to modify the image).
This is equivalent to the qemu parameter "-drive
- file=filename".
+ file=filename,cache=off".
+
+ Note that this call checks for the existence of
+ "filename". This stops you from specifying other types
+ of drive which are supported by qemu such as "nbd:" and
+ "http:" URLs. To specify those, use the general
+ "g.config" call instead.
"""
return libguestfsmod.add_drive (self._o, filename)
This is equivalent to the qemu parameter "-cdrom
filename".
+
+ Note that this call checks for the existence of
+ "filename". This stops you from specifying other types
+ of drive which are supported by qemu such as "nbd:" and
+ "http:" URLs. To specify those, use the general
+ "g.config" call instead.
"""
return libguestfsmod.add_cdrom (self._o, filename)
+ def add_drive_ro (self, filename):
+ u"""This adds a drive in snapshot mode, making it
+ effectively read-only.
+
+ Note that writes to the device are allowed, and will be
+ seen for the duration of the guestfs handle, but they
+ are written to a temporary file which is discarded as
+ soon as the guestfs handle is closed. We don't currently
+ have any method to enable changes to be committed,
+ although qemu can support this.
+
+ This is equivalent to the qemu parameter "-drive
+ file=filename,snapshot=on".
+
+ Note that this call checks for the existence of
+ "filename". This stops you from specifying other types
+ of drive which are supported by qemu such as "nbd:" and
+ "http:" URLs. To specify those, use the general
+ "g.config" call instead.
+ """
+ return libguestfsmod.add_drive_ro (self._o, filename)
+
def config (self, qemuparam, qemuvalue):
u"""This can be used to add arbitrary qemu command line
parameters of the form "-param value". Actually it's not
"""
return libguestfsmod.end_busy (self._o)
+ def set_memsize (self, memsize):
+ u"""This sets the memory size in megabytes allocated to the
+ qemu subprocess. This only has any effect if called
+ before "g.launch".
+
+ You can also change this by setting the environment
+ variable "LIBGUESTFS_MEMSIZE" before the handle is
+ created.
+
+ For more information on the architecture of libguestfs,
+ see guestfs(3).
+ """
+ return libguestfsmod.set_memsize (self._o, memsize)
+
+ def get_memsize (self):
+ u"""This gets the memory size in megabytes allocated to the
+ qemu subprocess.
+
+ If "g.set_memsize" was not called on this handle, and if
+ "LIBGUESTFS_MEMSIZE" was not set, then this returns the
+ compiled-in default value for memsize.
+
+ For more information on the architecture of libguestfs,
+ see guestfs(3).
+ """
+ return libguestfsmod.get_memsize (self._o)
+
def mount (self, device, mountpoint):
u"""Mount a guest disk at a position in the filesystem.
Block devices are named "/dev/sda", "/dev/sdb" and so
The single parameter is an argv-style list of arguments.
The first element is the name of the program to run.
Subsequent elements are parameters. The list must be
- non-empty (ie. must contain a program name).
+ non-empty (ie. must contain a program name). Note that
+ the command runs directly, and is *not* invoked via the
+ shell (see "g.sh").
The return value is anything printed to *stdout* by the
command.
u"""This is the same as "g.command", but splits the result
into a list of lines.
+ See also: "g.sh_lines"
+
This function returns a list of strings.
Because of the message protocol, there is a transfer
*not* enough to securely wipe the device). It should be
sufficient to remove any partition tables, filesystem
superblocks and so on.
+
+ See also: "g.scrub_device".
"""
return libguestfsmod.zero (self._o, device)
"""
return libguestfsmod.pvresize (self._o, device)
- def sfdisk_N (self, device, n, cyls, heads, sectors, line):
+ def sfdisk_N (self, device, partnum, cyls, heads, sectors, line):
u"""This runs sfdisk(8) option to modify just the single
partition "n" (note: "n" counts from 1).
This command is dangerous. Without careful use you can
easily destroy all your data.
"""
- return libguestfsmod.sfdisk_N (self._o, device, n, cyls, heads, sectors, line)
+ return libguestfsmod.sfdisk_N (self._o, device, partnum, cyls, heads, sectors, line)
def sfdisk_l (self, device):
u"""This displays the partition table on "device", in the
"""
return libguestfsmod.e2fsck_f (self._o, device)
+ def sleep (self, secs):
+ u"""Sleep for "secs" seconds.
+ """
+ return libguestfsmod.sleep (self._o, secs)
+
+ def ntfs_3g_probe (self, rw, device):
+ u"""This command runs the ntfs-3g.probe(8) command which
+ probes an NTFS "device" for mountability. (Not all NTFS
+ volumes can be mounted read-write, and some cannot be
+ mounted at all).
+
+ "rw" is a boolean flag. Set it to true if you want to
+ test if the volume can be mounted read-write. Set it to
+ false if you want to test if the volume can be mounted
+ read-only.
+
+ The return value is an integer which 0 if the operation
+ would succeed, or some non-zero value documented in the
+ ntfs-3g.probe(8) manual page.
