I am using Debian Lenny (5.0) with 2.6.28 kernel. I recently noticed that whenever I *boot* from USB device - /dev/sda (which has ext2 filesystem) I get following strange EXT4 kernel messages:
Code:
debian:~# dmesg | grep EXT4
[ 9.766709] EXT4-fs warning (device sda1): ext4_fill_super: extents feature not enabled on this filesystem, use tune2fs.
[ 9.771518] EXT4-fs: Update your userspace programs to mount using ext4
[ 9.771534] EXT4-fs: ext4dev backwards compatibility will go away by 2.6.31
[ 9.772139] EXT4-fs warning (device sda1): ext4_fill_super: extents feature not enabled on this filesystem, use tune2fs.
debian:~#
Code:
debian:~# cat /boot/config-2.6.28-1-486 | grep EXT4
CONFIG_EXT4_FS=y
CONFIG_EXT4DEV_COMPAT=y
CONFIG_EXT4_FS_XATTR=y
# CONFIG_EXT4_FS_POSIX_ACL is not set
# CONFIG_EXT4_FS_SECURITY is not set
debian:~#
Code:
debian:~# fdisk -l /dev/sda
Disk /dev/sda: 80.0 GB, 80026361856 bytes
255 heads, 63 sectors/track, 9729 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0xfb8015cd
Device Boot Start End Blocks Id System
/dev/sda1 1 9729 78148192 83 Linux
debian:~#
However I don't get the messages if I boot from a regular hard drive with the USB drive attached to the system.
Do I really need to do something about these messages?
