> Filesystem features: has_journal resize_inode dir_index filetype
64bit sparse_super large_file
What could be causing this error and what does "80" refer to?
For some reason the 64bit feature is set in the filesystem. This should
only be set for ext4dev filesystems. Are you specifying this feature
yourself e.g. "mke2fs -O 64bit ..."? Your filesystem is only 2.7TB so
you don't need the 64bit feature set and it doesn't really help you
unless you plan to expand the logical volume past 16TB.
Indeed, it appears that my initial assumption is correct. mke2fs
contains ext4dev code and it erroneously applies the 64bit flag to
filesystems > 2 TB by default. I confirmed this by creating a 1999G
filesystem and it didn't get the 64bit flag. I then resized it 3000G,
and luckily resize2fs doesn't contain this code or attempt to adjust
the flags. The filesystem checked OK in fsck and is now mounting
properly.
--
Maurice Volaski, mvolaski@xxxxxxxxxxxx
Computing Support, Rose F. Kennedy Center
Albert Einstein College of Medicine of Yeshiva University
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