Linux2.txt

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Anonymous
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133428
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Linux2.txt
Updated:
2012-02-07 01:41:44
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linux
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linux
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  1. Minimum Requirements 32 Bit.
    • 128mb Ram Text Mode
    • 192-256 GUI Mode
  2. Minimum Requirements 64 Bit
    • 256mb Ram Text Mode
    • 384-512 GUI Mode
  3. Minimum CPU Requirements
    • 200Mhz Text Mode
    • 400Mhz GUI Mode
  4. Textual Interface is also
    The CLI or Command Line Interface.
  5. Installer Interfaces
    2 PseudoGraphical and GUI.
  6. Preupgrade
    Allows you to update from a previous version to the latest.
  7. Clean install or Upgrade?
    Always perform a clean install it will almost almost always be more stable.
  8. Partition or Slice
    A logical section of a hard disk that has a device name such as /dev/sda1.
  9. Partition Table
    Hold Information about the partitions on a disk.
  10. File System is also called a
    Data Structure.
  11. Logical Volumes LV's
    LV's are similiar to partitions and when using the Logical Volume manager you can manage and change the volumes much easier then using a partition and partition tools.
  12. Maximum Partitions.
    4 Primary partitions and 15 total.
  13. Typical Disk Setup
    3 Primary Partitions and 1 extended that can hold many Logical Partitions
  14. LVM Solves the issue of Extended Partitions by
    Allowing you to create many file systems within a single partition in a more elegant way.
  15. Namespace
    a Unique set of names or Identifiers.
  16. Absolute Path name
    Traces a path from the root directory to the file in question.
  17. "/"
    Follows the name of a Directory
  18. Filesystems
    are independent, just because one is corrupt does not mean all are.
  19. /etc/fstab
    The file that holds the information relation partitions to mount points.
  20. Home directory =
    The home directory.
  21. Default Partition scheme
    • 3 Partitions
    • -/boot 200-500mb
    • Volume group consisting of 2 Logical Volumes
    • -Swap 512mb+
    • -/ or "Root" that contains the rest of the disk space.
  22. Swap Partition
    Linux temporarily stores programs and data on swap when it does not have enough ram. Also used when hibernating.
  23. Recommended Swap size
    One and two times the amount of ram in your system. Minimum size is 256mb.
  24. Worst case Hibernation swap size.
    One and Half times the size of ram.
  25. is Swap required?
    No but systems tend to perform better with one.
  26. Is a swap partition mounted?
    No and it not associated with a mount point.
  27. /Boot
    Hold the kernel and other data the system needs when it boots. Cannot be under a LVM.
  28. Size of /Boot
    Typically is 200mb and can be as small as 50mb.
  29. Reccomended /Boot size for Fedora.
    300mb
  30. Easy older system /boot compliance.
    Make /boot one of the first partitions on the disk.
  31. /var
    Data changes frequently. Holds system logs, package information and accounting data.
  32. /var size
    500mb and up! As much as needed. Good idea to make /var a separate partition.
  33. Recommended filesystem for /boot
    ext2 because the data does not change frequently.
  34. /home
    Ideally should be put into own partition to make reinstalls easier and less risky.
  35. size of /home
    As large as neccesary.
  36. /usr
    holds installed packages. Size can be from 2-16gb depending on how much you install.
  37. RAID stands for
    Redundant Array of Inexpensive/Independent Disks.
  38. Raid employs
    Two or more hard drives in combination to improve fault tolerance and OR performance.
  39. Raid is seen as
    a single logical device.
  40. T or F Raid is a good backup plan?
    False
  41. Raid 0
    Striping, No redundancy.
  42. Raid 1
    Mirroring
  43. Raid 5
    Striping with Parity
  44. Raid 6
    Striping with Double Parity. Inefficient with a small number of drives.
  45. Raid 10
    Raid 1 + 0 = Raid 10. Requires 4 Disks.
  46. MBR=
    Master Boot Record.

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