bug #1893756). Regarding that, the update of the bootloader entries fails as there is no installed kernel when the scriptlet is running so it cannot obtain default kernel parameters. snippet of the debug output: ~~~ # /usr/sbin/new-kernel-pkg --package kernel --mkinitrd --dracut --depmod --install 3.10.0-1160.88.1.el7.x86_64 .....[snip] ++ eval /sbin/grubby --grub -c /boot/grub/grub.conf --add-kernel=/boot/vmlinuz-3.10.0-1160.88.1.el7.x86_64 --initrd /boot/initramfs-3.10.0-1160.88.1.el7.x86_64.img '--title="Red' Hat Enterprise Linux Server '(3.10.0-1160.88.1.el7.x86_64)' 7.9 '(Maipo)$debugtitle"' --copy-default '--args="root=/dev/mapper/vg_rhelmin6-lv_root' LANG=en_US.UTF-8 '$debugargs"' '--remove-kernel="TITLE=Red' Hat Enterprise Linux Server '(3.10.0-1160.88.1.el7.x86_64)' 7.9 '(Maipo)$debugtitle"' --make-default +++ /sbin/grubby --grub -c /boot/grub/grub.conf --add-kernel=/boot/vmlinuz-3.10.0-1160.88.1.el7.x86_64 --initrd /boot/initramfs-3.10.0-1160.88.1.el7.x86_64.img '--title=Red Hat Enterprise Linux Server (3.10.0-1160.88.1.el7.x86_64) 7.9 (Maipo)' --copy-default '--args=root=/dev/mapper/vg_rhelmin6-lv_root LANG=en_US.UTF-8 ' '--remove-kernel=TITLE=Red Hat Enterprise Linux Server (3.10.0-1160.88.1.el7.x86_64) 7.9 (Maipo)' --make-default grubby fatal error: unable to find a suitable template ~~~ The probllem here is that `--copy-default` cannot find anything from where the parameters should be copied so it crashes. The workaround could be to call the grubby command during post-upgrade phase (after the rpm transaction), delivering all arguments on our own (e.g. copy /proc/cmdline when still booted in RHEL 6 system and delivery the stuff...). But I can imagine there could be bunch of corner cases doing this in this way and i consider much safer to actually fix (or revert the fix) in the target el7 kernel to run the scriptlet again during the post phase as before. For more information, see the bug 2166233. Just for the full info, the issue is affecting RHEL 6 systems on intel architecture - with BIOS or EFI boot, does not matter. Closing the ticket as the bug is going to be fixed in rhel7 kernel. Follow please bug 2166233 for further updates. It seems the bug will be fixed in kernel-3.10.0-1160.89.1.el7.x86_64.rpm or newer. *** This bug has been marked as a duplicate of bug 2166233 *** |
Description of problem: ======================= redhat-upgrade-tool fails to update kernel entry in grub.conf Version-Release number of selected component (if applicable): ============================================================ redhat-upgrade-tool-0.8.0-9.el6.noarch How reproducible: ================== Use latest RHEL 7.9 Installation repository Steps to Reproduce: ================== 1. Once preupg is completed without error 2. Run upgrade with # redhat-upgrade-tool --network 7.9 --instrepo ftp-or-http-url --cleanup-post 3. System would be prompted for reboot. Reboot the system 4. Now system will boot with Upgrade initramfs 5. Once done it would fail to get proper entry of RHEL 7 kernel in grub and system fails. Actual results: ================ Fails to see RHEL 7 kernel entry in grub.conf Expected results: ==================== Grub.conf should have kernel entry with all older grub parameters Additional info: ================ Issue is only see when Installation repository kernel-3.10.0-1160.62.1.el7.x86_64.rpm or above version kernel No issue found whne installation repository has older kernel than kernel-3.10.0-1160.62.1.el7.x86_64.rpm