L6 Advanced Installation

T/F. A DVD is the most common and easiest method for installing Linux.

True

T/F. Each device is assigned a SCSI ID or target ID. The SCSI ID also gives priority to each device.

True

T/F. If you want to use a Windows computer to write the ISO image to the USB flash memory drive, you can use free utilities e.g., LiveUSB Creator.

True

T/F. Most modern computers have a BIOS that can boot the computer from a flash memory drive that is inserted into a USB slot. You will need to write the ISO image to the USB flash memory drive. It overwrites the existing filesystem on the drive.

True

T/F. Overclocking may lead to increased performance. However, it produces more heat on the processor which may result in computer crashes.

True

T/F. RAID can be hardware-based, software-based or firmware-based.

True

T/F. RAID level 0 configurations are not fault-tolerant.

True

T/F. The iSCSI initiator may can be either software component that is part of the Linux OS or a hardware component that is part of the iSCSI-compliant network card.

True

T/F. iSCSI is often referred to a Storage Area Network (SAN) technology.

True

State the configuration steps for connecting parallel SCSI devices.

Verify that all of the SCSI components support the same technology Ensure that your SCSI components are connected properly Make sure the system BIOS recognizes the hard drives at system startup

20.Immediately after installation, you want to view the installation log files. Which files should you view? (Choose two answers.) a. /root/install.log b. /proc/install.log c. /root/install.log.syslog d. /proc/install.log.syslog

a. /root/install.log c. /root/install.log.syslog

4. Which of the following RAID levels is not fault tolerant? a. RAID 0 b. RAID 1 c. RAID 4 d. RAID 5

a. RAID 0

17. Which of the following could result in a segmentation fault (fatal signal 11) during a Fedora installation? (Choose all that apply.) a. RAM problems b. overclocked CPU c. damaged installation media d. Plug and Play support

a. RAM problems b. overclocked CPU

11. Which type of RAID requires that you choose Specialized Storage Devices during the Fedora installation? a. hardware RAID b. software RAID c. firmware RAID d. serial RAID

a. hardware RAID

12. What stores the default boot order for a PC? a. system BIOS b. boot loader c. the /proc/loader file d. the MBR of the first hard disk

a. system BIOS

15. Which RAID level is also referred to as mirroring? a. 0 b. 1 c. 4 d. 5

b. 1

8. Which RAID level uses striping with parity? a. 2 b. 4 c. 1 d. 5

b. 4

3. You want to view log files to get information about a problem you are having. In which directory will you likely find the log files? a. /root/log b. /sys/log c. /var/log d. /etc/log

c. /var/log

18. SCSI-1 is also referred to as _____. a. fast and wide b. slow and wide c. slow and narrow d. fast and narrow

c. slow and narrow

2. Which of the following is used to describe a computer that is used to access an iSCSI hard disk across the network? a. iSCSI target b.iSCSI requestor c.iSCSI initiator d.iSCSI terminator

c.iSCSI initiator

To verify that Linux has detected the correct amount of RAM in the system after installation, simply view the contents of the meminfo file in the /proc directory.

cat /proc/meminfo

To see a list of modules currently inserted in the Linux kernel, simply view the contents of the modules file in the /proc directory.

cat /proc/modules

From another Linux computer, use dd command

dd if=/root/Fedora13.iso of=dev/sdb1 if (input file) = /root/Fedora13.iso of (output file) = dev/sdb1

To view the hardware detected during boot time, use the dmesg command.

dmesg | tail

An_____ records actions that occur or fail during installation.

installation log file

Running a processor at a higher speed than it is rated for is called _____.

overclocking

Fault-tolerant configurations are typically implemented by a _____. They can be used to speed up access to hard disks. It combines several hard disks' storage space. There are seven configurations.

redundant array of inexpensive disks (RAID)

The _____prevents signals from bouncing back and forth on a connection cable.

terminator

The ______ is an installation log file that lists all of the system events that occurred during the installation, such as the creation of user and group accounts.

/root/install.log.syslog

State other problems during an installation and their possible fixes.

1) If the installation freezes, disable the PnP support in the BIOS prior to installation. 2) If installation ends abnormally and the "fatal signal 11" error displayed, there could be a problem with RAM and is often fixed by checking the memory for errors. It could also be a CPU voltage issue. 3) Other failure causes include bad memory chips, an AMD K6 processor, laptop power management conflicts or overclocked CPUs.

