CentOS mount New Hard Drive automatic mounting
Linux hard disk 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
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Fdisk-l
Appears:
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Disk/dev/sda: 146.1 GB, 146163105792 bytes
255 heads, 63 sectors/track, 17769 cylinders
Units = cylindersof16065 * 512 = 8225280 bytes
DeviceBootStartEndBlocksIdSystem
/Dev/sda1*11310439183 Linux
/Dev/sda214213240957717 + 83 Linux
/Dev/sda3511352431052257 + 82 Linuxswap/
Solaris
/Dev/sda45243167691006150955extended
/Dev/sda5524316769100615063 + 83 Linux
Disk/dev/sdb: 291.3 GB, 291331192320 bytes
255 heads, 63 sectors/track, 17769 cylinders
Units = cylindersof16065 * 512 = 8225280 bytes
Disk/dev/sdb1: 291.3 GB, 291331192320 bytes
4. Create a New Hard Disk Partition
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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.
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Fdisk/dev/sdb
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Command (mforhelp): n
Commandaction
Eextended // input e to create an extended partition
Pprimarypartition (1-4)
P
Partionnumber (1-4): 1
Command (mforhelp): 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:
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Mkfs. ext3/dev/sdb1
6. Create/data directory:
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Mkdir/data
7. Mount the partition:
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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:
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Vi/etc/fstab
Join:
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LABEL =/data/dataext3defaults12
View cat/etc/fstab
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LABEL = // ext3defaults11
LABEL =/data/dataext3defaults12
LABEL =/boot/bootext3defaults12
Tmpfs/dev/shmtmpfsdefaults00
Devpts/dev/ptsdevptsgid = 5, mode = 62000
Sysfs/syssysfsdefaults00
Proc/procprocdefaults00
LABEL = SWAP-hda3swapswapdefaults00
9. restart the system