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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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 Posted: Thu Apr 06, 2006 9:34 pm Post subject: 37.3GB usb hard drive only 18Gb's of space |
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| I pulled my 40gb hard drive from the laptop I fried, and bought a 2.5" usb 2.0 enclosure for it. Even though the icon on the desktop says "37.3 GB Volume", a df -m results in 18773 mb's of space. Where's the other ~9 gb's of space? |
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think4urs11
Bodhisattva
Joined: 25 Jun 2003
Posts: 6659
Location: above the cloud
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| Posted: Thu Apr 06, 2006 9:41 pm Post subject: |
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what gives as result?
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Nothing is secure / Security is always a trade-off with usability / Do not assume anything / Trust no-one, nothing / Paranoia is your friend / Think for yourself |
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ericxx2005
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Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Thu Apr 06, 2006 9:44 pm Post subject: |
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Disk /dev/sda: 38154 cylinders, 64 heads, 32 sectors/track
Units = cylinders of 1048576 bytes, blocks of 1024 bytes, counting from 0
Device Boot Start End #cyls #blocks Id System
/dev/sda1 * 0+ 38153 38154- 39069680 83 Linux
/dev/sda2 0 - 0 0 0 Empty
/dev/sda3 0 - 0 0 0 Empty
/dev/sda4 0 - 0 0 0 Empty |
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think4urs11
Bodhisattva
Joined: 25 Jun 2003
Posts: 6659
Location: above the cloud
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| Posted: Thu Apr 06, 2006 10:31 pm Post subject: |
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what filesystem? i suppose you already checked with ls -la for hidden files?
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Nothing is secure / Security is always a trade-off with usability / Do not assume anything / Trust no-one, nothing / Paranoia is your friend / Think for yourself |
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Thu Apr 06, 2006 11:21 pm Post subject: |
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Doesn't seem to be any hidden files.
here's some more info:
| Code: | localhost disk # df -m
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/hda3 57222 31449 25774 55% /
udev 443 1 443 1% /dev
/dev/hda1 92 20 67 23% /boot
shm 443 0 443 0% /dev/shm
/dev/sda1 18773 16322 1498 92% /media/disk |
Seems that the it's only 18773 mb's, but should be closer to 37000 or so. cfdisk says its a 40000 mb ext3 partition. |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
Posts: 4791
Location: 2 exits past crazy
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| Posted: Thu Apr 06, 2006 11:38 pm Post subject: |
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Backup anything you need off of it, then re-partition it and reformat it and see what happens.
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| Bones McCracker wrote: | | On the other hand, regex is popular with the ladies. |
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Thu Apr 06, 2006 11:41 pm Post subject: |
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| i'd like to wait and see if anyone else has anymore ideas before I reformat it, but I will definitely give that a go in a day or two to see if that does the trick. I'd like to know what caused it in the first place either way. |
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yabbadabbadont
Advocate
Joined: 14 Mar 2003
Posts: 4791
Location: 2 exits past crazy
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| Posted: Thu Apr 06, 2006 11:43 pm Post subject: |
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If you boot with it attached, what does dmesg show when it detects the drive?
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| Bones McCracker wrote: | | On the other hand, regex is popular with the ladies. |
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Thu Apr 06, 2006 11:50 pm Post subject: |
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| Code: | EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
usb 1-2: USB disconnect, address 3
usb 1-2: new high speed USB device using ehci_hcd and address 6
scsi2 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 6
usb-storage: waiting for device to settle before scanning
Vendor: IC25N040 Model: ATCS04-0 Rev: 0811
Type: Direct-Access ANSI SCSI revision: 00
SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
sda: assuming drive cache: write through
SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
sda: assuming drive cache: write through
sda: sda1
sd 2:0:0:0: Attached scsi disk sda
usb-storage: device scan complete
kjournald starting. Commit interval 5 seconds
EXT3-fs warning: maximal mount count reached, running e2fsck is recommended
EXT3 FS on sda1, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Thu Apr 06, 2006 11:52 pm Post subject: |
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I tried fscking the drive and get this.
| Code: | localhost ~ # fsck -t ext3 /dev/sda
fsck 1.38 (30-Jun-2005)
e2fsck 1.38 (30-Jun-2005)
Couldn't find ext2 superblock, trying backup blocks...
fsck.ext3: Bad magic number in super-block while trying to open /dev/sda
The superblock could not be read or does not describe a correct ext2
filesystem. If the device is valid and it really contains an ext2
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
e2fsck -b 8193 <device>
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I don't know a lot about fsck on usb drives, am I missing something or could this be corrupted? |
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cyrillic
Watchman
Joined: 19 Feb 2003
Posts: 7313
Location: Groton, Massachusetts USA
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| Posted: Fri Apr 07, 2006 12:54 am Post subject: |
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| ericxx2005 wrote: | | am I missing something or could this be corrupted? |
You are missing the partition number.
