From 6280ac9b987c14f89749b4b4fdfec5a647567432 Mon Sep 17 00:00:00 2001 From: Richard Jones&lt;rjones(a)redhat.com&gt; Date: Fri, 30 Jul 2010 16:32:35 +0100 Subject: [PATCH] New API: is-lv: check if a block device is a logical volume (RHBZ#619793) This adds a new API, guestfs_is_lv (g, device), which returns true iff the named device is an LVM2 logical volume. A sample guestfish session: > ><fs> lvs /dev/vg_f13x64/lv_root /dev/vg_f13x64/lv_swap > ><fs> list-devices /dev/vda > ><fs> list-partitions /dev/vda1 /dev/vda2 > ><fs> is-lv /dev/vg_f13x64/lv_root true > ><fs> is-lv /dev/vg_f13x64/lv_swap true > ><fs> is-lv /dev/vda false > ><fs> is-lv /dev/vda1 false > ><fs> is-lv /dev/vda2 false --- daemon/lvm.c | 47 +++++++++++++++++++++++++++++++++++++++++++++++ src/MAX_PROC_NR | 2 +- src/generator.ml | 10 ++++++++++ 3 files changed, 58 insertions(+), 1 deletions(-) diff --git a/src/MAX_PROC_NR b/src/MAX_PROC_NR index 175b6c5..10b0c0d 100644 --- a/src/MAX_PROC_NR +++ b/src/MAX_PROC_NR @@ -1 +1 @@ -263 +264 diff --git a/src/generator.ml b/src/generator.ml index d537945..20f7ac0 100755 --- a/src/generator.ml +++ b/src/generator.ml @@ -4953,6 +4953,16 @@ This command deletes the key in key slot C<keyslot> from the encrypted LUKS device C<device>. C<key> must be one of the I<other> keys."); + ("is_lv", (RBool "lvflag", [Device "device"]), 264, [Optional "lvm2"], + [InitBasicFSonLVM, IfAvailable "lvm2", TestOutputTrue ( + [["is_lv"; "/dev/VG/LV"]]);

+ InitBasicFSonLVM, IfAvailable "lvm2", TestOutputFalse ( + [["is_lv"; "/dev/sda1"]])], + "test if device is a logical volume", + "\ +This command tests whether C<device> is a logical volume, and +returns true iff this is the case."); + ]