dection 5Storage Devices.docx

But because ive created logical partitions within the

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extended. But, because I've created logical partitions within the extended, I've created four partitionson a single hard disk drive. I can manage these logical partitions in the extended partition, just as if they were regular partitions. I can assign them drive letters, I can format each logical partition within a file system, and I can address the first one as the D drive, the second one as the E: drive, and the third one as an F: drive. Another option is to create three separate directories within my primary partition on my C drive. In this example, I create the XSPACE1, XSPACE2, and XSPACE3 directories. And I mount each of my logical partitions as directories, XSPACE1, XSPACE2, and XSPACE3. Then, when we access any of these directories, we're no longer accessing the storage space on the primary partition, but the storage space within each of these respective logical partitions. Active Partition 7:15-8:37 Another aspect of partitioning that you need to understand is active partitions. The hard drive on your system must have at least one active partition. An active partition is the partition that your bootloader uses to load the operating system files from. You can only boot an operating system from a partition that's set to active, so, if your operating system files are in a partition that's not set to active, you can't boot the system. You'll need to set one of your existing primary partitions to be the active partition, and then, put your operating system files on it. Let's take a look at how this boot up process works for an active partition. On startup, your BIOS or UEFI loads a bootstrap program that loads the master boot record into memory. The master boot record then reads the partition table to see which of the primary partitionshas been marked as the active partition. The master boot record then uses the partitioning information to find sector zero of the active primary partition. This is the boot sector for that primary partition. After that's done, the master boot record then loadsthe boot application operating system file located in the boot sector of the active primary partition.And at that point, the BIOS is done. The BIOS doesn't need to do any more, so it turns over control of the boot process to the operating system itself. As you can see, it's very important that you have the correct partition on the hard disk drive markedas the active partition. This same principle applies to Linux as well as Windows. Shrink a Partition 8:38-9:41
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Let's say that your system is not using all of its hard disk storage space, for example, suppose you have a 200 GB hard drive, and you're only using 50 GB of it. If so, you can shrink the 200 GB partition down to 100 GB and create a new volume using the remaining 100 GB of disk storage space as another volume.
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