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Re: Is it safe to run "tune2fs -j" on a mounted filesystem?



On Thu, Mar 20, 2003 at 06:51:31AM -0500, Bryan J. Smith wrote:
> On Thu, 2003-03-20 at 02:39, Andreas Dilger wrote:
> > Never.  While ext2 and ext3 share an on-disk format, the kernel code
> > is very different.  The above will remount the filesystem as ext2,
> > and it will totally ignore the journal.
> 
> Oh, I meant to remount with this (typo):  
>   mount -t ext3 -o remount,rw /
> 

No, you can't remount from ext2 to ext3 (or vice versa).  You need to
unmount and remount, or in the case of the root filesystem, you'll
have to reboot.

						- Ted





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