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August 29, 2011 12:52
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| #1 - restore working copy of /sd-ext partition from backup | |
| ~ # dd if=/sdcard/mmc-good.img of=/dev/block/mmcblk0p2 bs=4096 | |
| 125000+0 records in | |
| 125000+0 records out | |
| 512000000 bytes (488.3MB) copied, 109.406085 seconds, 4.5MB/s | |
| #2 - check tune2fs output | |
| ~ # tune2fs -l /dev/block/mmcblk0p2 | |
| tune2fs 1.41.6 (30-May-2009) | |
| Filesystem volume name: <none> | |
| Last mounted on: /data/dalvik-cache | |
| Filesystem UUID: ee402fee-fd48-49ee-a19e-55a95ebf5497 | |
| Filesystem magic number: 0xEF53 | |
| Filesystem revision #: 1 (dynamic) | |
| Filesystem features: ext_attr dir_index filetype extent sparse_super uninit_bg | |
| Filesystem flags: unsigned_directory_hash | |
| Default mount options: journal_data_writeback | |
| Filesystem state: clean | |
| Errors behavior: Continue | |
| Filesystem OS type: Linux | |
| Inode count: 125416 | |
| Block count: 499713 | |
| Reserved block count: 25000 | |
| Free blocks: 441464 | |
| Free inodes: 125369 | |
| First block: 1 | |
| Block size: 1024 | |
| Fragment size: 1024 | |
| Blocks per group: 8192 | |
| Fragments per group: 8192 | |
| Inodes per group: 2056 | |
| Inode blocks per group: 257 | |
| Filesystem created: Mon Aug 29 08:04:17 2011 | |
| Last mount time: Mon Aug 29 08:44:35 2011 | |
| Last write time: Mon Aug 29 12:44:24 2011 | |
| Mount count: 0 | |
| Maximum mount count: 31 | |
| Last checked: Mon Aug 29 12:44:24 2011 | |
| Check interval: 15552000 (6 months) | |
| Next check after: Sat Feb 25 12:44:24 2012 | |
| Lifetime writes: 45 MB | |
| Reserved blocks uid: 0 (user unknown) | |
| Reserved blocks gid: 0 (group unknown) | |
| First inode: 11 | |
| Inode size: 128 | |
| Default directory hash: half_md4 | |
| Directory Hash Seed: 64da3c93-1681-4d47-ae1e-7f411f9cc692 | |
| #3 - verify integrity of manually-restored backup | |
| ~ # e2fsck -yf /dev/block/mmcblk0p2 | |
| e2fsck 1.41.6 (30-May-2009) | |
| Pass 1: Checking inodes, blocks, and sizes | |
| Pass 2: Checking directory structure | |
| Pass 3: Checking directory connectivity | |
| Pass 4: Checking reference counts | |
| Pass 5: Checking group summary information | |
| /dev/block/mmcblk0p2: 47/125416 files (4.3% non-contiguous), 58249/499713 blocks | |
| #4 - in CWM, perform full backup | |
| #5 - in CWM, perform advanced restore of /sd-ext only | |
| #6 - check tune2fs output of CWM-restored partition | |
| ~ # tune2fs -l /dev/block/mmcblk0p2 | |
| tune2fs 1.41.6 (30-May-2009) | |
| Filesystem volume name: <none> | |
| Last mounted on: /sd-ext | |
| Filesystem UUID: 57f8f4bc-abf4-0000-675f-946fc0f9f25b | |
| Filesystem magic number: 0xEF53 | |
| Filesystem revision #: 1 (dynamic) | |
| Filesystem features: has_journal resize_inode filetype extent sparse_super large_file | |
| Filesystem flags: unsigned_directory_hash | |
| Default mount options: (none) | |
| Filesystem state: clean | |
| Errors behavior: Remount read-only | |
| Filesystem OS type: Linux | |
| Inode count: 31252 | |
| Block count: 125000 | |
| Reserved block count: 0 | |
| Free blocks: 110362 | |
| Free inodes: 31205 | |
| First block: 0 | |
| Block size: 4096 | |
| Fragment size: 4096 | |
| Reserved GDT blocks: 31 | |
| Blocks per group: 32768 | |
| Fragments per group: 32768 | |
| Inodes per group: 7813 | |
| Inode blocks per group: 489 | |
| Last mount time: Mon Aug 29 12:48:41 2011 | |
| Last write time: Mon Aug 29 12:49:00 2011 | |