The computer connected to a remote hard disk via iSCSI is referred to as an iSCSI __________________________ and the remote hard disk is called the iSCSI __________________________.

...

The_____ is an installation log file that lists the packages installed as well as a list of packages that were not installed.

/root/install.log

1. SAS transfers data to SCSI disks via parallel cables. True or False?

False

A _____ is an automated installation script that specifies the normal OS installation choices. It contains sections on system configuration, disk partitioning and package selection.

Kickstart

The _____ can be installed to configure a new kickstart file if you need to make major changes to the sample file.

Kickstart Configurator

State four other methods for installing Linux.

Multiple CDs (actually 6) A USB flash memory drive An ISO image on a local hard disk or An ISO image through a network server

Troubleshooting installation problems can be divided into three categories based on when they occur. State them.

Problems starting the installation Problems during installation Problems after installation

_____ requires two identical hard disks. In this RAID configuration, the same data is written to two separate hard disks at the same time. This results in two hard drives with identical information. It is fault tolerant.

RAID 1 (also called disk mirroring)

_____ is a recent SCSI technology that can transfer data up to 786 MB/s.

Serial Attached SCSI

7. Where is the /proc filesystem stored? a. in RAM b. on the hard disk drive in the / directory c. on the hard disk drive in the /var directory d. Which RAID level uses striping with parity?

a. in RAM

5.Which directory does System Rescue use to mount the / (root) filesystem that is located on your hard disk? a. /media b. /mnt/sysimage c. /chroot d. /

b. /mnt/sysimage

6. Which of the following is not a type of RAID? a. hardware RAID b. software RAID c. firmware RAID d. serial RAID

c. firmware RAID

To view the information that Linux has detected regarding the CPU in the computer, simply view the contents of the cpuinfo file in the /proc directory.

cat /proc/cpuinfo

19. You need to perform a Fedora installation from source files hosted on an FTP server across the network. What is the first step that you should perform? a. Boot from local Fedora installation media and select the FTP server option from the welcome screen b. Obtain a network boot floppy disk from http://fedoraproject.org c. Download a network installation CD from http://fedoraproject.com d. Boot from local Fedora installation media and modify the boot options to include the word askmethod

d. Boot from local Fedora installation media and modify the boot options to include the word askmethod

To view system processes that started successfully and unsuccessfully during boot time, view the contents of the /var/log/messages log file.

/var/log/messages

State what you need to do to use the ks.cfg file.

Place ks.cfg on CD, DVD, floppy disk or hard disk partition Boot from installation startup DVD At welcome screen, modify the boot option, and specify ks.cfg file and its location This installation will run without prompting the user.

_____ is the most common RAID configuration. It requires a minimum of three hard disks for implementation. The parity information is not written to one drive as in other RAID levels. It writes portions of the information to different hard drives and maintains the parity information. It is fault tolerant.

RAID 5 (also called disk striping with parity)

_____ is one type of RAID level 0 in which two hard drives are seen as one single volume by the system. It is useful when a large amount of space is needed in a single volume without fault-tolerance.

Spanning

_____ is a small bootable Linux kernel and virtual filesystem used to fix problems. It can be used to fix the boot loader, filesystems and partitions, the configuration file and drivers.

System Rescue

T/F. For the graphical installation of Linux, the video card and mouse must be detected. The appropriate drivers must be loaded. The video card may not be supported by mode and the resolution of the graphical installation.

True

T/F. If the mouse does not work, use the text-based installation. To begin a text based installation, type linux text at the welcome screen at the beginning of the installation.

True

T/F. In most systems, a SCSI device is connected to a controller card, which, in turn, connects all devices attached to it to the system.

True

T/F. Many times deploying several Linux servers and workstations requires the same configuration.

True

T/F. Several devices require that their driver be inserted into the Linux kernel as a module. Sound cards, network interface cards and USB devices typically have modules inserted into the kernel.

True

T/F. The CD installation requires six CDs and the first CD contains the installation program. Boot the computer using the first CD, then make appropriate choices within the installation program. You will be prompted to insert the remaining CDs when necessary.

True

T/F. The network-based installation will ask the user to select language, keyboard setting and the protocol. The user must configure the network settings.

True

T/F. The parity bits in a RAID level 5 are intermixed on the hard drives that contain the data and can be used to re-generate data when a hard drive fails.

