Linux engineers to learn the practice of three notes: File system maintenance

ext2/ext3 through the data blocks stored documents

Formatted file system:

mkfs.ext3-b 4096-i 8192-m 5 / dev/sdb4

-b data block size

said node-i inode number of bytes (or data block size)

-m 5 for the administrator to retain management of the disk space of 5%

ls-lh / mnt / u

du-sh / mnt / u

df-lh

# tune2fs-l / dev/sdb1 print file system attributes

# df

tune2fs to adjust characteristics of the file system ext2/ext3 tools

-l view the file system information

-m to retain pieces of the percentage of

mandatory set-c the mounting number of self -

-i compulsory self-set time intervals

-j ext2 into ext3



tune2fs-c -1 / dev/sdb1 mount no matter how small times are not self -

tune2fs-c -1-i 0 / dev/sdb1 partition will never allow self -

# mkfs.ext2 / dev/sdb4 formatted as ext2

# tune2fs-j / dev/sdb4 converted to ext3

# df-T to view partition information

Inter-judge ext2 or ext3:

tune2fs-l / dev/sdb1 | grep features

See Filesystem features: has_journal

Are there has_journal, there is a ext3 file system



grep-i "name" is not case-sensitive

df-T partition type

fsck checks the file system data integrity tools

Use one, fsck-t ext2 / dev/sdb1

Second, fsck.ext3 / dev/sdb1

# more / etc / fstab

If mount options are 1 or 2, it should be a self-test

# fsck.ext3-y / dev/sdb1 automatically repair errors