Qrux wrote:
> The instructions on the svn LVM2 page could use a bit of updating.
>
> The package isn't usable (at least according to docs) without certain
> options.
I've certainly been able to create, format, and mount an lvm partition
with the current commands:
# pvcreate /dev/sdb5
Writing physical volume data to disk "/dev/sdb5"
Physical volume "/dev/sdb5" successfully created
# vgcreate lfstest /dev/sdb5
Volume group "lfstest" successfully created
# lvcreate --name lvm1 --size 40G lfstest
Logical volume "lvm1" created
# mkfs -t ext4 /dev/lfstest/lvm1
# mount /dev/lfstest/lvm1 /mnt/test
# df
Filesystem Size Used Avail Use% Mounted on
...
/dev/mapper/lfstest-lvm1 40G 176M 38G 1% /mnt/test
> They're on the page, but they're not in the build commands.
> Also, there's some nice info in the docs subdir of the tarball that
> don't get installed.
>
> I propose this update to the LVM2 page (including a version bump to
> LVM2.2.09.90):
>
> ====
> ./configure --prefix=/usr --enable-pkgconfig --enable-dmeventd --enable-cmdlib
When you do that, the only executable added is dmeventd, but the
executables do link to a new library. The description of dmeventd is
"the event monitoring daemon for device-mapper devices. Library plugins
can register and carry out actions triggered when particular events occur."
I have no idea what that means or how it would be used. The fact that
it's a daemon appears to mean that a boot script needs to be written to
control it. I'm reluctant to do that unless I know what it does.
If we have a writeup for a separate page "Using LVM" that explains it,
I'd think the change would be appropriate.
> LVM2_DOC_DIR=/usr/share/doc/lvm2-2.02.90
> install -d ${LVM2_DOC_DIR}
> cp -va doc/* ${LVM2_DOC_DIR}
> rm -vf ${LVM2_DOC_DIR}/Makefile{,.in}
I'd think this would be better for the last two lines:
cp -v doc/{*.txt,example*} ${LVM2_DOC_DIR}
Although in the book, for consistency, I'd spell out
/usr/share/doc/lvm2-2.02.90 in both the install and cp commands.
-- Bruce
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