+ """
+ return libguestfsmod.ntfs_3g_probe (self._o, rw, device)
+
+ def sh (self, command):
+ u"""This call runs a command from the guest filesystem via
+ the guest's "/bin/sh".
+
+ This is like "g.command", but passes the command to:
+
+ /bin/sh -c "command"
+
+ Depending on the guest's shell, this usually results in
+ wildcards being expanded, shell expressions being
+ interpolated and so on.
+
+ All the provisos about "g.command" apply to this call.
+ """
+ return libguestfsmod.sh (self._o, command)
+
+ def sh_lines (self, command):
+ u"""This is the same as "g.sh", but splits the result into a
+ list of lines.
+
+ See also: "g.command_lines"
+
+ This function returns a list of strings.
+ """
+ return libguestfsmod.sh_lines (self._o, command)
+
+ def glob_expand (self, pattern):
+ u"""This command searches for all the pathnames matching
+ "pattern" according to the wildcard expansion rules used
+ by the shell.
+
+ If no paths match, then this returns an empty list
+ (note: not an error).
+
+ It is just a wrapper around the C glob(3) function with
+ flags "GLOB_MARK|GLOB_BRACE". See that manual page for
+ more details.
+
+ This function returns a list of strings.
+ """
+ return libguestfsmod.glob_expand (self._o, pattern)
+
+ def scrub_device (self, device):
+ u"""This command writes patterns over "device" to make data
+ retrieval more difficult.
+
+ It is an interface to the scrub(1) program. See that
+ manual page for more details.
+
+ This command is dangerous. Without careful use you can
+ easily destroy all your data.
+ """
+ return libguestfsmod.scrub_device (self._o, device)
+
+ def scrub_file (self, file):
+ u"""This command writes patterns over a file to make data
+ retrieval more difficult.
+
+ The file is *removed* after scrubbing.
+
+ It is an interface to the scrub(1) program. See that
+ manual page for more details.
+ """
+ return libguestfsmod.scrub_file (self._o, file)
+
+ def scrub_freespace (self, dir):
+ u"""This command creates the directory "dir" and then fills
+ it with files until the filesystem is full, and scrubs
+ the files as for "g.scrub_file", and deletes them. The
+ intention is to scrub any free space on the partition
+ containing "dir".
+
+ It is an interface to the scrub(1) program. See that
+ manual page for more details.
+ """
+ return libguestfsmod.scrub_freespace (self._o, dir)
+
+ def mkdtemp (self, template):
+ u"""This command creates a temporary directory. The
+ "template" parameter should be a full pathname for the
+ temporary directory name with the final six characters
+ being "XXXXXX".
+
+ For example: "/tmp/myprogXXXXXX" or
+ "/Temp/myprogXXXXXX", the second one being suitable for
+ Windows filesystems.
+
+ The name of the temporary directory that was created is
+ returned.
+
+ The temporary directory is created with mode 0700 and is
+ owned by root.
+
+ The caller is responsible for deleting the temporary
+ directory and its contents after use.
+
+ See also: mkdtemp(3)
+ """
+ return libguestfsmod.mkdtemp (self._o, template)
+
+ def wc_l (self, path):
+ u"""This command counts the lines in a file, using the "wc
+ -l" external command.
+ """
+ return libguestfsmod.wc_l (self._o, path)
+
+ def wc_w (self, path):
+ u"""This command counts the words in a file, using the "wc
+ -w" external command.
+ """
+ return libguestfsmod.wc_w (self._o, path)
+
+ def wc_c (self, path):
+ u"""This command counts the characters in a file, using the
+ "wc -c" external command.
+ """
+ return libguestfsmod.wc_c (self._o, path)
+
+ def head (self, path):
+ u"""This command returns up to the first 10 lines of a file
+ as a list of strings.
+
+ This function returns a list of strings.
+
+ Because of the message protocol, there is a transfer
+ limit of somewhere between 2MB and 4MB. To transfer
+ large files you should use FTP.
+ """
+ return libguestfsmod.head (self._o, path)
+
+ def head_n (self, nrlines, path):
+ u"""If the parameter "nrlines" is a positive number, this
+ returns the first "nrlines" lines of the file "path".
+
+ If the parameter "nrlines" is a negative number, this
+ returns lines from the file "path", excluding the last
+ "nrlines" lines.
+
+ If the parameter "nrlines" is zero, this returns an
+ empty list.
+
+ This function returns a list of strings.
+
+ Because of the message protocol, there is a transfer
+ limit of somewhere between 2MB and 4MB. To transfer
+ large files you should use FTP.
+ """
+ return libguestfsmod.head_n (self._o, nrlines, path)
+
+ def tail (self, path):
+ u"""This command returns up to the last 10 lines of a file
+ as a list of strings.
+
+ This function returns a list of strings.
+
+ Because of the message protocol, there is a transfer
+ limit of somewhere between 2MB and 4MB. To transfer
+ large files you should use FTP.
