File-system Ext2 or Ext3??

File-system Ext2 or Ext3??

[Staci]

Hi!

I have some confusion.

I set up journals on my ext2 FSes (there's two, / and
/home) with tune2fs -j, to make them ext3.  But I
still get forced fscks at startup, and they still find
lots of problems I thought would be eliminated with
ext3.
So I look at cfdisk for /dev/hdb, and it says those
partitions are ext2.  Is my cfdisk too old?  Did I do
something wrong?  Both my mtab and fstab have them
labeled (correctly?) as ext3.  

Anyone know what's going on here?

Thanks...
sl

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Re: File-system Ext2 or Ext3??

[Edgar Alwers]

On Saturday 11 May 2002 22:46, Staci wrote:
> I still get forced fscks at startup, and they still find
> lots of problems I thought would be eliminated with
> ext3.

You need to be more precise. What lots of problems is fsck finding ? Please 
include the exact wording.
And did you have the problems before changing the FS ? ( " I thought would be 
eliminated with ext3" )
If you have had an unclean shutdown ( power out for instance ), FS will get 
checked on next bootup. You may get messages like "unexpected inconsistency; 
run fsck manually "
You also may need the newest version of e2fsprogs ( > 1.27 )
Have you checked that your kernel supports ext3 ( normally > 2.4.18, but not 
always the stock kernels ). 

> So I look at cfdisk for /dev/hdb, and it says those
> partitions are ext2. 

It happens in my system also, which is clean ext3. Perhaps cfdisk is not in 
the last shape !

> Is my cfdisk too old?  Did I do
> something wrong?  Both my mtab and fstab have them
> labeled (correctly?) as ext3.

Include also /etc/fstab

Regards,
Edgar

-- 
-----------------------------------
Dr.-Ing. Edgar Alwers
Mailto:edgaralwers@gmx.de

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Re: File-system Ext2 or Ext3??

[Steven Smith]

[-- Attachment #1: Type: text/plain, Size: 919 bytes --]

> I set up journals on my ext2 FSes (there's two, / and
> /home) with tune2fs -j, to make them ext3.  But I
> still get forced fscks at startup,
How many? ext3 should be fscked every 20 or so times it gets mounted,
to find any errors which crept in from somewhere.

If it's more than that, check you've got a recent fsck. ext3 support
was added in (I think) 1.19.

> So I look at cfdisk for /dev/hdb, and it says those
> partitions are ext2.  Is my cfdisk too old?  Did I do
> something wrong?
This is a maybe-bug in fdisk. Partition table entries have a numerical
type id, which, for Linux native partitions, is 83 hex. Unfortunately,
``Linux native'' isn't terribly well defined, with ext, ext2, ext3,
reiser, and several other having a claim. fdisk assumes ext2 is the One
True Linux Filesystem, so gives the wrong answer if something else is used.
It should probably just say Linux.

Steven Smith,
sos22@cam.ac.uk.

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Re: File-system Ext2 or Ext3??

[Dan Milne]

Did you change the entries in /etc/fstab from ext2 to ext3 ?

Steven Smith wrote:

>>I set up journals on my ext2 FSes (there's two, / and
>>/home) with tune2fs -j, to make them ext3.  But I
>>still get forced fscks at startup,
>>    
>>
>How many? ext3 should be fscked every 20 or so times it gets mounted,
>to find any errors which crept in from somewhere.
>
>If it's more than that, check you've got a recent fsck. ext3 support
>was added in (I think) 1.19.
>
>  
>
>>So I look at cfdisk for /dev/hdb, and it says those
>>partitions are ext2.  Is my cfdisk too old?  Did I do
>>something wrong?
>>    
>>
>This is a maybe-bug in fdisk. Partition table entries have a numerical
>type id, which, for Linux native partitions, is 83 hex. Unfortunately,
>``Linux native'' isn't terribly well defined, with ext, ext2, ext3,
>reiser, and several other having a claim. fdisk assumes ext2 is the One
>True Linux Filesystem, so gives the wrong answer if something else is used.
>It should probably just say Linux.
>
>Steven Smith,
>sos22@cam.ac.uk.
>  
>



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Re: File-system Ext2 or Ext3??

[Staci]

--- Steven Smith <sos22@cam.ac.uk> wrote:
> > still get forced fscks at startup,
> How many? ext3 should be fscked every 20 or so times
> it gets mounted,
> to find any errors which crept in from somewhere.

20 boots at about average a week per boot, I shouldn't
be seeing a fsck for 5 months. :(
Instead I'm getting them more like every third bootup.

> If it's more than that, check you've got a recent
> fsck. ext3 support
> was added in (I think) 1.19.

Got 1.22...nothing of mine is REALLY old cuz it came
from Slack8 cd.

> ``Linux native'' isn't terribly well defined, 
YES! I'd noticed that before...how unhelpful is THAT,
of course it's Linux Native, duh it's /, it HAS to be
Linux Native to be mounted at startup!

with> ext, ext2, ext3,
> reiser, and several other having a claim. fdisk
> assumes ext2 is the One
> True Linux Filesystem, so gives the wrong answer if
> something else is used.
> It should probably just say Linux.

Yes...in a nutshell that sounds like I thought it
might be, oversimplication of fs.

There's so many apps that need to be upgraded and
rewritten....

Thanks...
sl

PS for me at least, please just reply to the list
only, I get unnecessary doubles when you reply to both
the list and me!



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Re: File-system Ext2 or Ext3??

[Steven Smith]

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> > > still get forced fscks at startup,
> > How many? ext3 should be fscked every 20 or so times
> > it gets mounted,
> > to find any errors which crept in from somewhere.
> 20 boots at about average a week per boot, I shouldn't
> be seeing a fsck for 5 months. :(
> Instead I'm getting them more like every third bootup.
Does fsck say why it's running? There will usually be messages saying
(from memory) ``not cleanly unmounted'' or ``has been mounted ... times''
just before fsck proper starts.

> > ``Linux native'' isn't terribly well defined, 
> YES! I'd noticed that before...how unhelpful is THAT,
> of course it's Linux Native, duh it's /, it HAS to be
> Linux Native to be mounted at startup!
It might be UMSDOS...

> > fdisk assumes ext2 is the One
> > True Linux Filesystem, so gives the wrong answer if
> > something else is used.
> > It should probably just say Linux.
> Yes...in a nutshell that sounds like I thought it
> might be, oversimplication of fs.
> There's so many apps that need to be upgraded and
> rewritten....
True, but it's far easier to just ignore the filesystem type field.
It's only supposed to be a hint, anyway.

Steven Smith,
sos22@cam.ac.uk.

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