本 Wiki 开启了 HTTPS。但由于同 IP 的 Blog 也开启了 HTTPS,因此本站必须要支持 SNI 的浏览器才能浏览。为了兼容一部分浏览器,本站保留了 HTTP 作为兼容。如果您的浏览器支持 SNI,请尽量通过 HTTPS 访问本站,谢谢!
这里会显示出您选择的修订版和当前版本之间的差别。
两侧同时换到之前的修订记录前一修订版后一修订版 | 前一修订版 | ||
linux:liunxbasics:computerfundamentals:partition [2016/06/08 04:54] – haregy | linux:liunxbasics:computerfundamentals:partition [2023/03/30 02:30] (当前版本) – 移除 codinghare | ||
---|---|---|---|
行 1: | 行 1: | ||
- | ====Partition in Liunx==== | ||
- | ===== ===== | ||
- | ===Hardrive format in Linux=== | ||
- | For SATA, USB, SAS, these type of devices are showing in Linux like: | ||
- | < | ||
- | the //a// after// sd// indicates the currently number of harddisk. The order of these number is only associate with the computer checking sequence for harddrives. First is a , then b... | ||
- | For older IDE, the old version of Linux call them: | ||
- | < | ||
- | Since IDE harddrives is no longer used in new generation computers, some new version Linux just put them into **sd** aslo. | ||
- | ===Other devices format === | ||
- | ^ Devices | ||
- | |SCSI / SAS / USB / SATA | / | ||
- | |IDE| / | ||
- | |Virtual I/ | ||
- | |Floppy Disk | / | ||
- | |Printer | / | ||
- | |Mouse | / | ||
- | |CD/DVD ROM | / | ||
- | \\ | ||
- | For more devices name: [[https:// | ||
- | |||
- | |||
- | ===MBR=== | ||
- | MBR: Master boot record\\ | ||
- | A master boot record (MBR) is a special type of boot sector at the very beginning of partitioned computer mass storage devices like fixed disks or removable drives intended for use with IBM PC-compatible systems and beyond. The concept of MBRs was publicly introduced in 1983 with PC DOS 2.0.\\ | ||
- | MBR infos are usually stored at the first sector of hardrive. It take space of one sector(usually 512Bytes). In this space, there are two mainly data are stored in it: | ||
- | * MBR (446Bytes in classic MBR) | ||
- | * Partition Table(64 Bytes, Divided into 4 parts) | ||
- | So partition in Liunx usually is shown like:< | ||
- | ==Primary Partition== | ||
- | A primary partition contains one file system. In DOS and all early versions of Microsoft Windows systems, Microsoft required what it called the system partition to be the first partition. | ||
- | ==Extended Partition== | ||
- | Partition is used for keeping data safe by separating sectors into different range. Because Partition table only supports 4 partitions, for getting more partitions, people use a record called** extended boot record (EBR)** to create a new partition that we called Extended partition.In Extended Partition, the space could be divided into 4 or more pieces. Each pieces is called **Logical partition**. Extended partition response for recording partition table for each logical partition. | ||
- | ==Devices Numbers== | ||
- | In MBR, the frist 4 numbers are reserved by primary partition and extended partition. Thus, the devices for partition should be like this: | ||
- | < | ||
- | / | ||
- | <WRAP center round info 100%> | ||
- | sda[1-4] are fully reserved by primary partition and extended partition even they don't exist. Thus the number of logical partition has to start from number 5. Only **one** extended partition could exist at the same time. | ||
- | </ | ||
- | |||