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New API: remove-drive.
Note because of a bug in fuser, this only works with psmisc >= 22.20.
This also updates the hotplugging tests.
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When libvirt is used, we can allow disks to be hotplugged.
guestfs_add_drive can be called after launch to hot-add a disk.
When a disk is hot-added, we first ask libvirt to add the disk to the
appliance, then we make an internal call into the appliance to get it
to wait for the disk to appear (ie. udev_settle ()).
Hot-added disks are tracked in the g->drives array.
This also adds a test.
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New API: list-disk-labels
Allow the user to pass an optional disk label when adding a drive.
This is passed through to qemu / libvirt using the disk serial field,
and from there to the appliance which exposes it through udev,
creating a special alias of the device /dev/disk/guestfs/<label>.
Partitions are named /dev/disk/guestfs/<label><partnum>.
virtio-blk and virtio-scsi limit the serial field to 20 bytes. We
further limit the name to maximum 20 ASCII characters in [a-zA-Z].
list-devices and list-partitions are not changed: these calls still
return raw block device names. However a new call, list-disk-labels,
returns a hash table allowing callers to map between disk labels, and
block device and partition names.
This commit also includes a test.
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It is slightly dangerous to use @PATTERNS@, since these might
be substituted by autoconf when they appear in Makefile.am files.
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There's not really any point just documenting that people
should label the tmp directory, when we can just label it.
So change the ./run script so it calls chcon.
However it's not a failure if chcon doesn't work. If SELinux
is not installed or is disabled, then labelling will fail.
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Having a separate directory means:
(1) It's easy to clean up orphaned temporary files, the appliance,
etc.
(2) You can put an SELinux label on this directory so that qemu can
write to it when you're using sVirt and SELinux is enforcing:
chcon --reference=/tmp tmp
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This is a simple renaming of the files/modules.
Note that in OCaml, module names are derived from filenames by
capitalizing the first letter. Thus the old module names had the form
"Generator_api_versions". The new modules names have the form
"Api_versions".
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Transscribe many hivex(3) APIs into the libguestfs API.
There is one hive handle per libguestfs handle, as with Augeas.
Note that hivex uses iconv_open for some APIs (eg. hivex_value_string).
But since we delete all the i18n files from the appliance, this
doesn't work -- iconv_open returns EINVAL. Therefore hivex APIs which
require iconv cannot be bound in the daemon.
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section.
Ensure each man page contains consistent COPYRIGHT and AUTHOR
sections.
Remove the LICENSE section. We will add that back in podwrapper in a
later commit.
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It's always been possible to use /dev/null as a disk image.
Document this formally in the API.
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Since our minimum supported version is now 1.16 and mount was fixed in
1.13.16, it is now safe to replace mount-options + empty options with
mount wherever it occurs.
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This updates commit 92e241440d361e9491a9d96d23ad7a378cb2ab6a.
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Note that we add the text version to git so that it's available for
people to read without requiring any special tools.
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(RHBZ#845488).
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You can now choose the default attach method in two ways:
(1) Set the LIBGUESTFS_ATTACH_METHOD environment variable.
(2) ./configure --with-default-attach-method=appliance|libvirt|...
Note that (1) overrides (2).
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With this commit, you can set the attach method to libvirt,
but calling launch will give an error.
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Instead of working around bugs, podwrapper has been fixed so that
links work in all output formats.
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The new API splits orderly close into a two-step process:
if (guestfs_shutdown (g) == -1) {
/* handle the error, eg. qemu error */
}
guestfs_close (g);
Note that the explicit shutdown step is only necessary in the case
where you have made changes to the disk image and want to handle write
errors. Read the documentation for further information.
This change also:
- deprecates guestfs_kill_subprocess
- turns guestfs_kill_subprocess into the same as guestfs_shutdown
- changes guestfish and other tools to call shutdown + close
where necessary (not for read-only tools)
- updates documentation
- updates examples
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This API makes device names canonical, eg. /dev/vda1 -> /dev/sda1.
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Returns the maximum number of disks that may be added to a handle.
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This also creates an internal filesystem_available function within the
daemon.
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Make the introduction in the man page shorter and punchier, so it
leads readers directly to other pages of interest.
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Originally this state was intended so that in some way you could find
out if the appliance was running a command. However there was never a
thread-safe way to access the state of the handle, so in effect you
could never do anything useful safely with this information.
This commit completely removes the BUSY state.
The only visible change is to the guestfs_is_busy API. Previously you
could never call this safely from another thread. If you called it
from the same thread it would always return false (since the current
thread can't be running a libguestfs command at that point by
definition). Now it always returns false.
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This contains tips for engineering libguestfs for greatest performance.
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guestfs(3) man page.
Inexplicably these were not included before.
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Add FUSE support directly to the API. Instead of needing to use the
external 'guestmount' command, you can mount the libguestfs filesystem
space on a local mountpoint using an API call from any language.
Note that although mount-local-run is marked as Cancellable, the
current implementation does not support it, but it would be relatively
simple to add it.
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Update all copyright dates to 2012.
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This tool allows you to easily reformat a disk, creating a blank disk
with optional partition, LVM and empty filesystem.
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