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Re: xfsprogs 4.16.0 format change, GRUB error unknown filesystem

From: Chris Murphy
Subject: Re: xfsprogs 4.16.0 format change, GRUB error unknown filesystem
Date: Tue, 15 May 2018 16:09:44 -0600

On Tue, May 15, 2018 at 6:33 AM, Daniel Kiper <address@hidden> wrote:
> Hi,
> On Mon, May 14, 2018 at 01:12:27PM -0600, Chris Murphy wrote:
>> Hi,
>> xfsprogs 4.16.0 defaults to enabling "sparse inode" which is not
>> compatible with GRUB.
>> Downstream bug in Fedora, grub-probe fails so grub-install can't work;
>> and on systems with an already properly installed core.img with XFS
>> support, it can't read an XFS file system with this feature set.
>> Make them default
>> Change description, page 48
>> It'd be helpful to know the approximate time frame for getting this
>> fixed, to know whether for Fedora 29 /boot on XFS should be inhibited
>> until a proper tested patch for GRUB exists.
> Sorry, I do not have resources right now to do that. However,
> if somebody will post the patches I am happy to review them.

OK thanks for the update.

We appear to have a near term work around for the installer: if /boot
is XFS, then format with '-i sparse=0' which will avoid the problem.
Meanwhile / or /home still use the new default of sparse=1.

Chris Murphy

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