What is left to the root user when deleting a disk partition?
Source: Internet
Author: User
The section left to the root user when deleting a disk partition-general Linux technology-Linux technology and application information. The following is a detailed description. Original article http://yegle.net/2008/01/05/use-the-reserved-blocks/
Original: yige
When partitioning a disk, home is a separate partition and has no experience during the first installation. At that time, 5% of the space is reserved for the root user. But in fact, the root user's home directory is under/. Basically, it is not necessary to reserve a part of the space in home to root, so it is necessary to remove this 5%.
Google once found that it was using tune2fs to adjust the reserved-blocks.
Sudo tune2fs-m 0/dev/sda5
The m parameter specifies the percentage of reserved-blocks to the total size.
Man manual:
-M reserved-blocks-percentage
Set the percentage of the filesystem which may only be allocated by privi-
Leged processes. Reserving some number of filesystem blocks for use
Privileged processes is done to avoid filesystem fragmentation, and
Allow system daemons, such as syslogd (8), to continue to function cor-
Rectly after non-privileged processes are prevented from writing to
Filesystem. Normally, the default percentage of reserved blocks is 5%.
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