Displaying 20 results from an estimated 30000 matches similar to: "How does guestmount actually work?"
2017 Jan 10
2
ntfs-3g data deduplication support in guestmount for creating file based back-ups on visualization platform
Hello everybody,
I am using libguestfs-tools version 1.28.1 in a bunch of bash scripts to
make back-ups of the files on a visualisation platform.
I been trying to get read access to ntfs volumes with data deduplication
working.
The ntfs-3g guys developed some support and I have this working when
using the commands our back-up servers.
However when using the guestmount tool the read suport
2014 Feb 06
3
Possible to speed up guestmount?
Hi,
Apparently,
guestmount -o allow_other -a "/path/to/raw_file" -m /dev/sda1
"/path/to/mountfolder"
is much slower than
kpartx -av "/path/to/raw_file"
mount /dev/mapper/loop0p1 /path/to/mountfolder
(Doing lots of read/write inside the image.)
I thought guestmount "only" scripts the above. Seems I was wrong on that.
I am currently using
2011 Oct 08
2
guestmount issues with --live, but guestfish works just fine
Hello all,
I am having an issue with guestmount in respect to live instances
and I was hoping someone might have an idea where I've gone wrong. The
following output is from my shell session, if there's any more
information needed please let me know and I'll happily provide it.
[root at longitude ~]# virt-filesystems -d F16-rawhide/dev/sda2
/dev/sda3
[root at longitude ~]#
2017 Jul 31
2
Re: read/write performance through mount point by guestmount
On Mon, Jul 31, 2017 at 06:52:28PM +0800, lampahome wrote:
> if I mount through guestfs library in python or guestfish, the same
> condition happenes?
>
> I mean the insane number of layers and the performance
No. The layers are only present because guestmount uses FUSE.
libguestfs itself performs very well if you are careful to use it in
the correct way.
The architecture of
2010 Apr 14
1
[PATCH] Fix build error in fuse/guestmount.c
guestmount.c: In function 'main':
guestmount.c:899: error: implicit declaration of function 'setlocale'
[-Wimplicit-function-declaration]
guestmount.c wasn't including locale.h.
---
fuse/guestmount.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/fuse/guestmount.c b/fuse/guestmount.c
index b4a917f..27a4cef 100644
--- a/fuse/guestmount.c
+++
2013 Mar 04
1
[PATCH] fuse: Add guestmount-cleanup program to handle unmounting (RHBZ#916780).
* PATCH FOR DISCUSSION ONLY - NOT TO BE APPLIED *
Colin suggested something which seems eminently sensible:
https://bugzilla.redhat.com/show_bug.cgi?id=916780
I've been through a couple of rounds of trying to implement this.
I started with adding the option as suggested to the guestmount
program, but it tended to make the guestmount program more complex.
More importantly, adding the option
2011 Mar 25
2
guestmount support for acls/xattrs
Hello,
I have a vmdk having an LV with an ext3 FS where some files have extended
attributes and acls set.
These do not appear set while accessing them when mounted using guestmount.
I do not know if it is easy or difficult to implement this, so I'd like to
take your opinion.
what I did was changed the default mount options in daemon/mount.c from "ro"
to
2017 Feb 09
1
Re: ntfs-3g data deduplication support in guestmount for creating file based back-ups on visualization platform
Hi Richard,
Is there a way I can access the /var/log/syslog of an running guestmount
instance to get the grep ntfs-3g /var/log/syslog information?
I managed to get the plug-in to load in my questmount instances by using:
echo '/usr/lib/x86_64-linux-gnu/ntfs-3g/ntfs-plugin-*.so' >
/usr/lib/guestfs/supermin.d/zz-ntfs-plugins
rm -rf /var/tmp/.guestfs-*
Kind regards,
Jelle de Jong
2010 Apr 20
1
libguestfs mounting solaris 10 ZFS guest
Not sure if this possible, but I have a KVM guest running Solaris 10
with the OS on ZFS and I am trying to use
libguestfs/guestfish/guestmount to get to the VM. I am running Red Hat
EL 5.4 with EPEL rpms as required.
The VM is on a LV and it boots fine, but I can't seem to get the syntax
correct to get libguestfs to deal with it. Guestmount seemed like the
best option because it supports FUSE
2011 Nov 04
1
guestmount error
On Fri, Nov 04, 2011 at 08:57:27PM +0200, Evaggelos Balaskas wrote:
> sorry for bothering you, but if you gimme some pointers
> it would be great
>
> # file /vm/images/archlinux/archlinux.qcow2
> /vm/images/archlinux/archlinux.qcow2: QEMU QCOW Image (v2), 5368709120 bytes
>
> # ls -la /mnt/
> total 8
> drwxr-xr-x 2 root root 4096 Oct 26 15:31 .
