ext2/3/4 group size
mavrothal at yahoo.com
Thu Mar 31 13:42:43 EDT 2011
--- On Thu, 3/31/11, Arnd Bergmann <arnd at arndb.de> wrote:
> From: Arnd Bergmann <arnd at arndb.de>
> Subject: Re: ext2/3/4 group size
> To: devel at lists.laptop.org
> Cc: "Yioryos Asprobounitis" <mavrothal at yahoo.com>
> Date: Thursday, March 31, 2011, 3:34 AM
> On Thursday 31 March 2011 08:45:24
> Yioryos Asprobounitis wrote:
> > I was wondering if it makes any sense when making an
> ext fs on an SDcard
> > to try to align the erase block of the card with the
> ext2 group size.
> > eg assuming a card with a 4KB pages and 4MB erase
> blocks, try something
> > like `mkfs.ext3 -b 4096 -g 1024'
...and a last one on this.
apparently you can not have 1024 groop blocks in ext2/3
$ mkfs.ext3 -b 4096 -g 1024 /dev/mmcblk0p1
mke2fs 1.41.12 (17-May-2010)
/dev/mmcblk0p1: Cannot create filesystem with requested number of inodes while setting up superblock
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