disk space

[Rick Stevens]

karlp at ourldsfamily.com wrote:
>>karlp at ourldsfamily.com wrote:
>>
>>>What, may I ask, is a sane method of moving rh v8.0 from an 8gb disk to
>>>say, a 30gb disk? Ghost? Mount and copy?
>>
>>Partition the new drive, then mount each filesystem and "cp -a" or use
>>ghost.  Either will work.
>>
>>NOTE:  Regardless of how you do it, you will need to install either grub
>>or lilo on the new drive for it to boot.
> 
> 
> I have no particular preference between the two. I use both currently on
> different systems. Do you have a preference and if so, why?

I prefer grub for several reasons:  It's capable of dealing with more
operating systems than lilo can, you don't have to remember to run it if
you tweak the config file and it's a bit more flexible.

>>If you use lilo:
>>
>>	# chroot /newdrive/boot
>>	# lilo
>>	# exit
>>
>>If you use grub:
>>
>>	# grub-install /dev/whatever-the-new-drive-is
> 
> 
> This way, I could keep both drives in the machine so thanks. Do I need to
> change their jumpers so one is a master and the other a slave for them to
> behave correctly?

Well, yes and no.  If you use filesystem labels rather than device names
in your /etc/fstabs or loader configs, you can have issues.  I'd leave
the drives jumpered however you wish but make sure that your boot loader
doesn't use the "root=label=/" stuff, but rather uses "root=/dev/hdxn"
format.  Also make sure you modify each system's /etc/fstab to use the
device names also.  Nothing will confuse things more than having a
"/usr" filesystem label on two drives then specifying "LABEL=/usr" in
the /etc/fstab.  Which "/usr" will you get?  It's unpredictable.

> Oh, and this is a production system (email; web; ssh server). Does that
> change or modify your recommendations?  (and thanks Rick; always good for
> sound advice.)

No, other than the device name versus filesystem label stuff either
would work.  As I said, I prefer grub, although it's not as easy to
boot in single user mode with grub as it is with lilo.
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- Rick Stevens, Senior Systems Engineer     rstevens at vitalstream.com -
- VitalStream, Inc.                       http://www.vitalstream.com -
-                                                                    -
-              Never eat anything larger than your head              -
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