mounting an ext4 filesystem with block size of 65536

[Oguz Yilmaz]

--
Oguz YILMAZ



On Sat, Feb 5, 2011 at 11:54 PM, Jon Grant <jg at jguk.org> wrote:
> Oguz Yilmaz wrote, On 05/02/11 14:41:
>>
>> Dear list members,
>>
>> I do some benchmarking on EXT4 performance on Compact Flash media.
>> I have created an ext4 fs with block size of 65536. however I can not
>> mount it on ubuntu-10.10-netbook-i386.
>
> Remember this is logical block size of 64KB. The block device driver may
> function in 512 byte segments regardless of what the FS block size is. May
> be not worth your time investigating.
>
>> According to my readings on ext4 it should allow such big block sized
>> fs. I want hear your comments.
>
> Where/what has been read? is it really supported? Have you checked on the
> linux-kernel list or run on another distro?
>
http://lwn.net/Articles/266274/
Tehere are some toher references in google search also.

> [.]
>>
>> root at ubuntu:~# mount -t ext4 /dev/sda3 /mnt/
>> mount: wrong fs type, bad option, bad superblock on /dev/sda3,
>>        missing codepage or helper program, or other error
>>        In some cases useful info is found in syslog - try
>>        dmesg | tail  or so
>
> Have you contacted the "mount" developer mailing list? You will get
> approprietary info than a users mailing list I expect.
>

thanks for the pointer.

> Cheers, Jon
>
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