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When an ext2 partition is formatted, a fixed percentage of the blocks on the disk are reserved for use by the root user. After the filesystem has been created this percentage can be modified using which utility?
A. tune2fs
B. mke2fs
C. e2fsck
D. mount
E. hdparm
Correct Answer: A
Explanation/Reference:
Explanation: The tune2fs utility can be used to modify the reserved blocks. For example, the tune2fs – u <username> command can be used to allow a user to use the reserved blocks.
Reference: http://www.oreillynet.com/linux/cmd/t/tune2fs.html
Incorrect Answers:
B:You need the tune2fs utility, not mke2fs.
C:E2fsck is used to check a disk for bad blocks. It is not used for reserved blocks.
D:The mount command is used to mount a filesystem. It is not used for reserved blocks.
E:Hdparm is used for tuning a hard disk for performance. It is not used for reserved blocks.
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