| Mount count: 1 | |
| Maximum mount count: -1 | |
| Last checked: Thu Jan 1 00:00:00 1970 | |
| Check interval: 0 (<none>) | |
| Lifetime writes: 42 MB | |
| Reserved blocks uid: 0 (user unknown) | |
| Reserved blocks gid: 0 (group unknown) | |
| First inode: 11 | |
| Inode size: 256 | |
| Required extra isize: 28 | |
| Desired extra isize: 28 | |
| Journal inode: 8 | |
| Default directory hash: tea | |
| Journal backup: inode blocks | |
| #7 - check integrity of CWM-restored partition | |
| ~ # e2fsck -yf /dev/block/mmcblk0p2 | |
| e2fsck 1.41.6 (30-May-2009) | |
| Pass 1: Checking inodes, blocks, and sizes | |
| Pass 2: Checking directory structure | |
| Pass 3: Checking directory connectivity | |
| Pass 4: Checking reference counts | |
| Pass 5: Checking group summary information | |
| Inode bitmap differences: -(7809--7813) +(7837--7841) -(15617--15624) +(15627--15634) | |
| Fix? yes | |
| /dev/block/mmcblk0p2: ***** FILE SYSTEM WAS MODIFIED ***** | |
| /dev/block/mmcblk0p2: 47/31252 files (2.1% non-contiguous), 14638/125000 blocks | |
| e2fsck: Invalid argument passed to ext2 library while rewriting block and inode bitmaps for /dev/block/mmcblk0p2 | |
| #8 - in CWM, format /sd-ext partition | |
| #9 - verify integrity of freshly-formatted partition | |
| ~ # e2fsck -yf /dev/block/mmcblk0p2 | |
| e2fsck 1.41.6 (30-May-2009) | |
| Pass 1: Checking inodes, blocks, and sizes | |
| Pass 2: Checking directory structure | |
| Pass 3: Checking directory connectivity | |
| Unconnected directory inode 7814 (/???) | |
| Connect to /lost+found? yes | |
| Unconnected directory inode 15627 (/???) | |
| Connect to /lost+found? yes | |
| Unconnected directory inode 15628 (/???) | |
| Connect to /lost+found? yes | |
| Unconnected directory inode 15634 (/???) | |
| Connect to /lost+found? yes | |
| Pass 4: Checking reference counts | |
| Inode 2 ref count is 0, should be 3. Fix? yes | |
| Inode 7814 ref count is 3, should be 2. Fix? yes | |
| Inode 15627 ref count is 3, should be 2. Fix? yes | |
| Inode 15628 ref count is 3, should be 2. Fix? yes | |
| Inode 15634 ref count is 3, should be 2. Fix? yes | |
| Pass 5: Checking group summary information | |
| Block bitmap differences: +(2560--7766) +(16384--17123) +(33292--33303) +(33312--36914) +(36916--37192) +(37196--37199) +(66027--66802) | |
| Fix? yes | |
| Free blocks count wrong for group #0 (30288, counted=24341). | |
| Fix? yes | |
| Free blocks count wrong for group #1 (32244, counted=28348). | |
| Fix? yes | |
| Free blocks count wrong for group #2 (32277, counted=31501). | |
| Fix? yes | |
| Free blocks count wrong (120981, counted=110362). | |
| Fix? yes | |
| Inode bitmap differences: +(7814--7841) +(15627--15634) | |
| Fix? yes | |
| Free inodes count wrong for group #1 (7813, counted=7785). | |
| Fix? yes | |
| Directories count wrong for group #1 (0, counted=1). | |
| Fix? yes | |
| Free inodes count wrong for group #2 (7813, counted=7805). | |
| Fix? yes | |
| Directories count wrong for group #2 (0, counted=3). | |
| Fix? yes | |
| Free inodes count wrong (31241, counted=31205). | |
| Fix? yes | |
| /dev/block/mmcblk0p2: ***** FILE SYSTEM WAS MODIFIED ***** | |
| /dev/block/mmcblk0p2: 47/31252 files (2.1% non-contiguous), 14638/125000 blocks | |
| e2fsck: Invalid argument passed to ext2 library while rewriting block and inode bitmaps for /dev/block/mmcblk0p2 | |
| #10 - manually format via mke2fs | |
| ~ # mke2fs /dev/block/mmcblk0p2 | |
| warning: 287 blocks unused | |
| Filesystem label= | |
