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41 lines
1.3 KiB
OCaml
41 lines
1.3 KiB
OCaml
(* guestfs-inspection
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* Copyright (C) 2009-2017 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*)
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open Std_utils
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open Utils
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let rec vfs_type { Mountable.m_device = device } =
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get_blkid_tag device "TYPE"
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and get_blkid_tag device tag =
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let r, out, err =
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commandr "blkid"
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[(* Adding -c option kills all caching, even on RHEL 5. *)
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"-c"; "/dev/null";
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"-o"; "value"; "-s"; tag; device] in
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match r with
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| 0 -> (* success *)
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String.chomp out
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| 2 -> (* means tag not found, we return "" *)
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""
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| _ ->
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failwithf "blkid: %s: %s: %s" device tag err
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