linux-kernel - Re: EXT4: new warnings from 4.3.0-rc2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 21 Sep 2015 15:27:15 +0200
From:	Ortwin Glück <odi@....ch>
To:	Chris Clayton <chris2553@...glemail.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: EXT4: new warnings from 4.3.0-rc2

 > [    2.481399] EXT4-fs (sda2): couldn't mount as ext3 due to feature incompatibilities
 > [    2.482426] EXT4-fs (sda2): couldn't mount as ext2 due to feature incompatibilities

As the kernel doesn't know which FS your root is, it tries the whole list of filesystems 
(init/do_mounts.c mount_block_root()). Since the removal of ext3, now the ext4 code is responsbile 
for mounting ext3. Since your FS is ext4 and not ext3, the probe for ext3 fails. That's what the 
message tells you. You get these even in previous kernels if you say N to ext3 during config.

If it bugs you, you can add a hint to your kernel command line: rootfstype=ext4

Ortwin
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/