Chapter 5 Study Guide - Revision history

JBackley: /* Floppies */

2012-03-29T23:10:41Z

Floppies

← Older revision		Revision as of 23:10, 29 March 2012
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	For example:		For example:
	~~fuser~~ -u /media/floppy		mount -u /media/floppy

	To unmount use the following command: unmount /media/floppy		To unmount use the following command: unmount /media/floppy

JBackley: /* Filesystems */

2012-02-17T21:11:52Z

Filesystems

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 Reiser Filesystem - reiserfs (Linux, journalling)
 IS0 9660 Filesystem - iso9660 (CD-ROM)
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 Network Filesystem - NFS
 Uniform Filesystem - ufs ( BSD, Solarius, NeXTStep)
 UMSDOS Filesystem - umsdos (Unix filesystem on DOS)
 jfs (Linux, journalling)
-ntfs
+ntfs - Used by Windows
 ==Mounting==

JBackley: /* Monitoring Filesystems */

2012-02-17T21:10:35Z

Monitoring Filesystems

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	'''The filesystem must be UNmounted before you can check it'''		'''The filesystem must be UNmounted before you can check it'''


	~~'''The filesystem must be UNmounted before you can check it'''~~


	~~'''The filesystem must be UNmounted before you can check it'''~~


	~~'''The filesystem must be UNmounted before you can check it'''~~


	~~'''The filesystem must be UNmounted before you can check it'''~~

JBackley: /* Floppies */

2012-02-17T21:10:14Z

Floppies

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	If you don’t specify the filesystem then the default assumed is the ext2 file system: mkfs /dev/fd0		If you don’t specify the filesystem then the default assumed is the ext2 file system: mkfs /dev/fd0

	To mount a device on the directory tree use the mount command with options to specify the filesystem type to mount, the directory~~, and whether the /media/floppy directory is being used by any users use the fuser command with the –u option~~		To mount a device on the directory tree use the mount command with options to specify the filesystem type to mount the directory.

	For example:		For example:

JBackley: /* fdisk Options */

2012-02-15T02:03:58Z

fdisk Options

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	displays the program’s version.		displays the program’s version.

	-L, --linux-fdisk		-L, --linux-fdisk
	turns on Linux fdisk compatibility mode. This is the same as running lfdisk.		turns on Linux fdisk compatibility mode. This is the same as running lfdisk.

	-G, --gnu-fdisk		-G, --gnu-fdisk
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	You then work with these files you created as you would any other partition device file.		You then work with these files you created as you would any other partition device file.


	==USB and Fireware based storage==		==USB and Fireware based storage==

JBackley at 02:03, 15 February 2012

2012-02-15T02:03:31Z

← Older revision		Revision as of 02:03, 15 February 2012
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	Hard Disks can only contain up to four primary partitions but you can created extended partitions to overcome this.Extended partitions can then contain many more subpartitions called logical drives.Partitions can be created specific to a certain file system. You can create partitions at installation using the graphical installation program or you can create partitions after the install using the fdisk command.		Hard Disks can only contain up to four primary partitions but you can created extended partitions to overcome this.Extended partitions can then contain many more subpartitions called logical drives.Partitions can be created specific to a certain file system. You can create partitions at installation using the graphical installation program or you can create partitions after the install using the fdisk command.

	fdisk options:		==fdisk Options==
			Some of the more common options for fdisk.

	-h, --help		-h, --help

JBackley at 02:02, 15 February 2012

2012-02-15T02:02:07Z

← Older revision		Revision as of 02:02, 15 February 2012
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	==CDs and DVDs==		==CDs and DVDs==

	Can be mounted with mount and unmounted with umount		Can be mounted with mount and unmounted with umount commands.
	Device files used by these drives are different than Floppies		Device files used by these drives are different than Floppies

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	==Hard Disks==		==Hard Disks==
	3 Flavors of Hard Disks:		3 Flavors of Hard Disks: PATA, SATA, SCSI
	-PATA, SATA, SCSI

	'''PATA'''		'''PATA'''
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	Linux always requires two partitions		Linux always requires two partitions

	One for the root		One for the root and One for the swap (virtual memory)

	One for the swap (virtual memory)

	Partitions decrease the likely hood of corruption in the file system		Partitions decrease the likely hood of corruption in the file system
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	Hard Disks can only contain up to four primary partitions		Hard Disks can only contain up to four primary partitions but you can created extended partitions to overcome this.Extended partitions can then contain many more subpartitions called logical drives.Partitions can be created specific to a certain file system. You can create partitions at installation using the graphical installation program or you can create partitions after the install using the fdisk command.

			fdisk options:

			-h, --help
			displays a help message.

