Mount Ext3 under DragonFlyBSD

v_2e at v_2e at
Fri Apr 27 21:35:11 PDT 2012

  So can anybody give me some advice on this? Should I really delete
the existing file system and create a new one with the 'sparse_super'
flag off?


On Fri, 6 Apr 2012 20:36:15 +0300
v_2e at wrote:

>   Hello!
>   I'm new (well, actually, very very very new) to DragonFlyBSD and
> currently doing my first steps with it.  I have Ext2 and Ext3
> partitions on my HDD (created under GNU/Linux) and I cannot use them
> under DragonFlyBSD. The problem is that when I try to mount any of
> them, I get the following error message:
>     # mount /dev/ad4s3 /mnt/data/
>     mount: /dev/ad4s3 on /mnt/data: incorrect super block
> Or if I state the FS type explicitly, I get this:
>     # mount -t ext2fs /dev/ad4s3 /mnt/data/
>     WARNING: R/W mount of #ad/0x40002 denied due to unsupported
> optional features 
>     ext2fs: /dev/ad4s3: Invalid argument
>   The only mode I can mount these file systems in is read-only mode.
> However, the file systems are not usable in this mode either, because
> I can only list the root catalog of the corresponding FS. Any attempt
> to list other catalogs or read some files leads to the following
> error message on the screen:
> and a system reboot.
> I searched over Internet for a similar issue and found only one sane
> article mentioning this problem
> ( ). Its
> author tells that the root of the problem is the 'sparse_super' flag
> set on the Ext2 file system and suggest to turn this flag off:
>     tune2fs -s off /dev/sda3
> I tried it under my GNU/Linux system, but it says only:
>     Clearing filesystem feature 'sparse_super' not supported.
> and does not do the job.
>   So now I just do not know what to do. How cat I use my existing
> Ext2/Ext3 file systems on DragonFlyBSD? Any suggestions?
>   Thanks.
>     Vladimir
> ----- 
>  <v_2e at>

 <v_2e at>

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