Linux hard disk recognition: sda indicates 1st SCSI hard disks. hda indicates 1st IDE hard disks. content 0 indicates that 1st USB optical drives are generally used & ldquo; fdisk Linux hard disks. recognition:
Sda indicates 1st SCSI hard disks
Hda indicates 1st IDE hard disks
1st USB optical drives
You can use the "fdisk-l" command to list the hard disks currently connected to the system.
Steps:
1. disable the server and add a new hard disk.
2. start the server and log on as the root user.
3. View hard disk information
The following is a reference clip: Fdisk-l |
Appears:
The following is a reference clip: Disk/dev/sda: 146.1 GB, 146163105792 bytes 255 heads, 63 sectors/track, 17769 cylinders Units = cylinders of 16065*512 = 8225280 bytes
Device Boot Start End Blocks Id System /Dev/sda1*1 13 104391 83 Linux /Dev/sda2 14 5112 40957717 + 83 Linux /Dev/sda3 5113 5243 1052257 + 82 Linux swap/
Solaris /Dev/sda4 5244 17769 100615095 5 Extended /Dev/sda5 5244 17769 100615063 + 83 Linux
Disk/dev/sdb: 291.3 GB, 291331192320 bytes 255 heads, 63 sectors/track, 17769 cylinders Units = cylinders of 16065*512 = 8225280 bytes Disk/dev/sdb1: 291.3 GB, 291331192320 bytes |
4. create a new hard disk partition
The following is a reference clip: Fdisk can use the m command to view the internal command of the fdisk command; A: The command specifies the start partition; D: command to delete an existing partition; L: The Command displays the list of partition ID numbers; M: view the fdisk command help; N: create a new partition; P: command to display the partition list; T: command to modify the ID number of the partition type; W: The command is used to modify and save the partition table. |
The following is a reference clip: Fdisk/dev/sdb |
The following is a reference clip: Command (m for help): n Command action E extended // input e to create an extended partition P primary partition (1-4) P Partion number (1-4): 1
Command (m for help): w |
Enter n to press enter, then p to press enter, then 1 to press enter, all the way to press enter, and finally enter w to press enter to save.
View: fdisk-l
The/dev/sdb1 partition is displayed.
5. format the partition:
The following is a reference clip: Mkfs. ext3/dev/sdb1 |
6. create/data Directory:
The following is a reference clip: Mkdir/data |
7. mount the partition:
The following is a reference clip: Mount/dev/sdb1/data |
8. configure automatic mounting upon startup because mount fails after the server is restarted, you need to write the partition information to the/etc/fstab file for permanent mounting:
The following is a reference clip: Vi/etc/fstab |
Join:
The following is a reference clip: LABEL =/data ext3 defaults 1 2 |
View cat/etc/fstab
The following is a reference clip:
LABEL = // ext3 defaults 1 1 LABEL =/data ext3 defaults 1 2 LABEL =/boot ext3 defaults 1 2 Tmpfs/dev/shm tmpfs defaults 0 0 Devpts/dev/pts devpts gid = 5, mode = 620 0 0 Sysfs/sys sysfs defaults 0 0 Proc/proc defaults 0 0 LABEL = SWAP-hda3 swap defaults 0 0 |
9. restart the system