Re: [Sheflug] Migrating from ext2 to ext3 on Debian Potato

[John M Cooper <xxxxx [at] xxxxxxxxxxxxxxxxxxxxxxxx>]

On Wed, 2002-05-22 at 13:06, José Luis Gómez Dans wrote:
> Hi all,
>     I guess this has been plastered all over the place before, but I
> can't find the whole lot of information. I have a system running
> potato, and because of power cuts and plug testing, the system goes
> down. Usually, when it re-boots, it asks for the superuser privs to
> run fsck, and that is annoying (namely, because I need to carry a
> heavy monitor around, and then perch off the filing cabinet where the
> computer is. It is also covered with leaves from a near-by plant). So
> I thought I'd chuck in ext3 so if it needs to be rebooted, it will go
> back up automatically.
> 
A good enough reason although a UPS may be safer!

>     Before I do any such thing, I did realise that I only have one
> partition (yes, it's a dumb idea, but it goes back a long time, and
> there were good reasons for that at that point in time). So, I
> understand that ext3 is fully compatible with ext2, and there
> shouldn't be any problems, but I might ask again how safe is this.
> 
>     What I have to do is quite simple:
> (i) /sbin/tunefs -j /dev/XXXXX
> (ii) Change the ext2 in /etc/fstab to ext3
> (iii) Install a ext3-aware kernel
> (iv) Reboot
> (v) Bite my nails
> (vi) Be relieved
> 
Thats about it! I am not sure if you can do the tunefs with the partion
mounted rw so you may have to do it at single user level with the rootfs
mounted ro

You may want to add 
tune2fs -i 0 -c 0 /dev/hdxx
but I kinda like the fs to be cheked every 20 mounts or so for my
paranoia!



>     However, my doubts creep in when I consider that the root
> filesystem will be ext3. Do I need to do something to lilo? Will it be
> recognised as ext3 and not ext2? I have compiled a kernel with both
> ext2 and ext3 included (not as modules), but still....
> 
If you have ext3 compile in it should detect that first and mount it I
think. 

Check these pages to be sure

http://www.symonds.net/~rajesh/howto/ext3/index.html

http://www.zip.com.au/~akpm/linux/ext3/ext3-usage.html


john


-- 
John Cooper                     |Phone 0114 223 3052
Your Senior IT Administrator    |Fax   0114 290 9192
Your Communications - Sheffield |email
john.cooper@yourcommunications.co.uk

************************************************************************
Your Communications Ltd
Portland House
Moorfield
Sheffield
S3 8UG

Switchboard number : 0114 290 9090

The information contained in this e-mail is intended only for the
individual to whom it is addressed. It may contain privileged and
confidential information. If you have received this message in error or
there are any problems, please notify the sender immediately and delete
the message from your computer. The unauthorised use, disclosure,
copying or alteration of this message is forbidden. Your Communications
Limited will not be liable for direct, special, indirect or
consequential damage as a result of any virus being passed on, or
arising from alteration of the contents of this message by a third
party.

Your Communications Limited (England and Wales No. 3842309) registered
office Dawson House, Great Sankey, Warrington, WA5 3LW


************************************************************************
Disclaimer end.



___________________________________________________________________

Sheffield Linux User's Group -
http://www.sheflug.co.uk/mailfaq.html

  GNU the choice of a complete generation.