SIMULATION
With which command can the reserved blocks on /dev/hda1 be displayed? (Enter the command with all parameters and or options)
Correct Answer: tune2fs -l /dev/hda1
Explanation/Reference:
Explanation: using tune2fs -l device can list the contents of the filesystem superblock.
[root@localhost ~]#
tune2fs -l /dev/hda1
See the sample out put tune2fs 1.35 (28-Feb-2004)
Filesystem volume name: /boot
Last mounted on: <not available>
Filesystem UUID: c03a3e0f-b3f9-4b9b-8f2f-798b3399cdb1
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 26104
Block count: 104388
Reserved block count: 5219
Free blocks: 92231
Free inodes: 26069
First block: 1
Block size: 1024
Fragment size: 1024
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2008
Inode blocks per group: 251
Filesystem created: Thu Mar 23 15:16:22 2006
Last mount time: Mon Mar 27 10:26:45 2006
Last write time: Mon Mar 27 10:26:45 2006
Mount count: 24
Maximum mount count: -1
Last checked: Thu Mar 23 15:16:22 2006
Check interval: 0 (<none>)
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 5725b537-2bb5-434a-a243-d6448a3631dc
Journal backup: inode blocks
Explanation/Reference:
Explanation: using tune2fs -l device can list the contents of the filesystem superblock.
[root@localhost ~]#
tune2fs -l /dev/hda1
See the sample out put tune2fs 1.35 (28-Feb-2004)
Filesystem volume name: /boot
Last mounted on: <not available>
Filesystem UUID: c03a3e0f-b3f9-4b9b-8f2f-798b3399cdb1
Filesystem magic number: 0xEF53
Filesystem revision #: 1 (dynamic)
Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super
Default mount options: (none)
Filesystem state: clean
Errors behavior: Continue
Filesystem OS type: Linux
Inode count: 26104
Block count: 104388
Reserved block count: 5219
Free blocks: 92231
Free inodes: 26069
First block: 1
Block size: 1024
Fragment size: 1024
Blocks per group: 8192
Fragments per group: 8192
Inodes per group: 2008
Inode blocks per group: 251
Filesystem created: Thu Mar 23 15:16:22 2006
Last mount time: Mon Mar 27 10:26:45 2006
Last write time: Mon Mar 27 10:26:45 2006
Mount count: 24
Maximum mount count: -1
Last checked: Thu Mar 23 15:16:22 2006
Check interval: 0 (<none>)
Reserved blocks uid: 0 (user root)
Reserved blocks gid: 0 (group root)
First inode: 11
Inode size: 128
Journal inode: 8
Default directory hash: tea
Directory Hash Seed: 5725b537-2bb5-434a-a243-d6448a3631dc
Journal backup: inode blocks
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