Re: Richacl and ext4 vs. xfs

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On Fri, Nov 4, 2016 at 11:48 PM, Andreas Dilger <adilger@xxxxxxxxx> wrote:
> [added linux-ext4 to CC list]
>
> On Nov 4, 2016, at 1:19 PM, Steve French <smfrench@xxxxxxxxx> wrote:
>>
>> Andreas,
>> I had been working on getting some VMs together to experiment with a
>> few different Richacl configurations and it looks like the e2fsprogs
>> git hub repo with richacl enhanced ext4 utilities may need to be
>> updated or have an incompatibility with current kernels (See e2fsprogs
>> github link at http://www.bestbits.at/richacl/ ).  XFS worked ok.
>>
>> Fedora 24 Workstation, created two extra disks
>> /dev/sdb for xfs
>> /dev/sdc for ext4
>>
>> Built and installed Andreas's 4.9.0-rc1 based kernel richacl branch
>> and the other repos (xfsprogs, richacl etc.).    Had no problem
>> formatting and using /dev/sdb1 as xfs, but once I installed e2fsprogs
>> from Andreas's tree I couldn't boot the system (removed e2fsprogs and
>> the ext4 partition and booted fine).  With Andreas's e2fsprogs I
>> couldn't boot 4.9.0-rc1
>
> What version of e2fsprogs is (the other) Andreas' tree based on?  The
> newer e2fsprogs-1.43 has support for metadata checksums, but this should
> be off by default in the released version.  The testing version had it
> enabled by default.

The richacl patches were based on v1.42.12+. They only define a new
"richacl" feature flag, so I don't think they are to blame for the
failure Steve is seeing. I've still rebased the patches onto v1.43.3+
now.

Steve, I assume that /dev/sdc is not the root filesystem or listed in
/etc/fstab; if so, then the device will have no influence on booting.

Does the richacl kernel use an initrd? If so, then please check for
mkinitrd errors: I've seen versions of mkinitrd (dracut) that use a
blkid option that isn't part of e2fsprogs v1.42. Not sure if v1.43 has
this fixed or if this is a distro specific problem.

Thanks,
Andreas
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