This function returns 0 on success or -1 on error.
+=head2 guestfs_lvresize
+
+ int guestfs_lvresize (guestfs_h *handle,
+ const char *device,
+ int mbytes);
+
+This resizes (expands or shrinks) an existing LVM logical
+volume to C<mbytes>. When reducing, data in the reduced part
+is lost.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_lvs
char **guestfs_lvs (guestfs_h *handle);
This function returns 0 on success or -1 on error.
+=head2 guestfs_pvresize
+
+ int guestfs_pvresize (guestfs_h *handle,
+ const char *device);
+
+This resizes (expands or shrinks) an existing LVM physical
+volume to match the new size of the underlying device.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_pvs
char **guestfs_pvs (guestfs_h *handle);
(like L<environ(3)>), or NULL if there was an error.
I<The caller must free the strings and the array after use>.
+=head2 guestfs_resize2fs
+
+ int guestfs_resize2fs (guestfs_h *handle,
+ const char *device);
+
+This resizes an ext2 or ext3 filesystem to match the size of
+the underlying device.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_rm
int guestfs_rm (guestfs_h *handle,
The default is C<NULL> unless overridden by setting
C<LIBGUESTFS_APPEND> environment variable.
-The string C<append> is stashed in the libguestfs handle, so the caller
-must make sure it remains valid for the lifetime of the handle.
-
Setting C<append> to C<NULL> means I<no> additional options
are passed (libguestfs always adds a few of its own).
The default is C<$libdir/guestfs> unless overridden by setting
C<LIBGUESTFS_PATH> environment variable.
-The string C<path> is stashed in the libguestfs handle, so the caller
-must make sure it remains valid for the lifetime of the handle.
-
Setting C<path> to C<NULL> restores the default path.
This function returns 0 on success or -1 on error.
You can also override this by setting the C<LIBGUESTFS_QEMU>
environment variable.
-The string C<qemu> is stashed in the libguestfs handle, so the caller
-must make sure it remains valid for the lifetime of the handle.
-
Setting C<qemu> to C<NULL> restores the default qemu binary.
This function returns 0 on success or -1 on error.
pass C<lines> as a single element list, when the single element being
the string C<,> (comma).
+See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>
+
+This function returns 0 on success or -1 on error.
+
+B<This command is dangerous. Without careful use you
+can easily destroy all your data>.
+
+=head2 guestfs_sfdisk_N
+
+ int guestfs_sfdisk_N (guestfs_h *handle,
+ const char *device,
+ int n,
+ int cyls,
+ int heads,
+ int sectors,
+ const char *line);
+
+This runs L<sfdisk(8)> option to modify just the single
+partition C<n> (note: C<n> counts from 1).
+
+For other parameters, see C<guestfs_sfdisk>. You should usually
+pass C<0> for the cyls/heads/sectors parameters.
+
This function returns 0 on success or -1 on error.
B<This command is dangerous. Without careful use you
can easily destroy all your data>.
+=head2 guestfs_sfdisk_disk_geometry
+
+ char *guestfs_sfdisk_disk_geometry (guestfs_h *handle,
+ const char *device);
+
+This displays the disk geometry of C<device> read from the
+partition table. Especially in the case where the underlying
+block device has been resized, this can be different from the
+kernel's idea of the geometry (see C<guestfs_sfdisk_kernel_geometry>).
+
+The result is in human-readable format, and not designed to
+be parsed.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
+=head2 guestfs_sfdisk_kernel_geometry
+
+ char *guestfs_sfdisk_kernel_geometry (guestfs_h *handle,
+ const char *device);
+
+This displays the kernel's idea of the geometry of C<device>.
+
+The result is in human-readable format, and not designed to
+be parsed.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
+=head2 guestfs_sfdisk_l
+
+ char *guestfs_sfdisk_l (guestfs_h *handle,
+ const char *device);
+
+This displays the partition table on C<device>, in the
+human-readable output of the L<sfdisk(8)> command. It is
+not intended to be parsed.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
=head2 guestfs_stat
struct guestfs_stat *guestfs_stat (guestfs_h *handle,
This function returns 0 on success or -1 on error.
+=head2 guestfs_vg_activate
+
+ int guestfs_vg_activate (guestfs_h *handle,
+ int activate,
+ char * const* const volgroups);
+
+This command activates or (if C<activate> is false) deactivates
+all logical volumes in the listed volume groups C<volgroups>.
+If activated, then they are made known to the
+kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
+then those devices disappear.
+
+This command is the same as running C<vgchange -a y|n volgroups...>
+
+Note that if C<volgroups> is an empty list then B<all> volume groups
+are activated or deactivated.
+
+This function returns 0 on success or -1 on error.
+
+=head2 guestfs_vg_activate_all
+
+ int guestfs_vg_activate_all (guestfs_h *handle,
+ int activate);
+
+This command activates or (if C<activate> is false) deactivates
+all logical volumes in all volume groups.
+If activated, then they are made known to the
+kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
+then those devices disappear.
+
+This command is the same as running C<vgchange -a y|n>
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_vgcreate
int guestfs_vgcreate (guestfs_h *handle,
This function returns 0 on success or -1 on error.
+=head2 guestfs_zerofree
+
+ int guestfs_zerofree (guestfs_h *handle,
+ const char *device);
+
+This runs the I<zerofree> program on C<device>. This program
+claims to zero unused inodes and disk blocks on an ext2/3
+filesystem, thus making it possible to compress the filesystem
+more effectively.
+
+You should B<not> run this program if the filesystem is
+mounted.
+
+It is possible that using this program can damage the filesystem
+or data on the filesystem.
+
+This function returns 0 on success or -1 on error.
+
git.annexia.org / libguestfs.git / blobdiff