Re: [MiNT] file system check

[josephus <dogbird@earthlink.net>]

Andreas Schwab wrote:
> Ingo Schmidt <ich@der-ingo.de> writes:
>
>
> > I have a question on fsck.ext2:
> >
> > How does it know if the filesystem is clean or not?
> >
> > I guess htere is some kind of "clean flag".
>
>
> Right (a flag in the super block).
>
>
> > Who sets this flag to "clean" and when does this flag get set?
>
>
> On Linux the kernel clears the dirty flag on mount and sets it again on
> unmount.
>
>
> > What happens at a "sync"? Is the filesystem marked as "clean" after a
> > sync or not?
>
>
> Only an unmounted filesystem is considered clean.
>
> Andreas.
I have a 160 mxxtor disk running Linux. The only problem is this 
mechanism.  The disk requires a 8meg cache hit.  As a result I cannot 
ever boot a clean disk.  My system boots and generally works. but I 
cannot boot RO, the system will NEVER boot, it just reboots.  E2FSCK 
will reports strange errors in the FILE SYSTEM>   Sync will not flush 
this giant buffer.

So folks running large disks need to know that the on disk cache is much 
larger than any sync will process.
                           josephus


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