Re: EXT4-fs (mmcblk0p1): couldn't mount as ext3 due to feature incompatibilities

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On Fri, 2018-03-02 at 11:29 -0500, Theodore Ts'o wrote:
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> 
> On Fri, Mar 02, 2018 at 11:14:13AM -0500, Theodore Ts'o wrote:
> > On Fri, Mar 02, 2018 at 03:20:22PM +0000, Joakim Tjernlund wrote:
> > > 
> > > But I don't hav ext3, only ext4 in kernel:
> > > # CONFIG_EXT2_FS is not set
> > > # CONFIG_EXT3_FS is not set
> > > CONFIG_EXT4_FS=y
> > 
> > What version of the kernel are you using?  The ext3 file system has
> > been removed from the upstream kernel for quite some time, so this
> > must be a kernel missing lots of security bug fixes.  (E.g., an
> > obsolete distribution kernel? :-)
> 
> Never mind, the "CONFIG_EXT3_FS is not set" confused me.  We still
> have this for backwards compatibility with old kernel configs.
> 
> So I'm not seeing this behavior at all.  I created an ext4 file system
> on /dev/cwcc/scratch, and then ran:
> 
> # mount -t auto /dev/cwcc/scratch /mnt

Seems like it only hits when mounting from fstab, I have

LABEL=BOOT		/boot		auto		noatime		1 2

Anyhow, Eric's patch solved the problem.

 Jocke




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