Linux From Scratch - Version 6.1.1

Chapter 6. Installing Basic System Software

6.43. E2fsprogs-1.37

The E2fsprogs package contains the utilities for handling theext2file system. It also supports theext3journaling file system.

Approximate build time: 0.6 SBU
Required disk space: 40.0 MB
Installation depends on: Bash, Binutils, Coreutils, Diffutils, Gawk, GCC, Gettext, Glibc, Grep, Make, Sed, and Texinfo

6.43.1. Installation of E2fsprogs

Fix a compilation error in E2fsprogs' testsuite

sed -i -e 's/-DTEST/$(ALL_CFLAGS) &/' lib/e2p/Makefile.in

It is recommended that E2fsprogs be built in a subdirectory of the source tree

mkdir -v build
cd build

Prepare E2fsprogs for compilation

../configure --prefix=/usr --with-root-prefix="" \
    --enable-elf-shlibs --disable-evms

The meaning of the configure options

--with-root-prefix=""

Certain programs (such as the e2fsck program) are considered essential programs. When, for example,/usris not mounted, these programs still need to be available. They belong in directories like/liband/sbin. If this option is not passed to E2fsprogs' configure, the programs are installed into the/usrdirectory.

--enable-elf-shlibs

This creates the shared libraries which some programs in this package use.

--disable-evms

This disables the building of the Enterprise Volume Management System (EVMS) plugin. This plugin is not up-to-date with the latest EVMS internal interfaces and EVMS is not installed as part of a base LFS system, so the plugin is not required. See the EVMS website at http://evms.sourceforge.net/ for more information regarding EVMS.

Compile the package

make

To test the results, issue: make check.

Install the binaries and documentation

make install

Install the shared libraries

make install-libs

6.43.2. Contents of E2fsprogs

Installed programs: badblocks, blkid, chattr, compile_et, debugfs, dumpe2fs, e2fsck, e2image, e2label, findfs, fsck, fsck.ext2, fsck.ext3, logsave, lsattr, mk_cmds, mke2fs, mkfs.ext2, mkfs.ext3, mklost+found, resize2fs, tune2fs, and uuidgen.
Installed libraries: libblkid.[a,so], libcom_err.[a,so], libe2p.[a,so], libext2fs.[a,so], libss.[a,so], and libuuid.[a,so]

Short Descriptions

badblocks

Searches a device (usually a disk partition) for bad blocks
blkid

A command line utility to locate and print block device attributes
chattr

Changes the attributes of files on anext2file system; it also changesext3file systems, the journaling version ofext2file systems
compile_et

An error table compiler; it converts a table of error-code names and messages into a C source file suitable for use with thecom_errlibrary
debugfs

A file system debugger; it can be used to examine and change the state of anext2file system
dumpe2fs

Prints the super block and blocks group information for the file system present on a given device
e2fsck

Is used to check, and optionally repairext2file systems andext3file systems
e2image

Is used to save criticalext2file system data to a file
e2label

Displays or changes the file system label on theext2file system present on a given device
findfs

Finds a file system by label or Universally Unique Identifier (UUID)
fsck

Is used to check, and optionally repair, file systems
fsck.ext2

By default checksext2file systems
fsck.ext3

By default checksext3file systems
logsave

Saves the output of a command in a log file
lsattr

Lists the attributes of files on a second extended file system
mk_cmds

Converts a table of command names and help messages into a C source file suitable for use with thelibsssubsystem library
mke2fs

Creates an ext2 or ext3 file system on the given device
mkfs.ext2

By default createsext2file systems
mkfs.ext3

By default createsext3file systems
mklost+found

Used to create alost+founddirectory on anext2file system; it pre-allocates disk blocks to this directory to lighten the task of e2fsck
resize2fs

Can be used to enlarge or shrink anext2file system
tune2fs

Adjusts tunable file system parameters on anext2file system
uuidgen

Creates new UUIDs. Each new UUID can reasonably be considered unique among all UUIDs created, on the local system and on other systems, in the past and in the future
libblkid

Contains routines for device identification and token extraction
libcom_err

The common error display routine
libe2p

Used by dumpe2fs, chattr, and lsattr
libext2fs

Contains routines to enable user-level programs to manipulate anext2file system
libss

Used by debugfs
libuuid

Contains routines for generating unique identifiers for objects that may be accessible beyond the local system