On a fully working box at the grub> prompt 'ls (hd0,2)', lists the centos7 /boot files, and 'ls (hd0,3)' lists the centos6 /boot files. On the recalcitrant box at the grub> prompt 'ls (hd0,2)', lists the centos7 /boot files, but 'ls (hd0,3)' says "error: unknown filesystem." looking further, on the fully working box parted shows ext3 under 'File system' (and raid under 'Flags') for sd[ab]3, but on the other parted shows nothing under 'File system' (and raid under 'Flags') for sd[ab]3. interesting that grub clearly has no trouble fetching grub.conf to present the legacy_configfile menu, but when it comes to fetching the files in the grub.conf entries, from the same filesystem, it won't. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20171122/007114c9/attachment.html>