I installed windows 10 to update my bios, this was successful. After going back to Ubuntu MATE, my secondary 3TB hdd somehow gained a NTFS partition on it, and the other partition was marked as "unallocated". I deleted the NTFS partition and now I am left with a single ext4 partition that can't be mounted. I am not sure what happened or if I am able to get this mounted again to get my data off. I am new to all of this and looking for a place to start. Is it possible the partition table was simply damaged? I did not format or write to this partition when I installed windows.
ext4 drive unmountable after windows install
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When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
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Re: ext4 drive unmountable after windows install
No. An additional NTFS partition is not created by a damaging operation.talormanda wrote: ↑08 Aug 2020, 00:26 I installed windows 10 to update my bios, this was successful. After going back to Ubuntu MATE, my secondary 3TB hdd somehow gained a NTFS partition on it, and the other partition was marked as "unallocated". I deleted the NTFS partition and now I am left with a single ext4 partition that can't be mounted. I am not sure what happened or if I am able to get this mounted again to get my data off. I am new to all of this and looking for a place to start. Is it possible the partition table was simply damaged?
A good place to start is:
https://www.cgsecurity.org/testdisk.pdf
and
https://www.cgsecurity.org/wiki/TestDisk
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Re: ext4 drive unmountable after windows install
Run as root "fsck.ext4 /dev/sdb". What is the output ?
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Re: ext4 drive unmountable after windows install
Code: Select all
e2fsck 1.45.5 (07-Jan-2020)
3TB: clean, 89101/183148544 files, 399232435/732566646 blocks
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Re: ext4 drive unmountable after windows install
Another NTFS partition? There is no NTFS partition on the pics you posted. You were talking about one NTFS partition in your first posting.talormanda wrote: ↑09 Aug 2020, 17:04I must also note that since this post, I deleted the NTFS partition and now it is one big partition again.Code: Select all
e2fsck 1.45.5 (07-Jan-2020) 3TB: clean, 89101/183148544 files, 399232435/732566646 blocks
[...and now it is one big partition again...] ??? And what is it?
Please specify, what "it" is.It shows there is 1.2TB free, but when mounting, it is empty.
If files can be recovered the keys for recovering are indicated. Did you see them?If I do a "quick search" on it, I can see the files (in a folder called "lost+found"). There is also a lot of files listed in red text. Unsure what to do at this point. It looks possible to copy the files, but I have no idea how to select only what I want (unless you have to do it one by one?).