| OS type: Linux | |
| Block size=1024 (log=0) | |
| Fragment size=1024 (log=0) | |
| 125416 inodes, 499713 blocks | |
| 25000 blocks (5%) reserved for the super user | |
| First data block=1 | |
| Maximum filesystem blocks=524288 | |
| 61 block groups | |
| 8192 blocks per group, 8192 fragments per group | |
| 2056 inodes per group | |
| Superblock backups stored on blocks: | |
| 8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409 | |
| #11 - verify integrity of manually-formatted partition | |
| ~ # e2fsck -yf /dev/block/mmcblk0p2 | |
| e2fsck 1.41.6 (30-May-2009) | |
| Pass 1: Checking inodes, blocks, and sizes | |
| Pass 2: Checking directory structure | |
| Pass 3: Checking directory connectivity | |
| Pass 4: Checking reference counts | |
| Pass 5: Checking group summary information | |
| /dev/block/mmcblk0p2: 11/125416 files (0.0% non-contiguous), 15840/499713 blocks |
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#8 - in CWM, format /sd-ext partition
#9 - verify integrity of freshly-formatted partition
~ # e2fsck -yf /dev/block/mmcblk0p2
e2fsck 1.41.6 (30-May-2009)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Unconnected directory inode 7814 (/???)
Connect to /lost+found? yes
Unconnected directory inode 15627 (/???)
Connect to /lost+found? yes
Unconnected directory inode 15628 (/???)
Connect to /lost+found? yes
Unconnected directory inode 15634 (/???)
Connect to /lost+found? yes
Pass 4: Checking reference counts
Inode 2 ref count is 0, should be 3. Fix? yes
Inode 7814 ref count is 3, should be 2. Fix? yes
Inode 15627 ref count is 3, should be 2. Fix? yes
Inode 15628 ref count is 3, should be 2. Fix? yes
Inode 15634 ref count is 3, should be 2. Fix? yes
Pass 5: Checking group summary information
Block bitmap differences: +(2560--7766) +(16384--17123) +(33292--33303) +(33312--36914) +(36916--37192) +(37196--37199) +(66027--66802)
Fix? yes
Free blocks count wrong for group #0 (30288, counted=24341).
Fix? yes
Free blocks count wrong for group #1 (32244, counted=28348).
Fix? yes
Free blocks count wrong for group #2 (32277, counted=31501).
Fix? yes
Free blocks count wrong (120981, counted=110362).
Fix? yes
Inode bitmap differences: +(7814--7841) +(15627--15634)
Fix? yes
Free inodes count wrong for group #1 (7813, counted=7785).
Fix? yes
Directories count wrong for group #1 (0, counted=1).
Fix? yes
Free inodes count wrong for group #2 (7813, counted=7805).
Fix? yes
Directories count wrong for group #2 (0, counted=3).
Fix? yes
Free inodes count wrong (31241, counted=31205).
Fix? yes
/dev/block/mmcblk0p2: ***** FILE SYSTEM WAS MODIFIED *****
/dev/block/mmcblk0p2: 47/31252 files (2.1% non-contiguous), 14638/125000 blocks
e2fsck: Invalid argument passed to ext2 library while rewriting block and inode bitmaps for /dev/block/mmcblk0p2
#10 - manually format via mke2fs
~ # mke2fs /dev/block/mmcblk0p2
warning: 287 blocks unused
Filesystem label=
OS type: Linux
Block size=1024 (log=0)
Fragment size=1024 (log=0)
125416 inodes, 499713 blocks
25000 blocks (5%) reserved for the super user
First data block=1
Maximum filesystem blocks=524288
61 block groups
8192 blocks per group, 8192 fragments per group
2056 inodes per group
Superblock backups stored on blocks:
8193, 24577, 40961, 57345, 73729, 204801, 221185, 401409
#11 - verify integrity of manually-formatted partition
~ # e2fsck -yf /dev/block/mmcblk0p2
e2fsck 1.41.6 (30-May-2009)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/block/mmcblk0p2: 11/125416 files (0.0% non-contiguous), 15840/499713 blocks