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On a system with md version 0.9 partitions, the upgrade worked partially. This system was installed with Centos5 installer, creating md-Raid1 version 0.9 partitions. Later it was upgraded to Centos6 via upgradeany method. Upgrading this system to Centos7 with redhat-upgrade-tool worked partially. The upgrade started, but the upgrade-kernel did not detect the md partitions. In the F2 dracut console i did a "mdadm --assemble --scan", followed by "exit". Then the upgrade process continued until finished. However grub2 was not activated. At reboot into the upgraded system, it hang for several minutes until giving a dracut shell. There "mdadm --assemble --scan", followed by "exit" continued the boot. Then i manually activated grub2: "grub2-mkconfig -o /boot/grub2/grub.cfg" "dracut --force --mdadmconf" "grub2-install /dev/sda" "grub2-install /dev/sdb" Hope this helps someone. |
- Anonymous
