XO-1.5 users: need your SD card data

Daniel Drake dsd at laptop.org
Sat Apr 30 08:45:07 EDT 2011


On 26 April 2011 00:02, John Gilmore <gnu at toad.com> wrote:
> There's now a mkfs option that doesn't zero all the inodes while
> building the file system.  It instead sets an extent for the inode
> tables, in the superblock, and the kernel zeroes more inodes as it
> needs to, in parallel with ordinary system operation.  It also has a
> similar option for the block groups.  This is the lazy_itable_init
> option set with mke2fs -E and the uninit_bg option set with mke2fs -O.
>
> uninit_bg works only with ext4.  I think lazy_itable_init works with
> ext3.

Thanks, I had spotted this as well. I don't think its available in the
kernels we ship, but should definitely be considered for the future,
because it may allow us to cheaply implement automatic filesystem
resizing: http://dev.laptop.org/ticket/10040

Daniel


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