moving /var and /home to a new partition

moving /var and /home to a new partition

[Raul A. Gallegos]

Hi.  I have FC3 installed and currently use the following on one hdd:

/hda1 swap
/hda2 /
/hda3 /usr/local
/hda4 /home

I did this because at time of install I only had one drive.  Now I will be 
installing a second drive for /home only.  So what I want to do is move 
/home to /hdc1 and then move /var to home's current partition /hda4.

I boot into single user mode first and edit fstab.

I know how to edit /etc/fstab but my question is what parameters I should 
give mv when moving the directories.

I figured I could temporarily mount /hdc1 as /newhome then:

cd /home
mv * /newhome

Now I can umount /newhome

Now for /var I could do:

cd /var
mv * /home

So when I reboot all the /var files will be in /home's old partition /hda4 
and the new /home will be on /hdc1.

What I'm worried about is preserving all permissions, ownerships, etc.

Does this all look right?

Re: moving /var and /home to a new partition

[Janina Sajka]

One of the drawbacks of the mv command is permissions and ownership.
Instead, you might want to use rsync which will allow you to preserve
those with the -p switch.

Also, rsync is safer--in case something happens during the big job.

Once moved, you can just rm -rf.

Raul A. Gallegos writes:
> Hi.  I have FC3 installed and currently use the following on one hdd:
> 
> /hda1 swap
> /hda2 /
> /hda3 /usr/local
> /hda4 /home
> 
> I did this because at time of install I only had one drive.  Now I will be 
> installing a second drive for /home only.  So what I want to do is move 
> /home to /hdc1 and then move /var to home's current partition /hda4.
> 
> I boot into single user mode first and edit fstab.
> 
> I know how to edit /etc/fstab but my question is what parameters I should 
> give mv when moving the directories.
> 
> I figured I could temporarily mount /hdc1 as /newhome then:
> 
> cd /home
> mv * /newhome
> 
> Now I can umount /newhome
> 
> Now for /var I could do:
> 
> cd /var
> mv * /home
> 
> So when I reboot all the /var files will be in /home's old partition /hda4 
> and the new /home will be on /hdc1.
> 
> What I'm worried about is preserving all permissions, ownerships, etc.
> 
> Does this all look right?
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup

-- 

Janina Sajka				Phone: +1.202.494.7040
Partner, Capital Accessibility LLC	http://www.CapitalAccessibility.Com

Chair, Accessibility Workgroup		Free Standards Group (FSG)
janina@freestandards.org		http://a11y.org

If Linux can't solve your computing problem, you need a different problem.

Re: moving /var and /home to a new partition

[Raul A. Gallegos]

Hi Ganina and others;

I ended up doing a command like this:

mount /dev/hda4 /mnt
cd /var
rsync -a * /mnt

>From reading the man page on rsync it seems that using the -a parameter is 
like using recursive, simlinks, preserve owner, group, device.

Took some reading on using labels in fstab but I think I got it right.  I 
just don't know where to make the needed modifications so that I don't edit 
fstab directly to add the new /var partition.

RE: moving /var and /home to a new partition

[Steve Dawes]

Adding the new mount point to fstab is quite easy. What I do is:
1. mount the new partitions
2. make sure it is working the way you want it too.
3. read /etc/mtab and look for the entry related to the new mount partition.
4. copy the related entry from mtab into fstab.

Note, I do not type the entry into fstab, I read the entry in using with my
editor to avoid any chance of mistyping it.


Steve

Steve Dawes
Calgary Canada.


-----Original Message-----
From: speakup-bounces@braille.uwo.ca
[mailto:speakup-bounces@braille.uwo.ca]On Behalf Of Raul A. Gallegos
Sent: Wednesday, March 30, 2005 9:44 PM
To: Speakup is a screen review system for Linux.
Subject: Re: moving /var and /home to a new partition


Hi Ganina and others;

I ended up doing a command like this:

mount /dev/hda4 /mnt
cd /var
rsync -a * /mnt

>From reading the man page on rsync it seems that using the -a parameter is
like using recursive, simlinks, preserve owner, group, device.

Took some reading on using labels in fstab but I think I got it right.  I
just don't know where to make the needed modifications so that I don't edit
fstab directly to add the new /var partition.


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Re: moving /var and /home to a new partition

[Janina Sajka]

You can just add it, something like:

/dev/sda4 /var ext3 rw                  0       2

Adjust for your own partition, of course.

And, you do know fstab has its own man page, apart from the mount man
page, right?


Raul A. Gallegos writes:
> Hi Ganina and others;
> 
> I ended up doing a command like this:
> 
> mount /dev/hda4 /mnt
> cd /var
> rsync -a * /mnt
> 
> >From reading the man page on rsync it seems that using the -a parameter is 
> like using recursive, simlinks, preserve owner, group, device.
> 
> Took some reading on using labels in fstab but I think I got it right.  I 
> just don't know where to make the needed modifications so that I don't edit 
> fstab directly to add the new /var partition.
> 
> 
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup

-- 

Janina Sajka				Phone: +1.202.494.7040
Partner, Capital Accessibility LLC	http://www.CapitalAccessibility.Com

Chair, Accessibility Workgroup		Free Standards Group (FSG)
janina@freestandards.org		http://a11y.org

If Linux can't solve your computing problem, you need a different problem.

Re: moving /var and /home to a new partition

[Raul A. Gallegos]

Yep, gotit working.  It just seemed like FC3 used fstab-sync for all fstab 
related mounts.  That is what was throwing me off.  I just created label for 
/dev/hdc1 and called it /home and put that information in fstab.  Did the 
same for /var where /home used to be and all went well.  rsync -a from old 
var into new var went well and everything seems to be working fine now.

I just need to read up on how FC3 handles packages and the like.  I don't 
like sendmail and would rather use exim but see both are installed with 
sendmail being used.

Re: moving /var and /home to a new partition

[Joseph C. Lininger]

Hi,
mv automatically preserves all owner, group, and permition information.
What you want to do should work just fine.

Equal causes can produce very unequal effects.
Joseph C. Lininger
jbahm@pcdesk.net
Verification: 5eab38a77ac40416e075be8f50607ff7

And so it came to pass that on Wed, 30 Mar 2005, Raul A. Gallegos said

> Hi.  I have FC3 installed and currently use the following on one hdd:
>
> /hda1 swap
> /hda2 /
> /hda3 /usr/local
> /hda4 /home
>
> I did this because at time of install I only had one drive.  Now I
will be
> installing a second drive for /home only.  So what I want to do is
move /home
> to /hdc1 and then move /var to home's current partition /hda4.
>
> I boot into single user mode first and edit fstab.
>
> I know how to edit /etc/fstab but my question is what parameters I
should
> give mv when moving the directories.
>
> I figured I could temporarily mount /hdc1 as /newhome then:
>
> cd /home
> mv * /newhome
>
> Now I can umount /newhome
>
> Now for /var I could do:
>
> cd /var
> mv * /home
>
> So when I reboot all the /var files will be in /home's old partition
/hda4
> and the new /home will be on /hdc1.
>
> What I'm worried about is preserving all permissions, ownerships, etc.
>
> Does this all look right?
>
>
> _______________________________________________
> Speakup mailing list
> Speakup@braille.uwo.ca
> http://speech.braille.uwo.ca/mailman/listinfo/speakup
>