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lvconvert: Improve error message when no -m.

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This commit is contained in:
Alasdair G Kergon 2016-08-03 23:31:50 +01:00
parent be497175e0
commit 5c3141a8b9
1 changed files with 6 additions and 1 deletions
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7
tools/lvconvert.c
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@ -1853,7 +1853,12 @@ static int _lvconvert_raid(struct logical_volume *lv, struct lvconvert_params *l
}
if (seg_is_linear(seg) && !lp->merge_mirror && !lp->mirrors_supplied) {
log_error("Raid conversions require -m/--mirrors.");
if (_raid0_type_requested(lp->type_str))
log_error("Linear LV %s cannot be converted to %s.",
display_lvname(lv), lp->type_str);
else
log_error("Raid conversions of LV %s require -m/--mirrors.",
display_lvname(lv));
goto try_new_takeover_or_reshape;
}