Hi, Below is snippet of superblock information of one of the block device(say /dev/sda1) Which mentions about the reserved blocks- Reserved block count: 25600 Does anyone know about how to find out list of blocks which are reserved(actual block numbers not count). ------------------------------------------------- Filesystem volume name: <none> Last mounted on: /boot Filesystem UUID: 99ec51e5-8729-4cab-b2ea-6b55b302aae6 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal ext_attr resize_inode dir_index filetype needs_recovery extent flex_bg sparse_super huge_file uninit_bg dir_nlink extra_isize Filesystem flags: signed_directory_hash Default mount options: user_xattr acl Filesystem state: clean Errors behavior: Continue Filesystem OS type: Linux Inode count: 128016 Block count: 512000 Reserved block count: 25600 Free blocks: 439769 Free inodes: 127977 First block: 1 Block size: 1024 Fragment size: 1024 Reserved GDT blocks: 256 Blocks per group: 8192 Fragments per group: 8192 Inodes per group: 2032 Inode blocks per group: 254 Flex block group size: 16 Filesystem created: Thu Aug 8 06:35:16 2013 Last mount time: Tue Nov 25 18:52:26 2014 Last write time: Tue Nov 25 18:52:26 2014 Mount count: 12 Maximum mount count: -1 Last checked: Thu Aug 8 06:35:16 2013 Check interval: 0 (<none>) Lifetime writes: 105 MB Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal inode: 8 Default directory hash: half_md4 Directory Hash Seed: 4c6e20ac-c46d-4bf1-81c1-3c5ae77eaab7 Journal backup: inode blocks Journal features: journal_incompat_revoke Journal size: 8M Journal length: 8192 Journal sequence: 0x00000028 Journal start: 0 --------------------------------------------- Thanks, -Jitendra -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