+ """
+ return libguestfsmod.tail (self._o, path)
+
+ def tail_n (self, nrlines, path):
+ u"""If the parameter "nrlines" is a positive number, this
+ returns the last "nrlines" lines of the file "path".
+
+ If the parameter "nrlines" is a negative number, this
+ returns lines from the file "path", starting with the
+ "-nrlines"th line.
+
+ If the parameter "nrlines" is zero, this returns an
+ empty list.
+
+ This function returns a list of strings.
+
+ Because of the message protocol, there is a transfer
+ limit of somewhere between 2MB and 4MB. To transfer
+ large files you should use FTP.
+ """
+ return libguestfsmod.tail_n (self._o, nrlines, path)
+
+ def df (self):
+ u"""This command runs the "df" command to report disk space
+ used.
+
+ This command is mostly useful for interactive sessions.
+ It is *not* intended that you try to parse the output
+ string. Use "statvfs" from programs.
+ """
+ return libguestfsmod.df (self._o)
+
+ def df_h (self):
+ u"""This command runs the "df -h" command to report disk
+ space used in human-readable format.
+
+ This command is mostly useful for interactive sessions.
+ It is *not* intended that you try to parse the output
+ string. Use "statvfs" from programs.
+ """
+ return libguestfsmod.df_h (self._o)
+
+ def du (self, path):
+ u"""This command runs the "du -s" command to estimate file
+ space usage for "path".
+
+ "path" can be a file or a directory. If "path" is a
+ directory then the estimate includes the contents of the
+ directory and all subdirectories (recursively).
+
+ The result is the estimated size in *kilobytes* (ie.
+ units of 1024 bytes).
+ """
+ return libguestfsmod.du (self._o, path)
+
+ def initrd_list (self, path):
+ u"""This command lists out files contained in an initrd.
+
+ The files are listed without any initial "/" character.
+ The files are listed in the order they appear (not
+ necessarily alphabetical). Directory names are listed as
+ separate items.
+
+ Old Linux kernels (2.4 and earlier) used a compressed
+ ext2 filesystem as initrd. We *only* support the newer
+ initramfs format (compressed cpio files).
+
+ This function returns a list of strings.
+ """
+ return libguestfsmod.initrd_list (self._o, path)
+
+ def mount_loop (self, file, mountpoint):
+ u"""This command lets you mount "file" (a filesystem image
+ in a file) on a mount point. It is entirely equivalent
+ to the command "mount -o loop file mountpoint".
+ """
+ return libguestfsmod.mount_loop (self._o, file, mountpoint)
+
+ def mkswap (self, device):
+ u"""Create a swap partition on "device".
+ """
+ return libguestfsmod.mkswap (self._o, device)
+
+ def mkswap_L (self, label, device):
+ u"""Create a swap partition on "device" with label "label".
+ """
+ return libguestfsmod.mkswap_L (self._o, label, device)
+
+ def mkswap_U (self, uuid, device):
+ u"""Create a swap partition on "device" with UUID "uuid".
+ """
+ return libguestfsmod.mkswap_U (self._o, uuid, device)
+
+ def mknod (self, mode, devmajor, devminor, path):
+ u"""This call creates block or character special devices, or
+ named pipes (FIFOs).
+
+ The "mode" parameter should be the mode, using the
+ standard constants. "devmajor" and "devminor" are the
+ device major and minor numbers, only used when creating
+ block and character special devices.
+ """
+ return libguestfsmod.mknod (self._o, mode, devmajor, devminor, path)
+
+ def mkfifo (self, mode, path):
+ u"""This call creates a FIFO (named pipe) called "path" with
+ mode "mode". It is just a convenient wrapper around
+ "g.mknod".
+ """
+ return libguestfsmod.mkfifo (self._o, mode, path)
+
+ def mknod_b (self, mode, devmajor, devminor, path):
+ u"""This call creates a block device node called "path" with
+ mode "mode" and device major/minor "devmajor" and
+ "devminor". It is just a convenient wrapper around
+ "g.mknod".
+ """
+ return libguestfsmod.mknod_b (self._o, mode, devmajor, devminor, path)
+
+ def mknod_c (self, mode, devmajor, devminor, path):
+ u"""This call creates a char device node called "path" with
+ mode "mode" and device major/minor "devmajor" and
+ "devminor". It is just a convenient wrapper around
+ "g.mknod".
+ """
+ return libguestfsmod.mknod_c (self._o, mode, devmajor, devminor, path)
+
+ def umask (self, mask):
+ u"""This function sets the mask used for creating new files
+ and device nodes to "mask & 0777".
+
+ Typical umask values would be 022 which creates new
+ files with permissions like "-rw-r--r--" or
+ "-rwxr-xr-x", and 002 which creates new files with
+ permissions like "-rw-rw-r--" or "-rwxrwxr-x".
+
+ See also umask(2), "g.mknod", "g.mkdir".
+
+ This call returns the previous umask.
+ """
+ return libguestfsmod.umask (self._o, mask)
+
git.annexia.org / libguestfs.git / blobdiff