On 09/21/2014 03:18 AM, Tom H wrote:
On Sat, Sep 20, 2014 at 9:41 PM, Joe Zeff <joe@xxxxxxx> 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."
So, if super blocks are damaged, then -b MUST be specified since
fsck cannot discern the blocksize from the super block(s) ??
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