Comment 11 for bug 1775424

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Ryan Harper (raharper) wrote :

The source of the issue is around the ext4 filesystem and grub 0.97[1]. In Bionic, ext4 has 64bit and metadata_csum features which grub 0.97 in Centos6 cannot handle read. There are couple of workarounds here:

A) Use Xenial to deploy Centos6
B) If you use bionic, then you'll need custom storage where you create a /boot partition smaller than 512Mb and put either ext2 or ext3 as the filesystem format.

1. https://bugzilla.redhat.com/show_bug.cgi?id=1099237