On Mon, Oct 03, 2011 at 03:10:43PM -0500, Eric Sandeen wrote:
On 10/3/11 1:13 PM, Richard W.M. Jones wrote:
> On Mon, Sep 26, 2011 at 02:51:33PM -0500, Eric Sandeen wrote:
>> Another little heads up - a newer snapshot is built in rawhide now.
>>
>> Anyone who wants to fiddle with large ext4 filesystems, have at
>> it please!
>
> Is there any background information to this change that I can read?
>
> I created a 2**60 byte disk, partitioned it, and tried to create an
> ext4 filesystem on it, but that doesn't work:
heh; going for the gusto I see!
Can we maybe start with a mere 500 terabytes? ;)
Well I started with 2**63-513, but sadly qemu has a bug that prevents
me from writing to such a disk ...
https://rwmj.wordpress.com/2011/10/03/maximum-qcow2-disk-size/
https://bugs.launchpad.net/qemu/+bug/865518
> ><rescue> mke2fs -t ext4 /dev/vda1
> mke2fs 1.42-WIP (25-Sep-2011)
>
> Warning: the fs_type huge is not defined in mke2fs.conf
Icky, but unrelated to below, I think
> /dev/vda1: Cannot create filesystem with requested number of inodes while setting
up superblock
sounds like it calculated an inode ratio that put it over the 2^32 inode nr. limit.
I'll look into it.
Thanks. Let me know if/when there's anything else I can test.
Rich.
--
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