[mythtv-users] Need advice for preserving LVM partitions during FC7 installation

Larry K lunchtimelarry at gmail.com
Tue Sep 18 00:43:11 UTC 2007


Thanks.  I was just making sure I didn't do something silly and wipe or
format a partition I wanted to keep.  The installer gave me the choice to
either format or not.  I had forgotten about that.

On 9/14/07, Joseph Benavidez <hasuf at pobox.com> wrote:
>
>
>
> On 9/14/07, Larry K <lunchtimelarry at gmail.com> wrote:
> >
> > I have an FC3 box that I am about to reinstall with FC7 so that I can
> > upgrade myth and get past this zap2it problem.  Anyway,  I've backed up all
> > my configuration files, but I have too many recordings on an LVM setup to
> > make this kind of backup feasible with existing hardware.  I am running a
> > two drive LVM with about 400GB of recording space.
> >
> > Is it possible to only destroy the root, boot, and swap partitions when
> > I run the FC7 install and therefore preserve the partitions (/dev/hda4 and
> > /dev/hdb1) that are participating in the LVM volume?  My thought was that
> > post-install, I could restore the LVM config file from backup to bring the
> > LVM configuration back to status quo.
> >
> > Here is my fdisk output:
> >
> > Disk /dev/hda: 163.9 GB, 163928604672 bytes
> > 255 heads, 63 sectors/track, 19929 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >    Device Boot      Start         End      Blocks   Id  System
> > /dev/hda1   *           1          13      104391   83
> > Linux              (boot)
> > /dev/hda2              14        1288    10241437+  83  Linux
> > (root)
> > /dev/hda3            1289        1353      522112+  82  Linux swap
> > /dev/hda4            1354       19929   149211720   8e  Linux LVM
> >
> > Disk /dev/hdb: 300.0 GB, 300069052416 bytes
> > 255 heads, 63 sectors/track, 36481 cylinders
> > Units = cylinders of 16065 * 512 = 8225280 bytes
> >
> >    Device Boot      Start         End      Blocks   Id  System
> > /dev/hdb1               1       36481   293033601   8e  Linux LVM
> >
> > I am not sure if what I am thinking about doing is possible, and if so,
> > what partitioning strategy to choose during installation to preserve my LVM
> > partitions.  I would think I need to select manual partitioning, but after
> > that I am not sure what choices to make.   If automatic partitioning is an
> > option, I am not sure what defines a Linux partition, since I can choose to
> > only destroy those partitions during installation.  Are my LVM partitions
> > considered to be "Linux" partitions?
> >
> > Thanks for any guidance from myth-land...
> >
> > Larry
>
>
>
> Hi Larry,
>
> It goes pretty much how you describe it... Sounds like your existing
> partitions are sound... throw away the idea of doing automatic partitioning
> (you want to be in charge, here.)
>
> When you boot up the F7 install disk... after you choose the language,
> etc, and it gets to the part where you partition the disk, choose the option
> where you manually partition. From there, anaconda should give you a view of
> your disks, AND, along with your non-LVM partitions, it should recognize
> your LVM partition.
>
> Now, you mentioned you will re-install (as opposed to upgrade), so you
> know the ramifications of having to re-set up your repos, re-yum-installing
> your favorite programs along with mythtv-suite, restoring pertinent /etc
> files, etc etc.
>
> So back to the partitioning tool, I you can reformat your /boot and /
> partitions (re-designating their respective mount points). You will want to
> also select your LVM logical volume and restore its former mount point
> (obviously, you won't be reformatting that guy.)
>
> Anyway, that's all from memory. (I recently upgraded my backend to F7).
> Hope that helps.
>
> j.joseph
>
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