def set_autosync (self, autosync):
u"""If "autosync" is true, this enables autosync. Libguestfs
- will make a best effort attempt to run "g.sync" when the
- handle is closed (also if the program exits without
- closing handles).
+ will make a best effort attempt to run "g.umount_all"
+ followed by "g.sync" when the handle is closed (also if
+ the program exits without closing handles).
+
+ This is disabled by default (except in guestfish where
+ it is enabled by default).
"""
return libguestfsmod.set_autosync (self._o, autosync)
return libguestfsmod.statvfs (self._o, path)
def tune2fs_l (self, device):
- u"""This returns the contents of the ext2 or ext3 filesystem
- superblock on "device".
+ u"""This returns the contents of the ext2, ext3 or ext4
+ filesystem superblock on "device".
It is the same as running "tune2fs -l device". See
tune2fs(8) manpage for more details. The list of fields
"""
return libguestfsmod.mount_vfs (self._o, options, vfstype, device, mountpoint)
+ def debug (self, subcmd, extraargs):
+ u"""The "g.debug" command exposes some internals of
+ "guestfsd" (the guestfs daemon) that runs inside the
+ qemu subprocess.
+
+ There is no comprehensive help for this command. You
+ have to look at the file "daemon/debug.c" in the
+ libguestfs source to find out what you can do.
+ """
+ return libguestfsmod.debug (self._o, subcmd, extraargs)
+
+ def lvremove (self, device):
+ u"""Remove an LVM logical volume "device", where "device" is
+ the path to the LV, such as "/dev/VG/LV".
+
+ You can also remove all LVs in a volume group by
+ specifying the VG name, "/dev/VG".
+ """
+ return libguestfsmod.lvremove (self._o, device)
+
+ def vgremove (self, vgname):
+ u"""Remove an LVM volume group "vgname", (for example "VG").
+
+ This also forcibly removes all logical volumes in the
+ volume group (if any).
+ """
+ return libguestfsmod.vgremove (self._o, vgname)
+
+ def pvremove (self, device):
+ u"""This wipes a physical volume "device" so that LVM will
+ no longer recognise it.
+
+ The implementation uses the "pvremove" command which
+ refuses to wipe physical volumes that contain any volume
+ groups, so you have to remove those first.
+ """
+ return libguestfsmod.pvremove (self._o, device)
+
+ def set_e2label (self, device, label):
+ u"""This sets the ext2/3/4 filesystem label of the
+ filesystem on "device" to "label". Filesystem labels are
+ limited to 16 characters.
+
+ You can use either "g.tune2fs_l" or "g.get_e2label" to
+ return the existing label on a filesystem.
+ """
+ return libguestfsmod.set_e2label (self._o, device, label)
+
+ def get_e2label (self, device):
+ u"""This returns the ext2/3/4 filesystem label of the
+ filesystem on "device".
+ """
+ return libguestfsmod.get_e2label (self._o, device)
+
+ def set_e2uuid (self, device, uuid):
+ u"""This sets the ext2/3/4 filesystem UUID of the filesystem
+ on "device" to "uuid". The format of the UUID and
+ alternatives such as "clear", "random" and "time" are
+ described in the tune2fs(8) manpage.
+
+ You can use either "g.tune2fs_l" or "g.get_e2uuid" to
+ return the existing UUID of a filesystem.
+ """
+ return libguestfsmod.set_e2uuid (self._o, device, uuid)
+
+ def get_e2uuid (self, device):
+ u"""This returns the ext2/3/4 filesystem UUID of the
+ filesystem on "device".
+ """
+ return libguestfsmod.get_e2uuid (self._o, device)
+
+ def fsck (self, fstype, device):
+ u"""This runs the filesystem checker (fsck) on "device"
+ which should have filesystem type "fstype".
+
+ The returned integer is the status. See fsck(8) for the
+ list of status codes from "fsck".
+
+ Notes:
+
+ * Multiple status codes can be summed together.
+
+ * A non-zero return code can mean "success", for
+ example if errors have been corrected on the
+ filesystem.
+
+ * Checking or repairing NTFS volumes is not supported
+ (by linux-ntfs).
+
+ This command is entirely equivalent to running "fsck -a
+ -t fstype device".
+ """
+ return libguestfsmod.fsck (self._o, fstype, device)
+
+ def zero (self, device):
+ u"""This command writes zeroes over the first few blocks of
+ "device".
+
+ How many blocks are zeroed isn't specified (but it's
+ *not* enough to securely wipe the device). It should be
+ sufficient to remove any partition tables, filesystem
+ superblocks and so on.
+ """
+ return libguestfsmod.zero (self._o, device)
+
+ def grub_install (self, root, device):
+ u"""This command installs GRUB (the Grand Unified
+ Bootloader) on "device", with the root directory being
+ "root".
+ """
+ return libguestfsmod.grub_install (self._o, root, device)
+
+ def cp (self, src, dest):
+ u"""This copies a file from "src" to "dest" where "dest" is
+ either a destination filename or destination directory.
+ """
+ return libguestfsmod.cp (self._o, src, dest)
+
+ def cp_a (self, src, dest):
+ u"""This copies a file or directory from "src" to "dest"
+ recursively using the "cp -a" command.
+ """
+ return libguestfsmod.cp_a (self._o, src, dest)
+
+ def mv (self, src, dest):
+ u"""This moves a file from "src" to "dest" where "dest" is
+ either a destination filename or destination directory.
+ """
+ return libguestfsmod.mv (self._o, src, dest)
+
+ def drop_caches (self, whattodrop):
+ u"""This instructs the guest kernel to drop its page cache,
+ and/or dentries and inode caches. The parameter
+ "whattodrop" tells the kernel what precisely to drop,
+ see <http://linux-mm.org/Drop_Caches>
+
+ Setting "whattodrop" to 3 should drop everything.
+
+ This automatically calls sync(2) before the operation,
+ so that the maximum guest memory is freed.
+ """
+ return libguestfsmod.drop_caches (self._o, whattodrop)
+
+ def dmesg (self):
+ u"""This returns the kernel messages ("dmesg" output) from
+ the guest kernel. This is sometimes useful for extended
+ debugging of problems.
+
+ Another way to get the same information is to enable
+ verbose messages with "g.set_verbose" or by setting the
+ environment variable "LIBGUESTFS_DEBUG=1" before running
+ the program.
+ """
+ return libguestfsmod.dmesg (self._o)
+
+ def ping_daemon (self):
+ u"""This is a test probe into the guestfs daemon running
+ inside the qemu subprocess. Calling this function checks
+ that the daemon responds to the ping message, without
+ affecting the daemon or attached block device(s) in any
+ other way.
+ """
+ return libguestfsmod.ping_daemon (self._o)
+
+ def equal (self, file1, file2):
+ u"""This compares the two files "file1" and "file2" and
+ returns true if their content is exactly equal, or false
+ otherwise.
+
+ The external cmp(1) program is used for the comparison.
+ """
+ return libguestfsmod.equal (self._o, file1, file2)
+
git.annexia.org / libguestfs.git / blobdiff