Disk Partiotioning

Ow Mun Heng Ow.Mun.Heng at wdc.com
Thu Dec 2 03:31:08 UTC 2004


On Thu, 2004-12-02 at 10:59, Gustavo Seabra wrote:
> C. Linus Hicks wrote:
> 
> >On Wed, 2004-12-01 at 13:28 -0600, Gustavo Seabra wrote:
> >  
> >
> >>C. Linus Hicks wrote:
> >>
> >>    
> >>
> >>>On Wed, 2004-12-01 at 10:19 -0600, Gustavo Seabra wrote:
> >>>
> >>> 
> >>>
> >>>      
> >>>
> >>>>All would work perfectly if it wasn;t for one detail: QTParted doesn't 
> >>>>resize ext3 partitions, as all of my partitions (but swap) are. So, I'm 
> >>>>starting to believe that, if I want more space in root, I'll really have 
> >>>>to reinstall the system.
> >>>>
> >>>So turn off the journal. Read the tune2fs manpage.
> >>>      
> >>>
> >>What do you mean by "turn off the journal"?
> >The only difference between an ext2 filesystem and ext3 is that the ext3
> >has a journal. Turn off the journal and you have an ext2 filesystem. The
> >tune2fs manpage tells you how to do that. If you don't trust that on one
> >of your live filesystems, experiment by creating a new filesystem (you
> >don't have to have a free disk partition to do this, you can do it with
> >a filesystem in a file) and make sure you know what you are doing before
> >doing it for real. After you finish resizing, you can turn the journal
> >back on and convert back to ext3.
> >
> >Note that you can only turn the journal off when the filesystem is not
> >mounted or mounted read-only, so you will have to do that using a rescue
> >CD or some such.
> >
> >
> How do I make a "filesystem in a file" ?
> 
> I also had a couple of problems: I backed up everything in my "/" 
> partition inside /home. Then I tried booting with the System Rescue CD 
> or Knoppix. In the first, I couldn't access any of my permanent 
> partitions.
Are they mounted?? 

check 
$mount 

>  In the second, I could only mount them as "read-only", 
you can remount it read - write
$ mount -o remount,rw /path/to/mount

> so I 
> would not be able to restore the "/" partition after resizing it, or 
> would I? I mean, I must be able to read/write there after I re-create 
> it, don't I? 
> And how am I going to define the mount point as "/" after 
> re-creating it?
I don't follow. (actually I did't follow the thread)

if you're booted into Knoppix or the rescue-cd, just fire up 

vim /mnt/???/etc/fstab

edit the line that says which is your "/" partition to point to the new
place where your "/" resides.


> 
> You see, I still have a lot to learn. I'm starting to believe that this 
> is just too much for my present knowledge, 

Experience is the best teacher, but if you don't start, experience won't
come a-running.

> and maybe I should just 
> "patch" things up with symlinks to somewhere in /home, at least untill 
> it's time to reinstall the whole system again... (I should probably do 
> it in about a year max.)
> 
> -- 
> --
> ----------------------------------
> Gustavo Seabra - Graduate Student
> Chemistry Department
> Kansas State University
> ----------------------------------

--
Ow Mun Heng
Gentoo/Linux on D600 1.4Ghz 
Neuromancer 11:27:11 up 1:38, 6 users, 0.09, 0.15, 0.26 




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