On 2/24/06, DJA <[EMAIL PROTECTED]> wrote:
> RBW wrote:
> > I'm looking at my options for implementing LVM on my laptop which has a
> > @40GB HD. At the time I originally partitioned the drive 3 years ago I
> > had for the first time not made the usual multiple partitions one would
> > make such as found in this article
> ...
> > What I do have is the following:
> >
> > $ fdisk -l
> > Disk /dev/hda: 40.0 GB, 40007761920 bytes
> > 16 heads, 63 sectors/track, 77520 cylinders
> > Units = cylinders of 1008 * 512 = 516096 bytes
> >
> > Device Boot Start End Blocks Id System
> > /dev/hda1 * 1 25372 12787456+ 83 Linux
> > /dev/hda2 25373 77520 26282340 5 Extended
> > /dev/hda5 25373 27907 1277136 82 Linux swap /
> > Solaris
> > /dev/hda6 27907 77520 25005141 83 Linux
> >
> > $ df
> > Filesystem 1K-blocks Used Available Use% Mounted on
> > /dev/hda1 12386752 7827676 3919704 67% /
> > /dev/shm 355048 0 355048 0% /dev/shm
> > /dev/hda6 24612312 19173028 5439284 78% /home
> >
> > I will have need to stretch into the nearly 4GB that is available on "/"
> > which is why this issue has come up. I can symlink over on "/" to what I
> > need to work on but I also want to investigate how I can get from where
> > I am to LVM.
> >
> > The biggest thing I notice so far from the docs is that I don't
> > necessarily want to have /root inside the LVM structure with a boot
> > loader ( http://www.tldp.org/HOWTO/LVM-HOWTO/benefitsoflvmsmall.html ).
> > This may be a deal breaker from what I see so far...
> ...
> >
> > So I am looking for any hints or tips that others may have experienced
> > or considered.
> >
> > TIA,
> > RBW
>
> I have a 100 GB drive in my laptop. It's dual-boot with XP Pro getting
> about 30 GB, and Fedora Core 4 getting the rest. I realize this is
> roughly 1.5 times the capacity you have but it's still representative of
> what kind of proportions I'd probably use with only 40 GB for Linux.
>
> Leaving out any real philosophical or emotional reasons motives, her is
> how my Linux partitions are set up (from df):
>
> Filesystem 1K-blocks Used Available Use% Mounted on
> /dev/hda5 9694844 8114124 1080300 89% /
> /dev/hda2 69995 51842 14539 79% /boot
> /dev/mapper/VolGroup00-LV_home
> 20314748 2374068 16892104 13% /home
> /dev/mapper/VolGroup00-LV_tmp
> 4062912 41056 3812144 2% /tmp
> /dev/mapper/VolGroup00-LV_usrlocal
> 24916624 257476 23373004 2% /usr/local
> /dev/mapper/VolGroup00-LV_var
> 4062912 539840 3313360 15% /var
>
> The swap partition is ~1 GB (for 512 MB RAM), which is probably too big
> for what I use the laptop.
>
> Also this is a full install of FC4. (i.e. the "Install everything"
> option). Given the above usage after a year's use, it looks like
> /usr/local might someday give up some room for /home, although I'll
> probably wish I'd put / into the LV also.
I guess it's time for my observations about LVM stuff.
/boot can't be in an LV because Grub doesn't understand that.
/ shouldn't be in an LV because if you ever want to resize it, you can
only do that if it is not mounted. And running with / unmounted takes
some extra tricks. Namely, booting a distribution disk in rescue
mode. Last time I fought with this, Knoppix could not read LV's.
The default naive installation of Fedora Core puts all of the disk
into LVM except for a 100MB /boot partition.
carl
--
carl lowenstein marine physical lab u.c. san diego
[EMAIL PROTECTED]
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