Bug 1173695

Summary: RFE: allow passing in a pre-opened libvirt connection from python
Product: Red Hat Enterprise Linux 7 Reporter: Giuseppe Scrivano <gscrivan>
Component: libguestfsAssignee: Richard W.M. Jones <rjones>
Status: CLOSED ERRATA QA Contact: Virtualization Bugs <virt-bugs>
Severity: high Docs Contact: Jiri Herrmann <jherrman>
Priority: high    
Version: 7.1CC: areis, dyuan, gscrivan, hhuang, huding, jherrman, jsuchane, juzhang, juzhou, knoel, kwolf, leiwang, linl, mbooth, mzhan, phrdina, ptoscano, rbalakri, rjones, sherold, stefanha, tzheng, virt-bugs, virt-maint, wshi, xchen, xfu
Target Milestone: rcKeywords: FutureFeature
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: libguestfs-1.32.0-2.el7 Doc Type: Release Note
Doc Text:
Accessing guest disks on *virt-manager* works properly with SELinux and _libguestfs-python_ Prior to this update, when the _libguestfs-python_ package was installed and SELinux was enabled on the host machine, accessing guest disks using the *virt-manager* interface caused I/O failures. Now, *virt-manager* and the _libguestfs_ library share the same _libvirt_ connection, which prevents the described failures from occurring.
Story Points: ---
Clone Of: 1138203 Environment:
Last Closed: 2016-11-03 17:48:01 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1075143, 1173697, 1175795, 1218766    
Bug Blocks: 1138203, 1288337, 1301891, 1305606, 1313485    

Comment 3 Richard W.M. Jones 2015-09-23 14:29:21 UTC
We're going to rebase to libguestfs 1.32 (bug 1218766), and
that version includes this fix.

Comment 6 Xianghua Chen 2016-08-03 10:03:36 UTC
Verified with packages:
libguestfs-1.33.46-1.el7.x86_64

Verify steps:
1. Prepare a RHEL guest image and start it:
# virsh start rhel6.8
# virsh list --all
 Id    Name                           State
----------------------------------------------------
 2     rhel6.8                        running

2. Login into the guest:
# virsh console 2
Try to  write to the disk:
# while sleep 1; do echo a > ~/output; done

3. On host, run following command:
# guestfish --ro -i rhel6.8.qcow2 
Welcome to guestfish, the guest filesystem shell for
editing virtual machine filesystems and disk images.

Type: 'help' for help on commands
      'man' to read the manual
      'quit' to quit the shell

Operating system: Red Hat Enterprise Linux Server release 6.8 (Santiago)
/dev/vg_dhcp8136/lv_root mounted on /
/dev/sda1 mounted on /boot

><fs> ls /

....

4. Check the command running status in guest in step 2, there is no error like:
# while sleep 1; do echo a > ~/output; done
 kernel:journal commit I/O error
bash: /root/output: Read-only file system
...

So verified.

Comment 8 errata-xmlrpc 2016-11-03 17:48:01 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://rhn.redhat.com/errata/RHSA-2016-2576.html