[iyunv@Oracle ~]# debugfs /dev/sda1 debugfs 1.41.12 (17-May-2010) debugfs: show_super_stats Filesystem volume name: <none> Last mounted on: <not available> Filesystem UUID: 26f717ca-7d24-4577-9687-c588b8992e70 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery sparse_super large_f ile Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 32768 Block count: 131072 Reserved block count: 6553 Free blocks: 119489 Free inodes: 32730 First block: 0 Block size: 4096 Fragment size: 4096 Reserved GDT blocks: 31 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 8192 Inode blocks per group: 512 Filesystem created: Fri Nov 28 23:19:46 2014 Last mount time: Mon Jan 12 10:33:06 2015 Last write time: Mon Jan 12 10:33:06 2015 Mount count: 8 Maximum mount count: -1 Last checked: Fri Nov 28 23:19:46 2014 Check interval: 0 (<none>) Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 256 Required extra isize: 28 Desired extra isize: 28 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: b8644024-bfaf-4f57-881b-1baedc261dd1 Journal backup: inode blocks Directories: 6 Group 0: block bitmap at 33, inode bitmap at 34, inode table at 35 27032 free blocks, 8175 free inodes, 2 used directories Group 1: block bitmap at 32801, inode bitmap at 32802, inode table at 32803 32149 free blocks, 8175 free inodes, 1 used directory Group 2: block bitmap at 65536, inode bitmap at 65537, inode table at 65538 28153 free blocks, 8192 free inodes, 0 used directories Group 3: block bitmap at 98337, inode bitmap at 98338, inode table at 98339 32155 free blocks, 8188 free inodes, 3 used directories |