On Tue, 17 Sep 2002, Edward Wildgoose wrote:

> Ext 3 is identical to Ext2 with the exception that you add a "hidden"
> journal file.  It would take someone better than me to fully describe
> how to switch from one to the other, but as long as you have a clean
> shutdown you could happily mount an ext3 filesystem as ext2 (the
> otherway round is also possible but you would have to create a journal
> file)

        tune2fs -j <device>

Then change the entry in /etc/fstab to ext3 and remount.

> By the looks of it the Win95 partition is the Extended partition which
> holds partitions C0D0p5 to 8.  Look more closely at the start and end
> blocks...

Disks for PCs can hold a maximum of four "primary" partitions.  If you
want more partitions, the last primary partition is designated "extended"
and is partitioned into additional "logical" partitions.  These appear
just like any other partitions to the OS.  It looks as though the entire
array here is treated as a single disk from the partition perspective.

>
> Ed W
>
> -----Original Message-----
> From: Calbazana, Al [mailto:[EMAIL PROTECTED]]
> Sent: 17 September 2002 13:49
> To: '[EMAIL PROTECTED]'
> Subject: ext2 and ext3 FS
>
>
> I was wondering if there are any problems with having both ext2 and ext3
> filesystems running on the same machine.  I recently repartitioned a server
> under RAID 5 to make extra space on a /usr paritition.  All went well and is
> working properly as far as I can tell.  The partition was previously a ext3
> but is now ext2 (since parted did not handle the creation of ext3).  I
> suppose I could go ahead and create an ext3 outside of parted if there are
> any problems with this config.
>
> Also... After printing the partition table, I noticed that there is a Win95
> Ext'd (LBA) parition?  Not exactly sure what this is!  When installing RH,
> all disks were clean.  Could this be the array hardware?
>
>          Device Boot    Start       End    Blocks   Id  System
> /dev/ida/c0d0p1   *         1         6     24464   83  Linux
> /dev/ida/c0d0p2             7       759   3072240   83  Linux
> /dev/ida/c0d0p3           760      1512   3072240   83  Linux
> /dev/ida/c0d0p4          1513      6530  20473440    f  Win95 Ext'd (LBA)
> /dev/ida/c0d0p5          1513      2265   3072224   83  Linux
> /dev/ida/c0d0p6          2266      2516   1024064   82  Linux swap
> /dev/ida/c0d0p7          2517      2767   1024064   83  Linux
> /dev/ida/c0d0p8          2768      6530  15353024   83  Linux
>
>
> Thanks,
>
> Al
>
>
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-- 
                Matthew Saltzman

Clemson University Math Sciences
[EMAIL PROTECTED]
http://www.math.clemson.edu/~mjs



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