Re: 64bit ext4 and kernel version compatibility
On Thu, 2020-01-09 at 09:02 +0100, Klaus Singvogel wrote:
> R. Ramesh wrote:
> > I want to make sure
> > that my current kernel version does not have any limitation to support 64bit
> > ext4.
>
> Please consult the Kernel Wiki regarding Ext4:
>
> https://ext4.wiki.kernel.org/index.php/Main_Page
>
> You will notice that Linux 2.6.28 was the first suppored kernel with ext4,
> which was released a quiet long time ago (around 2009). As your
> distribution is running 3.13.0-132-generic, the support of ext4 should be
> no problem (never tested it to be 100% sure).
But features keep getting added to filesystems as time goes by and it's
quite possible that support for 64-bit block numbers wasn't included
from the start. The man page for e2fsprogs says this about the '64bit'
option: "Note that some older kernels and older versions of e2fsprogs
will not support file systems with this ext4 feature enabled"
--
Tixy
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