Recovering files from ext2/3

[Tom H]

On Sat, Sep 20, 2014 at 9:41 PM, Joe Zeff <joe at zeff.us> wrote:
> On 09/20/2014 06:30 PM, jd1008 wrote:
>>
>> / posted it to the ext3 maling list (turns out they also know ext4)
>> and they admitted about undocumented effects of using the -S
>> option, and that one must NEVER use it unless they know the intrinsics
>> of the FS so well, that the user knows exactly what effects it will
>> have. /
>
> It sounds to me that one of you should go to Bugzilla and file an RFE asking
> that the documentation be updated.

>From the "-S" section of the mkfs.extX man page:

"It is critical to specify the correct filesystem blocksize when using this
option, or there is no chance of recovery."

The "-S" command posted earlier didn't have that - and it's probably
at least part of what uptream means by "know the intrinsics."