ece01ee8c
Denys Vlasenko
2009-10-21
Subject
mkfs_ext2: e2fsck 1.14.4 compat
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util-linux/mkfs_ext2.c+6 -5
| @@ -605,16 +605,17 @@ int mkfs_ext2_main(int argc UNUSED_PARAM, char **argv) | |
| PUT(((uint64_t)FETCH_LE32(gd[0].bg_inode_table) * blocksize) + (EXT2_GOOD_OLD_FIRST_INO-1) * sizeof(*inode), | |
| buf, sizeof(*inode)); | |
| - | // zero the blocks for "/lost+found" |
| + | // dump directories |
| memset(buf, 0, blocksize); | |
| + | dir = (struct ext2_dir *)buf; |
| + | |
| + | // dump 2nd+ blocks of "/lost+found" |
| + | STORE_LE(dir->rec_len1, blocksize); // e2fsck 1.41.4 compat |
| for (i = 1; i < lost_and_found_blocks; ++i) | |
| PUT((uint64_t)(FETCH_LE32(gd[0].bg_inode_table) + inode_table_blocks + 1+i) * blocksize, | |
| buf, blocksize); | |
| - | // dump directories |
| - | dir = (struct ext2_dir *)buf; |
| - | |
| - | // dump lost+found dir block |
| + | // dump 1st block of "/lost+found" |
| STORE_LE(dir->inode1, EXT2_GOOD_OLD_FIRST_INO); | |
| STORE_LE(dir->rec_len1, 12); | |
| STORE_LE(dir->name_len1, 1); | |
util-linux/mkfs_ext2.txt+75 -0
| @@ -0,0 +1,75 @@ | |
| + | Difference between bbox mke2fs and standard one (dumpe2fs comparison): |
| + | |
| + | Two significant differences: |
| + | - standard mke2fs has resize_inode feature and thus has reserved GDT blocks, |
| + | which decreases free blocks; |
| + | - inode size: 128/256 (since 679807k is >0.5G, standard mke2fs uses "big" inodes) |
| + | this affects inode table in block groups |
| + | |
| + | Filesystem volume name: <none> Filesystem volume name: <none> |
| + | Last mounted on: <not available> Last mounted on: <not available> |
| + | Filesystem UUID: f4839760-c89b-44b7-ac52-08b4e326c0b4 Filesystem UUID: 71179558-8c8e-4a56-ad54-018008f5c358 |
| + | Filesystem magic number: 0xEF53 Filesystem magic number: 0xEF53 |
| + | Filesystem revision #: 1 (dynamic) Filesystem revision #: 1 (dynamic) |
| + | Filesystem features: ext_attr dir_index filetype sparse_super Filesystem features: ext_attr resize_inode dir_index filetype sparse_super large_file |
| + | Filesystem flags: signed_directory_hash Filesystem flags: signed_directory_hash |
| + | Default mount options: (none) Default mount options: (none) |
| + | Filesystem state: clean Filesystem state: clean |
| + | Errors behavior: Continue Errors behavior: Continue |
| + | Filesystem OS type: Linux Filesystem OS type: Linux |
| + | Inode count: 42624 Inode count: 42528 |
| + | Block count: 169951 Block count: 169951 |
| + | Reserved block count: 8497 Reserved block count: 8497 |
| + | Free blocks: 168594 Free blocks: 167103 |
| + | Free inodes: 42613 Free inodes: 42517 |
| + | First block: 0 First block: 0 |
| + | Block size: 4096 Block size: 4096 |
| + | Fragment size: 4096 Fragment size: 4096 |
| + | Reserved GDT blocks: 41 |
| + | Blocks per group: 32768 Blocks per group: 32768 |
| + | Fragments per group: 32768 Fragments per group: 32768 |
| + | Inodes per group: 7104 Inodes per group: 7088 |
| + | Inode blocks per group: 222 Inode blocks per group: 443 |
| + | Filesystem created: Wed Oct 21 13:40:55 2009 Filesystem created: Wed Oct 21 13:40:55 2009 |
| + | Last mount time: n/a Last mount time: n/a |
| + | Last write time: Wed Oct 21 13:40:55 2009 Last write time: Wed Oct 21 13:40:55 2009 |
| + | Mount count: 0 Mount count: 0 |
| + | Maximum mount count: 20 Maximum mount count: 37 |
| + | Last checked: Wed Oct 21 13:40:55 2009 Last checked: Wed Oct 21 13:40:55 2009 |
| + | Check interval: 15552000 (6 months) Check interval: 15552000 (6 months) |
| + | Next check after: Mon Apr 19 13:40:55 2010 Next check after: Mon Apr 19 13:40:55 2010 |
| + | Reserved blocks uid: 0 (user root) Reserved blocks uid: 0 (user root) |
| + | Reserved blocks gid: 0 (group root) Reserved blocks gid: 0 (group root) |
| + | First inode: 11 First inode: 11 |
| + | Inode size: 128 Inode size: 256 |
| + | Required extra isize: 28 |
| + | Desired extra isize: 28 |
| + | Default directory hash: half_md4 Default directory hash: half_md4 |
| + | Directory Hash Seed: ff94d047-c9ca-4fe5-b553-937a76101a89 Directory Hash Seed: c270fd43-9868-4a92-ae99-050098e12835 |
| + | |
| + | |
| + | Group 0: (Blocks 0-32767) Group 0: (Blocks 0-32767) |
| + | Primary superblock at 0, Group descriptors at 1-1 Primary superblock at 0, Group descriptors at 1-1 |
| + | Reserved GDT blocks at 2-42 |
| + | Block bitmap at 2 (+2), Inode bitmap at 3 (+3) Block bitmap at 43 (+43), Inode bitmap at 44 (+44) |
| + | Inode table at 4-225 (+4) Inode table at 45-487 (+45) |
| + | 32537 free blocks, 7093 free inodes, 2 directories 32274 free blocks, 7077 free inodes, 2 directories |
| + | Free blocks: 231-32767 Free blocks: 494-32767 |
| + | Free inodes: 12-7104 Free inodes: 12-7088 |
| + | |
| + | Group 1: (Blocks 32768-65535) Group 1: (Blocks 32768-65535) |
| + | Backup superblock at 32768, Group descriptors at 32769-32769 Backup superblock at 32768, Group descriptors at 32769-32769 |
| + | Reserved GDT blocks at 32770-32810 |
| + | Block bitmap at 32770 (+2), Inode bitmap at 32771 (+3) Block bitmap at 32811 (+43), Inode bitmap at 32812 (+44) |
| + | Inode table at 32772-32993 (+4) Inode table at 32813-33255 (+45) |
| + | 32542 free blocks, 7104 free inodes, 0 directories 32280 free blocks, 7088 free inodes, 0 directories |
| + | Free blocks: 32994-65535 Free blocks: 33256-65535 |
| + | Free inodes: 7105-14208 Free inodes: 7089-14176 |
| + | |
| + | Group 2: (Blocks 65536-98303) Group 2: (Blocks 65536-98303) |
| + | Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1) Block bitmap at 65536 (+0), Inode bitmap at 65537 (+1) |
| + | Inode table at 65538-65759 (+2) Inode table at 65538-65980 (+2) |
| + | 32544 free blocks, 7104 free inodes, 0 directories 32323 free blocks, 7088 free inodes, 0 directories |
| + | Free blocks: 65760-98303 Free blocks: 65981-98303 |
| + | Free inodes: 14209-21312 Free inodes: 14177-21264 |
| + | ... |