True

T/F. The user may install Linux directly from the downloaded ISO image on the hard disk. There must have sufficient free space outside the partition containing the ISO images for the Linux operating system.

True

T/F. The user may still have problems if the installation program did not detect computer hardware properly or certain programs were not installed.

True

T/F. To start the hard drive installation, use the DVD, the first installation CD or the bootable USB flash memory drive to start the installation. Press Tab on your keyboard and add ask-method to the boot options line. This will prompt the user to perform a non standard installation.

True

T/F. To start the network-based installation, use the DVD, the first installation CD or the bootable USB flash memory drive to start the installation. The ISO image is stored on a network computer. Press Tab on your keyboard and add ask-method to the boot options line. This will prompt the user to perform a non standard installation.

True

T/F. To verify hardware settings, examine the contents of the /proc directory.

True

T/F. Up to 65,535 Serial Attached SCSI hard disks can be connected to a single SCSI controller via serial cables with small serial connectors.

True

T/F. You can select Rescue on the Fedora installation welcome screen. There are many options regarding how to rescue.

True

T/F. The messages file contains boot information as well as other messages from the screen after boot time.

True tail /var/log/messages

10. SCSI devices that use an 8-bit-wide data path use _____. a. an 8-pin connector b. a 15-pin connector c. a 50-pin connector d. a 68-pin connector

c. a 50-pin connector

14.Which of the following can be used to simplify the deployment of several Linux servers in your organization? a. disk burning software b. an automatic software installation server c. a kickstart file d. an automated boot disk

c. a kickstart file

ls -F /proc

This command lists the files classified by file type in the /proc directory. The subdirectories that start with a number are used to display process information. Other directories can contain kernel parameters.

9. The Fedora installation process automatically generates a sample kickstart configuration file called /root/anaconda-ks.cfg. True or False?

True

T/F. After a normal Fedora Linux installation, the installation program creates a sample kickstart file called /root/anaconda-ks.cfg that contains the choices you made during the installation program. Make a copy of this file and call it ks.cfg.

True

T/F. Computers typically have different hardware BIOS configurations, thus installing Linux on different computers is rarely the same. These problems are usually related to hardware support or configuration and are typically fixed by making changes to the hardware configuration of the system.

True

T/F. Fault-tolerant configurations minimize the time required to recover from a hard disk failure.

True

T/F. Fedora Core 14 is available as an ISO image on the Internet. This ISO image should be burned to a DVD and boot your computer from this DVD.

True

T/F. Kickstart files are text files and can be edited with a text editor.

True

The ____ uniquely identifies devices attached to a SCSI controller.

SCSI ID

The Small Computer System Interface (SCSI) was designed as a way to connect multiple peripherals to the system in a scalable, high-speed manner.

Small Computer System Interface (SCSI)

State three ways to fix some problems starting an installation.

Check the BIOS boot order Check that the battery supporting the BIOS is providing power Choose device to boot from at system startup by pressing a special key

State the configuration steps for connecting iSCSI devices.

Configuration settings will vary by manufacturer. The administrator must specify configuration settings during the Linux installation. Select Specialized Storage Devices (instead of Basic Storage Devices) Select Add Advanced Target and supply the appropriate TCP/IP configuration information

State the configuration steps for connecting Serial Attached SCSI devices.

Connect the hard disks to the SCSI controller via the correct serial cable. Ensure that the hard disks are detected properly by the system or SCSI BIOS. The rest of the configuration is performed automatically by the SCSI controller.

_____ is another type of RAID level 0 that is used to write a portion of an individual file to each of multiple hard drives. Each hard disk stores a section of the file. While it is not fault-tolerant, it decreases the read/write time of the data written to the hard drives.

Disk Striping

An_____ is a large file that contains an exact copy of contents of a CD-ROM or DVD.

International Standards Organization (ISO)

_____ is a recent SCSI technology that uses network cables to transfer data to and from remote hard disks that reside on the intranet or the Internet.

Internet SCSI (iSCSI)

State the protocols that may be in use for a network-based installations.

Network File System (NFS) File Transfer Protocol (FTP) Hypertext Transfer Protocol (HTTP)

_____, which is the traditional SCSI technology, relies on ribbon cables to transmit information between the hard disk and SCSI controller.

Parallel SCSI

There are three types of SCSI disk configurations. State them.

Parallel SCSI Serial Attached SCSI and iSCSI