Migration Planning Guide
1. Introduction
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1. 1.1. Red Hat Enterprise Linux 6
2. 1.2. Application Compatibility
2. Installation
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1. 2.1. Kernel and Boot Options
2. 2.2. Graphical Installer
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  1. 2.2.1. Devices and Disks
  2. 2.2.2. Kickstart
    
    Expand section "2.2.2. Kickstart" Collapse section "2.2.2. Kickstart"
    
    2.2.2.1. Behavioral Changes
    
    2.2.2.2. Command Changes
    
    2.2.2.3. Packages Changes
    
    2.2.2.4. Script Changes
    
    2.2.2.5. Syntax Changes
    
    2.2.2.6. Summary of Differences
    
    2.2.2.7. pykickstart
  3. 2.2.3. Networking
  4. 2.2.4. Product Subscriptions and Content Updates
3. 2.3. Text-Based Installer
3. Storage and File Systems
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1. 3.1. kdump
2. 3.2. RAID
  Expand section "3.2. RAID" Collapse section "3.2. RAID"
  1. 3.2.1. Upgrades
3. 3.3. ext4
  Expand section "3.3. ext4" Collapse section "3.3. ext4"
  1. 3.3.1. Migration from ext3
  2. 3.3.2. Behavioral changes
4. 3.4. blockdev
5. 3.5. Tape devices
4. Networking and Services
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1. 4.1. Interfaces and Configuration
2. 4.2. Service Initialization
  Expand section "4.2. Service Initialization" Collapse section "4.2. Service Initialization"
3. 4.3. IPTables/Firewalls
4. 4.4. Apache HTTP Server
5. 4.5. Samba
6. 4.6. PHP
7. 4.7. BIND
8. 4.8. SNMP
9. 4.9. NTP
10. 4.10. PTP
11. 4.11. Kerberos
12. 4.12. Mail
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  1. 4.12.1. Sendmail
  2. 4.12.2. Exim
  3. 4.12.3. Dovecot
    
    Expand section "4.12.3. Dovecot" Collapse section "4.12.3. Dovecot"
    
    4.12.3.1. Dovecot configuration
13. 4.13. MySQL®
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  1. 4.13.1. DBD Driver
14. 4.14. PostgreSQL
  Expand section "4.14. PostgreSQL" Collapse section "4.14. PostgreSQL"
  1. 4.14.1. Upgrading Databases
  2. 4.14.2. Other Changes
15. 4.15. Squid
16. 4.16. Bluetooth
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  1. 4.16.1. Bluetooth Service On Demand
17. 4.17. Cron
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  1. 4.17.1. Vixie cron and Cronie
18. 4.18. Logging
5. Command Line Tools
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6. System Configuration
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1. 6.1. ACPI
  Expand section "6.1. ACPI" Collapse section "6.1. ACPI"
  1. 6.1.1. CPU hotplug
2. 6.2. Logging
7. Desktop
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1. 7.1. GDM Configuration
8. Security and Authentication
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1. 8.1. SELinux
2. 8.2. openCryptoki
3. 8.3. SSSD
4. 8.4. LDAP
  Expand section "8.4. LDAP" Collapse section "8.4. LDAP"
  1. 8.4.1. OpenLDAP
  2. 8.4.2. Converting slapd configuration
5. 8.5. Checksums
6. 8.6. Pluggable Authentication Modules (PAM)
7. 8.7. System Users
8. 8.8. NIST SCAP 1.2 Certification
9. 8.9. Changes to RSA and DSA Key Generation
9. System Monitoring and Kernel
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1. 9.1. dracut
2. 9.2. IP Virtual Server (IPVS)
3. 9.3. Joystick support
4. 9.4. Automatic Bug Reporting Tool (ABRT)
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  1. 9.4.1. ABRT Events
10. Package and Driver Changes
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1. 10.1. System Configuration Tools Changes
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2. 10.2. Bash (Bourne-Again Shell)
  Expand section "10.2. Bash (Bourne-Again Shell)" Collapse section "10.2. Bash (Bourne-Again Shell)"
  1. 10.2.1. Regular Expressions
3. 10.3. Other Package Changes
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4. 10.4. Driver Changes
  Expand section "10.4. Driver Changes" Collapse section "10.4. Driver Changes"
5. 10.5. Library Changes
A. Revision History
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2.2.2.5. Syntax Changes

Changes to the core Kickstart syntax are quite rare. However, there are two important syntax changes to be aware of:

The %include option can now accept a URL as an argument, in addition to a file name.
The %packages, %post, %pre and %traceback sections do not require an %end section. A deprecation warning will appear if %end sections are not included, but the script will continue to run.