RH133
Redhat Enterprise Linux System Administration Unit 1
Installation Hardware Overview
Kernel Support Core support: CPU, Memory, Process Management , Interrupt/Exception Handling etc. Dynamically Loadable Kernel Modules
Device Drivers
Additional Functionality User Mode Access to kernel facilities System Calls and Signals Filesystem Device Nodes Network Interfaces
Are not accessed through a device node but instead are accessed through a “network interface” abstraction. CPU and Memory
Seven Supported Architectures: x86, Itanium2, AMD64/EM64T, S/390, zSeries, iSeries, pSeries. CPU Support 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 16 GB 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 CD or at http://www.redhat.com Check Hardware Compatibility Redhat Supported Hardware List Hardware compatible with Redhat Linux http://hardware.redhat.com/hcl XFree86 supported video cards. http://xorg.freedesktop.org
http://www.x.org/wiki Multiboot systems
Redhat Enterprise Linux and the GRUB boot loader can co-exist with other operating systems, including the following: Windows NT/2000/XP/2003 DOS, Windows 3.x/9x/ME NetBSD, FreeBSD and other open systems. Two major issues arise when implementing multiboot systems: Partitioning and the boot process. A boot loader such as System Commander or NTLDR is already on the system and will launch GRUB as a secondary boot loader. Device Node Examples
Block devices: hd[a-t] IDE devices sd[a-z]+ SCSI devices fd[0-7] Standard floppy drives md[0-31] software RAID metadisks loop[0-15] loopback devices ram[0-9] ramdisks Character Devices: tty[0-31] virtual consoles ttyS[0-9]+ Serial ports lp[0-3] Parallel Ports null infinite sink ( the bit bucket) zero infinite source of zeros [u]random sources of random information fb[0-31] framebuffer devices Symbolic Links: /dev/cdrom - - > /dev/hd[a-t], /dev/sd[a-z]+ /dev/modem - - > /dev/ttyS[0-9]+ /dev/pilot - - > /dec/ttyS[0-9]+ The RHEL Installer
First Stage Installer Images diskboot.img – VFAT filesystem image for bootable media larger than a floppy You will need to use the dd command to move this image to you media. For instance: dd
noprobe and Kickstart modes available mediacheck tests media integrity Multiple Interfaces: Graphical Starts X server and a GUI installer Can be started in lowers mode. Works with hard drive, CDROM, NFS Installation Graphical is the default Text Menu-based terminal interface Works with all installation methods (ftp and http) 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