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- ubuntu@ubuntu:~$ sudo mkfs.ext4 -n /dev/sda1
- mke2fs 1.41.14 (22-Dec-2010)
- Filesystem label=
- OS type: Linux
- Block size=4096 (log=2)
- Fragment size=4096 (log=2)
- Stride=0 blocks, Stripe width=0 blocks
- 6250496 inodes, 24999680 blocks
- 1249984 blocks (5.00%) reserved for the super user
- First data block=0
- Maximum filesystem blocks=4294967296
- 763 block groups
- 32768 blocks per group, 32768 fragments per group
- 8192 inodes per group
- Superblock backups stored on blocks:
- 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208,
- 4096000, 7962624, 11239424, 20480000, 23887872
- ubuntu@ubuntu:~$
- ubuntu@ubuntu:~$ e2fsck -b 32768 /dev/sda1
- e2fsck 1.41.14 (22-Dec-2010)
- e2fsck: Permission denied while trying to open /dev/sda1
- You must have r/w access to the filesystem or be root
- ubuntu@ubuntu:~$ sudo e2fsck -b 32768 /dev/sda1
- e2fsck 1.41.14 (22-Dec-2010)
- /dev/sda1 was not cleanly unmounted, check forced.
- 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
- Free blocks count wrong for group #62 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #76 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #161 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #293 (32254, counted=31287).
- Fix<y>? yes
- Free blocks count wrong for group #295 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #307 (32254, counted=26110).
- Fix<y>? yes
- Free blocks count wrong for group #308 (32254, counted=12981).
- Fix<y>? yes
- Free blocks count wrong for group #309 (32254, counted=26110).
- Fix<y>? yes
- Free blocks count wrong for group #310 (32254, counted=18626).
- Fix<y>? yes
- Free blocks count wrong for group #322 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #330 (32254, counted=29441).
- Fix<y>? yes
- Free blocks count wrong for group #331 (32254, counted=32168).
- Fix<y>? yes
- Free blocks count wrong for group #359 (32254, counted=32250).
- Fix<y>? yes
- Free blocks count wrong for group #416 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #423 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #433 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #508 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #547 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #564 (32254, counted=32249).
- Fix<y>? yes
- Free blocks count wrong for group #590 (32254, counted=29887).
- Fix<y>? yes
- Free blocks count wrong for group #605 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #630 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #722 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong for group #733 (32254, counted=32253).
- Fix<y>? yes
- Free blocks count wrong (24559316, counted=24507871).
- Fix<y>? yes
- yFree inodes count wrong for group #0 (8181, counted=8179).
- Fix<y>? yes
- Free inodes count wrong for group #62 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #62 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #76 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #76 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #161 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #161 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #293 (8192, counted=8183).
- Fix<y>? yes
- Directories count wrong for group #293 (0, counted=2).
- Fix<y>? yes
- Free inodes count wrong for group #295 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #295 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #307 (8192, counted=5520).
- Fix<y>? yes
- Directories count wrong for group #307 (0, counted=292).
- Fix<y>? yes
- Free inodes count wrong for group #309 (8192, counted=6262).
- Fix<y>? yes
- Directories count wrong for group #309 (0, counted=426).
- Fix<y>? yes
- Free inodes count wrong for group #322 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #322 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #330 (8192, counted=5676).
- Fix<y>? yes
- Directories count wrong for group #330 (0, counted=248).
- Fix<y>? yes
- Free inodes count wrong for group #331 (8192, counted=8116).
- Fix<y>? yes
- Directories count wrong for group #331 (0, counted=23).
- Fix<y>? yes
- Free inodes count wrong for group #359 (8192, counted=8100).
- Fix<y>? yes
- Directories count wrong for group #359 (0, counted=4).
- Fix<y>? yes
- Free inodes count wrong for group #416 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #416 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #423 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #423 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #433 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #433 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #508 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #508 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #547 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #547 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #564 (8192, counted=8187).
- Fix<y>? yes
- Directories count wrong for group #564 (0, counted=5).
- Fix<y>? yes
- Free inodes count wrong for group #590 (8192, counted=8016).
- Fix<y>? yes
- Directories count wrong for group #590 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #605 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #605 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #630 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #630 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #722 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #722 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong for group #733 (8192, counted=8191).
- Fix<y>? yes
- Directories count wrong for group #733 (0, counted=1).
- Fix<y>? yes
- Free inodes count wrong (6250485, counted=6242993).
- Fix<y>? yes
- /dev/sda1: ***** FILE SYSTEM WAS MODIFIED *****
- /dev/sda1: 7503/6250496 files (0.1% non-contiguous), 491809/24999680 blocks
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