Beyond Linux® From Scratch (systemd Edition) - Version 10.0

Chapter 5. File Systems and Disk Management

jfsutils-1.1.15

Introduction to jfsutils

The jfsutils package contains administration and debugging tools for the jfs file system.

This package is known to build and work properly using an LFS-10.0 platform.

Package Information

Additional Downloads

User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/jfs

Kernel Configuration

Enable the following option in the kernel configuration and recompile the kernel: 

File systems  --->
  <*/M> JFS filesystem support [CONFIG_JFS_FS]

Installation of jfsutils

First, fix some issues exposed by GCC 10 and later: 

patch -Np1 -i ../jfsutils-1.1.15-gcc10_fix-1.patch

Install jfsutils by running the following commands: 

sed -i "/unistd.h/a#include <sys/types.h>"    fscklog/extract.c &&
sed -i "/ioctl.h/a#include <sys/sysmacros.h>" libfs/devices.c   &&

./configure &&
make

This package does not come with a test suite.

Now, as the root user: 

make install

Command Explanations

sed ...: Fixes building with glibc 2.28.

Contents

Installed Programs: fsck.jfs, jfs_debugfs, jfs_fsck, jfs_fscklog, jfs_logdump, jfs_mkfs, jfs_tune, mkfs.jfs
Installed Libraries: None
Installed Directories: None

Short Descriptions

fsck.jfs

is used to replay the JFS transaction log, check a JFS formatted device for errors, and fix any errors found.

jfs_fsck

is a hard link to fsck.jfs.

mkfs.jfs

constructs an JFS file system.

jfs_mkfs

is a hard link to mkfs.jfs.

jfs_debugfs

is a program which can be used to perform various low-level actions on a JFS formatted device.

jfs_fscklog

extracts a JFS fsck service log into a file and/or formats and displays the extracted file.

jfs_logdump

dumps the contents of the journal log from the specified JFS formatted device into output file ./jfslog.dmp.

jfs_tune

adjusts tunable file system parameters on JFS file systems.

Last updated on 2020-08-23 15:03:29 -0700