sda2 is corrupted

[Joe Wulf]

Another option for you, is to check out 'runtime.org'.  Disclaimer... I do own some of their products and have had great success with them.
They have a "Disk Explorer for Linux v4.26".. don't know for certain if it will examine the drive you are having problems with, but it is worth a shot.  They have a free download and it is $69.00 to purchase it.
They also have a free Live CD that is bootable and has their products embeded for use.




>________________________________
> From: Jim <binarynut at comcast.net>
>To: mcallman at allmanpc.com; Community support for Fedora users <users at lists.fedoraproject.org> 
>Sent: Thursday, July 5, 2012 2:30 PM
>Subject: Re: sda2 is corrupted
> 
>On 07/05/2012 02:13 PM, Mark C. Allman wrote:
>> On Thu, 2012-07-05 at 13:47 -0400, Jim wrote:
>>> On 07/05/2012 01:23 PM, Mateusz Marzantowicz wrote:
>>>> On 05.07.2012 19:15, Jim wrote:
>>>>> Fedora 17
>>>>>
>>>>> the sda2 /home is corruoted and it changed /home partitiion to UNKNOWN
>>>>> and it won't let me change the label back to /home
>>>>>
>>>>> I have tried to use fedora and Gparted with no luck.
>>>>>
>>>>> There are some important data files  I must save off of sda2
>>>>>
>>>>>
>>>> 1. What is the type of that file system?
>>> ext4
>>>> 2. Can you paste error messages related to this partition?
>>> No , Gparted can not mount it either
>>>> 3. What happens after system reboot? Does it mount or not?
>>> No , only  / is mounted
>>>>
>>>> Mateusz Marzantowicz
>>>
>> So when the system reboots you see a /dev/sda2 device, correct?
>>
>> When you type "mount /dev/sda2 /somewhere" (where "somewhere" is some
>> existing, handy mount point) you get an error message saying that the
>> file system isn't recognized or can't be determined?
>>
>> If you type "mount -t ext4 /dev/sda2 /somewhere" you get an error
>> message, e.g., "not an ext4 filesystem?"
>>
>> What I would try next is running "e2fsck -n /dev/sda2" and see what that
>> says.  The "-n" to insure nothing is written to the disk (just in case).
>> Try it and post the results to the list here.  The partition superblock
>> may be corrupted and I have no idea what e2fsck will try to do if that's
>> the case.  It may just give up without looking at the backup superblock.
>>
>  # e2fsck -n /dev/sda2
>e2fsck 1.42 (29-Nov-2011)
>e2fsck: Superblock invalid, trying backup blocks...
>Superblock has an invalid journal (inode 8).
>Clear? no
>
>e2fsck: Illegal inode number while checking ext3 journal for /home
>
>/home: ********** WARNING: Filesystem still has errors **********
>
>
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