RHEL133 1.Installation

最新推荐文章于 2025-04-10 14:45:32 发布

最新推荐文章于 2025-04-10 14:45:32 发布 · 118 阅读

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本文档详细介绍了Red Hat Enterprise Linux的安装流程和技术要点，包括系统准备、硬件概述、多系统引导设置等内容。涵盖了从启动系统到完成安装的全过程，并提供了关于文件系统配置、网络设置、软件RAID及LVM等高级功能的说明。

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Initial Installation
        Preparing the Computer
            Boot your system with the Red Hat

    Hardware Overview
        Kernel Support
            Core Support:CPU,memory,Process Management,Interrupt/Exception Handling etc.
            Dynamically Loadable Kernel Modules
                Device Drivers
                Additional Functionality:kernel level packet filtering
        User Mode Access to kernel facilities
            System Calls and Signals Like API
            Filesystem Device Nodes
            Network Interfaces
    CPU and Memory
        Seven Supported Architectures:x86,Itanium2,AMD64/EM64T,S/390,zSeries,iSeries,pSeries
        CPU suport on x86
            Technical support for more than 2 physical CPUs only on AS variant(may use Hyper-Threading)
            Up to 32 physical CPUs with SMP or hugemem kernel
        Memory support on x86
            Technical support for more than 16GB on AS or WS
            Standard i686/athlon kernel:4GB
            SMP i686/athlon kernel:16GB
            Hugemem SMP kernel:64GB
    Preparing to Install
        Read the RELEASE-NOTES file on the first setup CD
        Check Hardware Compatibility
            Red Hat Supported Hardware List
                Hardware certified by Red Hat,Hardware Catalog on Red Het Web Site.
            XFree86 supported
    Multiboot system
        GRUB bootloader can coexist with other operating system.
        Two majorissues arise when implementing multiboot systems:
            Partitioning process
            Boot process
    Device Node Examples
        Block Devices
            /dev/hda    -IDE drives,when the system have second IDE drive /dev/hdb
            /dev/sda    -SCSI drives
            /dev/fd0    -standard floppy drives
        Character Devices
            /dev/tty[0-6]    -virtual consoles
            /dev/st0    -SCSI tape drives
        Symbolic links
    The RHEL Installer
    Installer Features
    RHEL Installation Overview
        Language,keyboard and mouse selection
        Media selection if applicable
        Disk partitioning
        Bootloader configuration
        Network and firewall configuration
        Authentication setup
        Package selection
        X server configuration
    Partitioning Hard Drives
        Hard drives are divided into partitions
        Partitions normally contain file systems
            primary,extended,and logical partitions
            The default filesystem type is ext3
        Filesystems are accessed via a mount point, which is a designated directory in the file system hierarchy
    Sample Partition Struture

    Configuring File Systems

    Software RAID
        Redundant Array of Inexpensive Disks
            Multiple Partitions on different disk combined into one RAID device
        Install-time RAID levels:
            RAID0
            RAID1
            RAID5
    LVM:Logical Volume Manager
        IBM system
    Network Configuration
    Firewall Setup
    SELinux:Security Enhanced Linux
        Access control determines what actions processes can perform on what objects
    SELinux Installation Options and Control
        Installation options:
            Disabled
            Warm(Permissive)
            Active(default)(Enforcing)
    Package Selection
    Validating the Installation
    noprobe Mode and Driver Disks
    Post_Install Configuration
        system-config-* example:system-confgi-date