示例#1
0
int
init_basic_fs_on_lvm (guestfs_h *g)
{
  const char *pvs[] = { "/dev/sda1", NULL };

  if (init_partition (g) == -1)
    return -1;

  if (guestfs_pvcreate (g, "/dev/sda1") == -1)
    return -1;

  if (guestfs_vgcreate (g, "VG", (char **) pvs) == -1)
    return -1;

  if (guestfs_lvcreate (g, "LV", "VG", 8) == -1)
    return -1;

  if (guestfs_mkfs (g, "ext2", "/dev/VG/LV") == -1)
    return -1;

  if (guestfs_mount (g, "/dev/VG/LV", "/") == -1)
    return -1;

  return 0;
}
int
main (int argc, char *argv[])
{
    guestfs_h *g;
    struct guestfs_internal_mountable *mountable;
    const char *devices[] = { "/dev/VG/LV", NULL };
    const char *feature[] = { "btrfs", NULL };

    g = guestfs_create ();
    if (g == NULL) {
        perror ("could not create handle");
        exit (EXIT_FAILURE);
    }

    if (guestfs_add_drive_scratch (g, 1024*1024*1024, -1) == -1) {
error:
        guestfs_close (g);
        exit (EXIT_FAILURE);
    }

    if (guestfs_launch (g) == -1) goto error;

    if (!guestfs_feature_available (g, (char **) feature)) {
        printf ("skipping test because btrfs is not available\n");
        guestfs_close (g);
        exit (77);
    }

    if (!guestfs_filesystem_available (g, "btrfs")) {
        printf ("skipping test because btrfs filesystem is not available\n");
        guestfs_close (g);
        exit (77);
    }

    if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1) goto error;

    if (guestfs_pvcreate (g, "/dev/sda1") == -1) goto error;

    const char *pvs[] = { "/dev/sda1", NULL };
    if (guestfs_vgcreate (g, "VG", (char **) pvs) == -1) goto error;

    if (guestfs_lvcreate (g, "LV", "VG", 900) == -1) goto error;

    if (guestfs_mkfs_btrfs (g, (char * const *)devices, -1) == -1) goto error;

    if (guestfs_mount (g, "/dev/VG/LV", "/") == -1) goto error;

    if (guestfs_btrfs_subvolume_create (g, "/sv") == -1) goto error;

    mountable = guestfs_internal_parse_mountable (g, "/dev/VG/LV");
    if (mountable == NULL) goto error;

    if (mountable->im_type != MOUNTABLE_DEVICE ||
            STRNEQ ("/dev/VG/LV", mountable->im_device)) {
        fprintf (stderr, "incorrectly parsed /dev/VG/LV: im_device=%s\n",
                 mountable->im_device);
        goto error;
    }

    guestfs_free_internal_mountable (mountable);

    mountable = guestfs_internal_parse_mountable (g, "btrfsvol:/dev/VG/LV/sv");
    if (mountable == NULL) goto error;

    if (mountable->im_type != MOUNTABLE_BTRFSVOL ||
            STRNEQ ("/dev/VG/LV", mountable->im_device) ||
            STRNEQ ("sv", mountable->im_volume)) {
        fprintf (stderr, "incorrectly parsed /dev/VG/LV/sv: im_device=%s, im_volume=%s\n",
                 mountable->im_device, mountable->im_volume);
        goto error;
    }
    guestfs_free_internal_mountable (mountable);

    guestfs_close (g);

    exit (EXIT_SUCCESS);
}