> drwxr-xr-x 24 root
2016 Feb 23
2
Re: guestmount without fstab
[A question about whether it is possible to use guestmount on a guest
which does not have /etc/fstab. I've no reproduced this because I'm
CC-ing my reply to a public mailing list]
It's definitely possible. I would suggest first using
$ virt-filesystems -a disk.img --all --long -h
to get an idea of what's inside your disk image, then you
use a command such as:
$ guestmount
2016 Mar 03
1
Re: "guestmount --rw" fails but "guestmount --ro" succeeds on Ubuntu 14.04
Thanks for your response Rich. Please see the output of --trace --verbose
below. Regarding your suggestion to convert the vmdk to some other format,
I do not want to do it. A security consultant said by modifying certain
files in our VM and restarting the VM, one can gain access to encrypted
data in our VM. I want to reproduce it. I am able to mount the VM but not
able to modify files since it can
2017 Jul 31
2
Re: read/write performance through mount point by guestmount
On Mon, Jul 31, 2017 at 09:49:00AM +0100, Richard W.M. Jones wrote:
> On Mon, Jul 31, 2017 at 12:20:10PM +0800, lampahome wrote:
> > I mount the disk.qcow2 on the /home/test/, and create a 50GB file.
>
> Mount the disk how?
OK, subject says using guestmount.
I'm surprised the slowdown isn't more than 95%. It's using FUSE which
goes through an insane number of layers,
2019 Aug 01
1
guestmount mounts gets corrupted somehow? [iscsi lvm guestmount windows filesystem rsync]
Hello everybody,
I been trying to debug a problem for a month now and can use some
insights and advice.
This is the setup, I got two linux ha storage node providing iscsi disk,
the disks is mounted on two linux kvm host and one backup server.
The iscsi disk has lvm on it, the logical volume groups are visible on
all servers.
On the backup server I have the following running:
# guestmount
2010 Sep 02
2
[PATCH] Allow manual pages and POD files to be translated.
You need to install po4a (in Fedora) to test this.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-df lists disk usage of guests without needing to install any
software inside the virtual machine. Supports Linux and Windows.
http://et.redhat.com/~rjones/virt-df/
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>From 7ca0058ecf24b6963771d0c39fd5e2f36874eb38
2016 Feb 27
2
"guestmount --rw" fails but "guestmount --ro" succeeds on Ubuntu 14.04
lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
guestmount --ro -a agent-disk1.vmdk -i /mnt/vmdk --> Works fine
guestmount --rw -a agent-disk1.vmdk -i /mnt/vmdk
libguestfs: error: appliance closed the connection unexpectedly.
This usually means the libguestfs appliance crashed.
See
2017 Jan 16
0
Re: ntfs-3g data deduplication support in guestmount for creating file based back-ups on visualization platform
On Tue, Jan 10, 2017 at 05:06:13PM +0100, Jelle de Jong wrote:
> Hello everybody,
>
> I am using libguestfs-tools version 1.28.1 in a bunch of bash
> scripts to make back-ups of the files on a visualisation platform.
>
> I been trying to get read access to ntfs volumes with data
> deduplication working.
Do you have more information about data deduplication? It's the
2010 Dec 19
1
[ANNOUNCE] libguestfs 1.8.0 - tools for accessing and modifying VM disk images
We are pleased to announce the next stable release of libguestfs,
tools and a library for accessing, creating and modifying the contents
of virtual machines and disk images.
Home page: http://libguestfs.org/
Binary packages for:
Fedora: http://koji.fedoraproject.org/koji/packageinfo?packageID=8391
Debian: http://libguestfs.org/download/binaries/debian-packages/
Ubuntu:
2015 Nov 06
2
Hierarchical local mount
Hello everyone!
I have to implement the functionality of mounting all VM disks/partitions.
E.g. if a VM has 2 disks of 2 partitions each (I get it from
virt-filesystems), I want to get the following structure on host node
after mount:
mnt/
------hdd0/
-------------volume1/
-------------volume2/
------hdd1/
-------------volume1/
-------------volume2/
I'd like to use guestmount due to
2015 Jan 28
2
Can't create any VPS using KVM template due to the error with libguestfs
Hi,
I'm using SolusVM control panel to create KVM VPS. Suddenly, I can't make
any VPS on Host-Node. Their build log says the SolusVM can't read the
libguestfs in server.
During the debug, I've tried to mount existing VPS using guestmount command
and I can't mount the KVM image.
Please check here.
[root@msv07 /]# guestmount -i -a /dev/msv07data/kvm139_img /mnt
libguestfs: