Re: Switching between 2 file systems.

[Bob McClure Jr <robertmcclure earthlink net>]

When you copy a (formerly root) partition to another, don't forget to
edit the etc/fstab in the new partition to reflect how life will be
when the new partition becomes the root partition.

That is a technique I use when making a major-rev upgrade (as from 6.2
to 7.0).  I copy the existing root partition to the new partition,
edit (say) /rh70/etc/fstab to reflect life as it will be, add a new
stanza to /etc/lilo.conf, and run lilo.  Then I boot the new partition
to verify that it is workable, then reboot and upgrade the _new_
partition, leaving the old one fully functional in case the upgrade is
less than workable.

On Sun, Mar 04, 2001 at 12:20:27AM -0500, Fu-Dong Chiou wrote:
> 
> Bob McClure Jr wrote:
> > 
> > Umm, ok.  Short checklist:
> > - Both partitions below the 1024 cylinder boundary?
> Seems so.
> > - You did run "lilo" with no complaints?  To the master boot record?
> Seems so.
> > - How far does the boot of the disagreeable one get?
> I will check it later.  Somewhere in the middle.
> > 
> > You may need to post the relevant lilo.conf and the output of "fdisk
> > -l /dev/hda".  May we assume you are running lilo from the running
> > RH6.0 partition (/dev/hda2) to dual-boot either of the two?
> > 
> 
> No.  I installed RH6.2 on /dev/hda1, and then copied an entire partition of 
> another HD onto /dev/hda2 (just like I did on the other laptop).  So, I ran 
> lilo from RH6.2.  Theoretically, the situation is similar.  THe only 
> difference is, on my laptop, there is only one primary partition (hence, 
> hda1, hda5, hda6, ...), but I have 4 primary partitions on this desktop.  
> Not sure if this is causing the trouble. Thanks!

No, four primaries cannot be the problem.

> Chip
> 
> bash-2.04# more /etc/lilo.conf 
> boot = /dev/hda
> timeout = 30
> linear
> prompt
>   default = cle
>   vga = normal
>   read-only
> map=/boot/map
> install=/boot/boot.b
> image = /boot/vmlinuz-2.2.17-4CLE
>   label = cle
>   root = /dev/hda1
> image = /chopin/boot/vmlinuz
>   label = rh
>   root = /dev/hda2
> 
> 
> Disk /dev/hda: 240 heads, 63 sectors, 1292 cylinders
> Units = cylinders of 15120 * 512 bytes
> 
>    Device Boot    Start       End    Blocks   Id  System
> /dev/hda1   *         1       447   3379288+  83  Linux
> /dev/hda2   *       448       894   3379320   83  Linux
> /dev/hda3           895      1276   2887920   83  Linux
> /dev/hda4          1277      1292    120960   82  Linux swap
> 
> > You know, I just looked back at your previous problem and realized
> > that one of the partitions to be booted was a logical partition
> > (/dev/hda5).  I thought you could not boot a logical partition.  But
> > it works, huh?  Guess I'm getting senile in my old age.  Maybe that's
> > true only of Windoze?  (I'm sure someone will set me straight.)
> 
> Best wishes,
> Chip 

Cheers,
-- 
Bob McClure, Jr.            | In theory,
Bobcat Open Systems, Inc.   | what works in theory will work in practice.
robertmcclure earthlink net | In practice, it doesn't.