			-v, --version
			displays the program’s version.

			-L, --linux-fdisk
			turns on Linux fdisk compatibility mode. This is the same as running lfdisk.

			-G, --gnu-fdisk
			turns off Linux fdisk compatibility mode.

			-i, --interactive
			where necessary, prompts for user intervention.

	~~You can created extended partitions to overcome this~~		-p, --script
			never prompts for user intervention.

	~~Extended partitions can then contain many more subpartitions called logical drives~~.		-l, --list
			lists the partition table on the specified device and exits. If there is no device specified, lists the partition tables on all detected devices.

			-r, --raw-list
			displays a hex dump of the partition table of the disk, similar to the way Linux fdisk displays the raw data in the partition table.

			-u, --sector-units
			use sectors, instead of cylinders for a default unit.

			-s, --size=DEVICE
			prints the size of the partition on DEVICE is printed on the standard output.

			-t, --list-partition-types
			displays a list of supported partition types and features.

	~~Partitions can be created specific to a certain file system~~

	~~You can create partitions at installation using the graphical installation program or you can create partitions after the install using the fdisk command.~~

	'''cfdisk''' will give you the GUI based fdisk program.		'''cfdisk''' will give you the GUI based fdisk program.

	Reboot to save changes to the MBR or GPT		Reboot to save changes to the MBR or GPT.

	After reboot, you can use the mkfs, mount, and unmount commands specifying the partition device file as an argument		After reboot, you can use the mkfs, mount, and unmount commands specifying the partition device file as an argument

	~~Swap partitions must be prepared to swap partitions and activate them for use on Linux~~

	~~Use the mkswap command~~ to ~~prepare the~~ swap ~~partition~~		Swap partitions must be prepared to swap partitions and activate them for use on Linux.

	Use the swapon command to activate it		Use the mkswap command to prepare the swap partition.

			Use the swapon command to activate it.


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	repquota		repquota
	displays quota report		displays quota report



	Sources:		Sources:
	[http://www.linux-tutorial.info/modules.php?name=MContent&pageid=243 Supported File Systems]		[http://www.linux-tutorial.info/modules.php?name=MContent&pageid=243 Supported File Systems]

			[http://manpages.ubuntu.com/manpages/hardy/man8/fdisk.8.html fdisk options]

JBackley at 01:50, 15 February 2012

2012-02-15T01:50:03Z

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 To view the type of the file use the following command
-  “ls -l/dev/dsk”
+  ls -l/dev/dsk
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 '''Filesystem:'''
 The organization imposed on a physical storage medium that is used to manage the storage, store, retrieve, and update data on device. All filesystems have three common components: the superblock, the inode table, and the data blocks. Together they organize files and allow rapid access to and retrieval of data.
 ==Mounting==
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   repquota
 displays quota report

JBackley at 01:38, 15 February 2012

2012-02-15T01:38:29Z

← Older revision		Revision as of 01:38, 15 February 2012
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	~~This is where I am going to put the chapter 5 study guide. Don't read this until it is done and this sentance is not here! ~JB~~

	~~==Main Point==~~

	~~'''Bolded word to define'''~~

	~~Blah blah~~

	==/Dev directoy==		==/Dev directoy==
	The /dev directory contains the special device files that control access all the devices. Two main types of devices under all systems:		The /dev directory contains the special device files that control access all the devices. Two main types of devices under all systems:

JBackley at 01:38, 15 February 2012

2012-02-15T01:38:11Z

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 '''The filesystem must be UNmounted before you can check it'''
 '''The filesystem must be UNmounted before you can check it'''
 '''The filesystem must be UNmounted before you can check it'''
 '''The filesystem must be UNmounted before you can check it'''
 '''The filesystem must be UNmounted before you can check it'''
   fsck –a or –y
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 ==Hard Disk Quotas==