25, mount the disk and unloading


Can be set to automatically mount at the command line and then mount, the mount can be achieved without shutdown, restart will automatically mount;

Loading drive (a drive device);

mount / dev / cdrom / mnt (temporary);

mount / dev / sdb1 / mnt # temporary mount

cat / etc / fstab; # View automatically mount the file;

Mount equipment; mount point; file system type; mount of parameter options (if you want to back up backup, backup is not 0); start checking whether to do (0 not checked, check 1,2)

mount -a: mount / all configurations in fstab

25.1 view the information mounted:

cat /proc/mounts

df -hT: View class has been mounted using the amount of disk partition, and file system

df -hi (see mount block and inode usage)

25.2, unloading mounted hard disk:

umount /dev/sdb1

Disk systems commonly used tools:

Modify the file system information: tune2fs

dumpe2fs: View ext file system information

megacli: View raid information

ipmitools: View hardware information tool

resize2fs: big adjustment file system

25.1, format the hard disk, create a file system:

25.1.1, formatting installation xfs:

yum install xfsprogs kmod-xfs xfsdump xfsprogs-devel: install xfs file system

modprobe xfs: load the kernel

lsmod | grep xfs: Viewing the kernel

xfs 1125237 0

exportfs 4236 1 xfs

mkfs.xfs / dev / sdb1: xfs file system creation

partprobe / dev / sdb: to tell the kernel partition is already in force

25.1.2, mkfs description:

Format the hard disk, create a file system, view system supported file system type;

mkfs -t (specified file format) ext4 -f (overwrites the previous file system) -b (specify the file block size) 4096 -i (inode specified size) 1024 / dev / sdb1 (typically using default block: 4k inode: 256byte)

mkfs.ext4 /dev/sdb1

partprobe / dev / sdb: to tell the kernel partition is already in force

25.1.3、fsck:

检查磁盘是否有坏道,用于磁盘无法使用时使用(挂载后的硬盘无法使用):

fsck -n /dev/sdb1

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Origin www.cnblogs.com/LiuChang-blog/p/12313542.html