Try this
| Code: | | # fsck.ext3 /dev/sda1 |
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Fri Apr 07, 2006 4:02 am Post subject: |
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I was able to fdisk it with a backup superblock, but it moved all my files to look like this:
| Code: | #2403823 #2420145 #2420396 #2420647 #2420898 #32744 #49219 #65602 #98301
#2403824 #2420146 #2420397 #2420648 #2420899 #32745 #49220 #65603 #98302
#2403825 #2420147 #2420398 #2420649 #2420900 #32746 #49221 #65604 #98303
#2403826 #2420148 #2420399 #2420650 #2420901 #32747 #49222 #65605 #98304
#2403827 #2420149 #2420400 #2420651 #2420902 #32748 #49223 #65606 #98305
#2403828 #2420150 #2420401 #2420652 #2420903 #32749 #49224 #65607 #98306
#2403829 #2420151 #2420402 #2420653 #2420904 #32750 #49225 #65608 #98307
#2403830 #2420152 #2420403 #2420654 #2420905 #32751 #49226 #65609 #98308
#2403831 #2420153 #2420404 #2420655 #2420906 #32752 #49227 #65610 #98309
#2403832 #2420154 #2420405 #2420656 #2420907 #32753 #49228 #65611 #98310
#2403833 #2420155 #2420406 #2420657 #2420908 #32754 #49229 #65612 #98311
#2403834 #2420156 #2420407 #2420658 #2420909 #32755 #49230 #65613
#2403835 #2420157 #2420408 #2420659 #2420910 #32756 #49231 #65614
#2403836 #2420158 #2420409 #2420660 #2420911 #32757 #49232 #65615
#2403837 #2420159 #2420410 #2420661 #2420912 #32758 #49233 #65616
#2403838 #2420160 #2420411 #2420662 #2420913 #32759 #49234 #65617 |
These are all now in lost&found. How do I restore them? They were perfectly fine files before I did the fdisk.
EDIT: the fdisk did, however, restore my usb hdd to 37.3 gb's. thanks for all the help so far, I guess I just need to be more careful to unmount usb devices. Just need to sort out this lost&found crap, which is kinda irriplacible. So I guess I learned my lession about 'backing up' also, just didn't realize that fdisk could make files inaccessible. |
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ericxx2005
Apprentice
Joined: 05 Apr 2005
Posts: 231
Location: 10 square miles surrounded by reality
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| Posted: Fri Apr 07, 2006 3:53 pm Post subject: |
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| Nevermind, I guess I just had to move the files out of the folder to recover them. Thanks for everyone's help! |
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grigole
n00b
Joined: 14 Dec 2005
Posts: 11
Location: Toronto, ON
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| Posted: Fri Apr 07, 2006 8:03 pm Post subject: |
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| ericxx2005 wrote: | I was able to fdisk it with a backup superblock, but it moved all my files to look like this:
| Code: | #2403823 #2420145 #2420396 #2420647 #2420898 #32744 #49219 #65602 #98301
#2403824 #2420146 #2420397 #2420648 #2420899 #32745 #49220 #65603 #98302
#2403825 #2420147 #2420398 #2420649 #2420900 #32746 #49221 #65604 #98303
#2403826 #2420148 #2420399 #2420650 #2420901 #32747 #49222 #65605 #98304
#2403827 #2420149 #2420400 #2420651 #2420902 #32748 #49223 #65606 #98305
#2403828 #2420150 #2420401 #2420652 #2420903 #32749 #49224 #65607 #98306
#2403829 #2420151 #2420402 #2420653 #2420904 #32750 #49225 #65608 #98307
#2403830 #2420152 #2420403 #2420654 #2420905 #32751 #49226 #65609 #98308
#2403831 #2420153 #2420404 #2420655 #2420906 #32752 #49227 #65610 #98309
#2403832 #2420154 #2420405 #2420656 #2420907 #32753 #49228 #65611 #98310
#2403833 #2420155 #2420406 #2420657 #2420908 #32754 #49229 #65612 #98311
#2403834 #2420156 #2420407 #2420658 #2420909 #32755 #49230 #65613
#2403835 #2420157 #2420408 #2420659 #2420910 #32756 #49231 #65614
#2403836 #2420158 #2420409 #2420660 #2420911 #32757 #49232 #65615
#2403837 #2420159 #2420410 #2420661 #2420912 #32758 #49233 #65616
#2403838 #2420160 #2420411 #2420662 #2420913 #32759 #49234 #65617 |
These are all now in lost&found. How do I restore them? They were perfectly fine files before I did the fdisk.
EDIT: the fdisk did, however, restore my usb hdd to 37.3 gb's. thanks for all the help so far, I guess I just need to be more careful to unmount usb devices. Just need to sort out this lost&found crap, which is kinda irriplacible. So I guess I learned my lession about 'backing up' also, just didn't realize that fdisk could make files inaccessible. |
If you did that fsck with '/dev/sda' instead of '/dev/sda1', then you hosed your data and your filesystem now occupies the entire disk (including block 1 - the loader and partition table area).
Or perhaps the partition was corrupt to start with. |
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