<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
<br>
<blockquote cite="mid:20100326154718.GA62804@l04.local" type="cite">
<blockquote type="cite">
<pre wrap="">I found another issue on the LVM resize option : it always preserves
the partition. This is not appropriate, as when resizing /usr like I
do one is expecting the partition to be cleaned before the new
installation. Also, setup-storage fails if the partition does not
already exist :
Can't preserve /dev/vg0/usr because it does not exist
IMHO the resize option should behave as follows:
if (the volume exists) {
resize the volume
if (a preserve* flag is also set for this volume) {
resize the filesystem
} else {
create a new filesystem
}
} else {
ignore the resize flag and create a new volume + filesystem
}
</pre>
</blockquote>
<pre wrap=""><!---->
I believe that it's mostly a matter of naming and/or using the options somewhat
differently:
- If you don't want to preserve data, there is no reason to use resize or
preserve. Just specify the size and you get what you want.
- If you want to preserve data but need to change sizes, you use "resize".
- If you really want setup-storage not to touch some volume, use one of the
preserve options. Where preserve is one of preserve_always, preserve_reinstall
or preserve_lazy. The latter seems to be still buggy, as you noted, that has
to be fixed.
I'm not sure whether this was a problem of missing documentation/clarification
or rather a real wish to alter behaviour.
</pre>
</blockquote>
Right, remove the existing volume and create a new one is just as good
as resizing. I have just missed the easier way to do it.<br>
<br>
The only remaining question is what to do if the volume to be resized
does not exist : setup-storage may either complain as it currently
does, or ignore the resize flag. As you say it's mainly a documentation
issue. My feeling is that the volume line (IE I want an 8GiB volume)
has a higher weight than the resize option, but although I represent
100% of the users by now I may be wrong.<br>
<br>
-- <br>
Nicolas<br>
<br>
<br>
<br>
</body>
</html>