|
Features
|
RHEL 7
|
RHEL 6
|
|
Default File System
|
XFS
|
EXT4
|
|
Kernel Version
|
3.10.x-x kernel
|
2.6.x-x Kernel
|
|
Kernel Code Name
|
Maipo
|
Santiago
|
|
General Availability Date of First Major Release
|
2014-06-09 (Kernel Version 3.10.0-123)
|
2010-11-09 (Kernel Version 2.6.32-71)
|
|
First Process
|
systemd (process ID 1)
|
init (process ID 1)
|
|
Host Name Change
|
In Red Hat Enterprise Linux 7, as part of the move to
the new init system (systemd), the hostname variable is defined in
/etc/hostname.
|
In Red Hat Enterprise Linux 6, the hostname variable
was defined in the /etc/sysconfig/network configuration file.
|
|
Change in UID Allocation
|
By default any new users created would get UIDs
assigned starting from 1000.
This could be changed in /etc/login.defs if required. |
Default UID assigned to users would start from 500.
This could be changed in /etc/login.defs if required. |
|
Max Supported File Size
|
Maximum (individual) file size = 500TB
Maximum filesystem size = 500TB (This maximum file size is only on 64-bit machines. Red Hat Enterprise Linux does not support XFS on 32-bit machines.) |
Maximum (individual) file size = 16TB
Maximum filesystem size = 16TB (This maximum file size is based on a 64-bit machine. On a 32-bit machine, the maximum files size is 8TB.) |
|
Desktop/GUI Interface
|
GNOME3 and KDE 4.10
|
GNOME2
|
|
Default Database
|
MariaDB is the default implementation of MySQL in Red
Hat Enterprise Linux 7
|
MySQL
|
|
Processor Architecture
|
Only Support 64 Bit
|
Support 32 or 64 Bit
|
|
Change in File System Structure
|
/bin, /sbin, /lib, and /lib64 are now nested under
/usr.
|
/bin, /sbin, /lib, and /lib64 are usually under /
|
|
Boot Loader
|
GRUB 2
Supports GPT, additional firmware types, including BIOS, EFI and OpenFirmwar. Ability to boot on various file systems (xfs, ext4, ntfs, hfs+, raid, etc) |
GRUB 0.97
|
|
KDUMP
|
RHEL7 supports kdump on large memory based systems up
to 3 TB
|
Kdump doesn’t work properly with large RAM based
systems.
|
|
Anaconda Version
|
Anaconda 19.31
|
Anaconda 13.21
|
|
Managing Temporary Files
|
RHEL 7 uses systemd-tmpfiles (more structured, and
configurable, method to manage tmp files and directories).
|
Using "tmpwatch"
|
|
Network Interface
|
By default, first network card starts enp0s3
|
By default, first network card starts eth0
|
Difference between RHEL 7 Vs RHEL 6
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