linux-ext4 - Re: EXT4-fs (mmcblk0p1): couldn't mount as ext3 due to feature incompatibilities

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Date:   Fri, 2 Mar 2018 11:14:13 -0500
From:   Theodore Ts'o <tytso@....edu>
To:     Joakim Tjernlund <Joakim.Tjernlund@...inera.com>
Cc:     "lczerner@...hat.com" <lczerner@...hat.com>,
        "sandeen@...hat.com" <sandeen@...hat.com>,
        "linux-ext4@...r.kernel.org" <linux-ext4@...r.kernel.org>
Subject: Re: EXT4-fs (mmcblk0p1): couldn't mount as ext3 due to feature
 incompatibilities

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? :-)

					- Ted