after restore from clonezilla (old disk crashed & replaced with new same size ) .
Partition restored according to clonezilla info was ext4 .
#cat /etc/fstab
....
/dev/root on / type ext4 (rw,relatime,barrier=1,data=ordered)
/dev/sdb4 on /usr type ext4 (rw)
....
Both partitions are ext4 why /user is (rw) and /root is so complicated ?
Can i leave it like this or i must correct it ?
How can i correct it ?

Slackware 13.37
#uname -a
Linux 2.6.37.6-smp #2 SMP
#mount -V
mount from util-linux 2.19 (with libblkid support)
# tune2fs -l /dev/sda3
tune2fs 1.41.14 (22-Dec-2010)
Filesystem volume name: <none>
Last mounted on: /
Filesystem UUID: 7990819c-52eb-4b9e-9164-f7fe8124d71c
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super large_file huge_file uninit_bg dir_nlink extra_isize
Filesystem flags: signed_directory_hash
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 5545984
Block count: 22181748
Reserved block count: 1109087
Free blocks: 17572149
Free inodes: 5468435
First block: 0
Block size: 4096
Fragment size: 4096
Reserved GDT blocks: 1018
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
Flex block group size: 16
Filesystem created: Fri Jan 8 23:54:37 2010
Last mount time: Thu Jun 30 14:40:43 2011
Last write time: Wed Jun 29 20:37:20 2011
Mount count: 3
Maximum mount count: 34
Last checked: Wed Jun 29 22:54:19 2011
Check interval: 15552000 (6 months)
Next check after: Mon Dec 26 21:54:19 2011
Lifetime writes: 212 GB
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 256
Required extra isize: 28
Desired extra isize: 28
Journal inode: 8
Default directory hash: half_md4
Directory Hash Seed: 905c9d93-0d7c-4ef4-9d6c-a885fbcdc72d
Journal backup: inode blocks

Thanks in advance
Panos

Seems that something just copyied the output of the mount command into the fstab .
would tell a little about the syntax .

The "on" , "type" and "("'s shouldn't be in there .

What is complicated . Do you mean the many "Filesystem features" ?

If you don't want to experiment use "auto" for the filesystem .

For documentation on the available options for non-
nfs file systems, see "man 8 mount"(8)

/dev/root is a sym link. I think the information in /etc/fstab should be to the actual phyiscal partition. For example:

/dev/sda3 on / type ext4 (rw,relatime,barrier=1,data=ordered)

I think udev creates the /dev/root sym link.