.\" -*- nroff -*-
.TH CHATTR 1 "@E2FSPROGS_MONTH@ @E2FSPROGS_YEAR@" "E2fsprogs version @E2FSPROGS_VERSION@"
.SH NAME
-chattr \- change file attributes on a Linux second extended file system
+chattr \- change file attributes on a Linux file system
.SH SYNOPSIS
.B chattr
[
.I files...
.SH DESCRIPTION
.B chattr
-changes the file attributes on a Linux second extended file system.
+changes the file attributes on a Linux file system.
.PP
-The format of a symbolic mode is +-=[ASacDdeIijsTtu].
+The format of a symbolic mode is +-=[acdeijstuADST].
.PP
The operator `+' causes the selected attributes to be added to the
existing attributes of the files; `-' causes them to be removed; and
`=' causes them to be the only attributes that the files have.
.PP
-The letters `acdijsuADST' select the new attributes for the files:
-append only (a), compressed (c), no dump (d), immutable (i),
+The letters `acdeijstuADST' select the new attributes for the files:
+append only (a), compressed (c), no dump (d), extent format (e), immutable (i),
data journalling (j), secure deletion (s), no tail-merging (t),
undeletable (u), no atime updates (A), synchronous directory updates (D),
synchronous updates (S), and top of directory hierarchy (T).
+.PP
+The following attributes are read-only, and may be listed by
+.BR lsattr (1)
+but not modified by chattr: huge file (h), compression error (E),
+indexed directory (I), compression raw access (X), and compressed dirty
+file (Z).
.SH OPTIONS
.TP
.B \-R
although it can be displayed by
.BR lsattr (1).
.PP
-The 'H' attribute indicates the file is storing its blocks in units of the
+The 'h' attribute indicates the file is storing its blocks in units of the
filesystem blocksize instead of in units of sectors, and means that the file
is (or at one time was) larger than 2TB. It may not be set or reset using
.BR chattr (1),
idea to set the 'T' attribute on the /home directory, so that /home/john
and /home/mary are placed into separate block groups. For directories
where this attribute is not set, the Orlov block allocator will try to
-group subdirectories closer together where posible.
+group subdirectories closer together where possible.
.PP
A file with the 't' attribute will not have a partial block fragment at
the end of the file merged with other files (for those filesystems which