On 02/09/2014 05:04 PM, Joe wrote:
On Sun, 09 Feb 2014 16:23:27 -0500
Doug <dmcgarr...@optonline.net> wrote:
I don't understand LVM, but I tried to install some distro just to
learn about it, and it would only install using LVM, which meant
that it would only install on the entire hard drive. No partitions,
no Windows, no nothing. I installed it on a second small h/d, and
then I found out that nothing on it was accessible from a normal
Linux installed on a normal file system on sda. If LVM becomes
the Linux standard, I will have to find a different OS!
Sounds like a bee-in-the-bonnet distro. Normally, LVM volumes map to
partitions, and as long as you have the LVM packages installed on any
Linux system, it will be able to read LVM systems.
As you see here, my main workstation has an LVM partition and a normal
one. I have a bit of a bee in my bonnet about grub, having had several
run-ins with it on various machines, and I trust it about as far as I
can throw the average office building. Hence the separate /boot
partition. Grub does understand LVM natively, but if one day it decides
to play dumb, it is more accessible on its own partition, and can be
more easily held to account with the software equivalent of an axe.
Device Boot Start End Blocks Id System
/dev/sda1 * 63 979964 489951 83 Linux
/dev/sda2 979965 625137344 312078690 8e Linux LVM
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/sda1 489900 79644 410256 17% /boot
/dev/mapper/first-root 4882276 1308524 3573752 27% /
/dev/mapper/first-backup 97649748 4991160 92658588 6% /backup
/dev/mapper/first-home 52427196 27603080 24824116 53% /home
/dev/mapper/first-tmp 4882276 32860 4849416 1% /tmp
/dev/mapper/first-usr 19529128 8819648 10709480 46% /usr
/dev/mapper/first-var 9764560 1261076 8503484 13% /var
In the context of the actual topic here, I've already said that I don't
think multiple partitions are all that useful on a workstation, so I'm
not necessarily advocating this particular scheme.
It was not a weird distro. I don't remember whether it was
RedHat, or SUSE or Fedora, but I'm pretty sure it was one of them.
I found that there is something called lvm2 in my repos, and I
installed it; I don't remember if I still have the other distro on
the second drive or if I blew it away (probable!). But it did
*not* respect available partitions--it wanted the whole
verdammt drive!
I usually use a distro that uses classic grub, and I've never had
a problem with it. I can even boot other distros installed on the
drive from grub.
I remember seeing you or someone writing that multiple partitions
are not useful. I respectfully disagree. Unless someone is storing a
humongous amount of files on their system, there should be lots of
space available on a 1TB drive for Windows and two or three other
systems. (After losing a slew of music downloads after a drive failure,
I no longer store anything like that only on a drive; I copy the files
to a CD. Unfortunately, all those downloads were from the
free system that is no longer available, and so most of the songs
aren't either.)
--doug
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