Re: Modifying container storage for Fedora 26.

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Does it make sense to move all the products to XFS? An exception may
be possible for cloud images [1]

Server uses XFS. Cloud/Atomic have expressed a preference for it. I
found that ext4 allocates inodes at mkfs time, and there's no way to
get more later, and there's a real possibility with overlayfs that
there can be inode exhaustion. [2] Yes, you can just use non-default
mkfs options to create more inodes, but installer folks are typically
reluctant to use non-default mkfs options. XFS and Btrfs have
dynamically allocated inodes.

Is there any advantage of LVM for Cloud/Atomic? What about
Workstation? Dropping it for cloud/atomic may be an advantage, more
compact, less wasted space, less overhead, one less layer. For
Workstation it's probably a wash. Many users are confused by it, few
benefit from it. But the documentation refers to it.


---
Chris Murphy


[1]
Syslinux is preferred because it significantly reduces cloud image
size. The problem is this extlinux + ext4 bug. While syslinux 6.04
supports XFS, and builds are in koji, it's not finalized yet upstream.
So if this syslinux + ext4 bug gets fixed, then use use that
combination. Otherwise, GRUB + XFS.
Fedora 25 cloud images built with syslinux do not boot
https://bugzilla.redhat.com/show_bug.cgi?id=1369934

[2]
https://lists.fedoraproject.org/archives/list/cloud@xxxxxxxxxxxxxxxxxxxxxxx/message/47PC3YHBR7LTIDSDCZERROWRLEFOSVP7/
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