Edit: Need help by resizing ext3 Partition w/o data loss!

**wartiger** · 12-21-2004, 05:55 PM

Hi,

I wanted to change my Windows NTFS Partition with Partition Magic, but I got after a few percent an "Seek Error #46".
After that, my NTFS Partition with Win2000 could'nt boot ... It quited booting with the error: "Inaccessible_Boot_Device".
I tried the Repair Funktion from Win 2000 CD but It didn't help. chkdsk /f didn't worked and it came the error "Could'nt find partition"

With my Fedora Core 3 Installation, I can't mount the NTFS Partition. It says "Can't mount partition, bad superblock..."

But with Knoppix 3.7 CD I can read the partition and my question is now: Is there any programm or function like chkdsk in Knoppix/Linux
or any other thing which can repair by bad ntfs partition/the superblock.

???

**Harry Kuhman** · 12-21-2004, 06:20 PM

Originally Posted by wartiger

......But with Knoppix 3.7 CD I can read the partition and my question is now: Is there any programm or function like chkdsk in Knoppix/Linux
or any other thing which can repair by bad ntfs partition/the superblock.

Your best bet by far wouold be to use Knoppix to recover anything you want to save from that NTFS partition, and then use normal Windows tools to delete the partition, then recreate it and reformat it.

**wartiger** · 12-22-2004, 05:57 PM

Originally Posted by Harry Kuhman

Originally Posted by wartiger

......But with Knoppix 3.7 CD I can read the partition and my question is now: Is there any programm or function like chkdsk in Knoppix/Linux
or any other thing which can repair by bad ntfs partition/the superblock.

Your best bet by far wouold be to use Knoppix to recover anything you want to save from that NTFS partition, and then use normal Windows tools to delete the partition, then recreate it and reformat it.

Hey,

thanks for your reply. I'll do that, but there is the first problem:
I have second harddrive with an ext3 partition, there I will copy my ntfs files, but when I boot from the Knoppix Live CD, I have no write access on hdb1.
How can I change that?
Can Linux copy files from ntfs to ext3? Normally yes, or not?

**Harry Kuhman** · 12-22-2004, 07:00 PM

Originally Posted by wartiger

thanks for your reply. I'll do that, but there is the first problem:
I have second harddrive with an ext3 partition, there I will copy my ntfs files, but when I boot from the Knoppix Live CD, I have no write access on hdb1.
How can I change that?
Can Linux copy files from ntfs to ext3? Normally yes, or not?

You can change the read-only access to read/write a number of ways. I usually use the mount command (from a shell, see man mount). But you can also do it from the desktop icon. First right click on the icon and mount it. Then right click and go to the actions... option, which gives you a sub-menu where you make the partition read/write.

Sure, Linux can copy files from an NTFS partition just fine, and it can write them to a Linux partition (which you'll only be able to read with Linux, doh) or to any of the normal FAT partitions, which you could then read with a MS OS.

**wartiger** · 12-22-2004, 08:29 PM

Hey,

ok, thanks a lot. It works now... I'm cp'ing ...

Now a last question: Can I change the size of my Linux Partition with Partition Magic without any problems?!
I mean, does Linux boot after a size-change?

Or are there any better programms for changing the size of an "active" linux partition?

**firebyrd10** · 12-23-2004, 12:53 AM

The newer partition magics should be able to resize correctly, Though you could always use ext2resizer but that requires messing with fdisk.

**wartiger** · 12-23-2004, 04:04 PM

Hi,

it seems that this will take long...
Partition Magic 8 can't resize ext3 Partitions. Parted can't do that too...
ok, no problem, I just converted my ext3 to ext2 with tune2fs -O ^has_jounral /dev/hda1

BUT, parted quitted with the same error as before ("Filesystem has incompatible features")
Partition Magic can't resize the converted "ext2" partition too...
What now?

dumpe2fs /dev/hda1 says

Code:

...
Filesystem features:      ext_attr resize_inode dir_index filetype sparse_super large_file
...

Hmmm, someone knows anything to do?

[/code]

**wartiger** · 12-24-2004, 03:54 PM

Hmmm, some knows help?

**CrashedAgain** · 12-25-2004, 03:14 AM

I had the same problem (parted unable to resize ext3 partition with knoppix on it...see post http://www.knoppix.net/forum/viewtopic.php?t=13566) I ended up using fdisk (linux fdisk, not MS fdisk) which meant the knoppix install was trashed.
Why do you need to resize? Are you running out of space? You can maybe get around resizing by creating a new partition then moving /home or something to it so your knoppix install is spread over two partitions. Or you could remove some unneeded applications to free up some space.