VirtualBox

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Ticket Resolution Summary Owner Reporter
#5680 worksforme iso-Image of a CD leads to an error from virtual media manager Thomas Meyer
Description

After updating to 3.10 I received an error when I start up Virtual Box, caused by an older cd-image. This occurs on 2 different macs, the image is mountable under Mac OS-X 10.5.8. deleting the image from the list of CD/DVD-images in virtual media manager and adding it again, leads to the same error-message(see below). In the log-files are not any related errors, so I don't include them here.

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Could not open the medium '/Users/Shared/vpc-images/cd dvd images/notcd.iso'.
VD: error VERR_VD_RAW_INVALID_HEADER opening image file '/Users/Shared/vpc-images/cd dvd images/notcd.iso' (VERR_VD_RAW_INVALID_HEADER).

Fehlercode:
NS_ERROR_FAILURE (0x80004005)
Komponente:
Medium
Interface:
IMedium {aa8167ba-df72-4738-b740-9b84377ba9f1}
Callee:
IVirtualBox {2158464a-f706-414b-a8c4-fb589dfc6b62}

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#13915 fixed Windows 8.1 host, VB 4.3.24 DNS for NAT Network stopped working tkvb
Description

Host: Windows 8.1, VB 4.3.24

Guests: 2 Lubuntu 14.04.2, configured with NAT Network 10.0.5.0/24, static IPs, DNS 10.0.5.1, gateway 10.0.5.1

The reason I want static IPs is so that the VMs can talk to each other and to have stable names for them in /etc/hosts. Also, this is running on a laptop that moves between networks so I cannot do bridge as in some cases I can't get more than 1 IP.

With 4.3.22, I could set 10.0.5.1 as the DNS server in the guests (/etc/resolv.conf) and it would work fine, DNS requests would be proxied via the host resolver (I had set --natdnshostresolver1 on each VM). This stopped working in 4.3.24, 10.0.5.1 no longer responds to DNS requests, it just times out. I tried setting (again):

"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" modifyvm "Lubuntu" --natdnshostresolver1 on

but it does not help.

The only solution so far is to use a different DNS server (e.g. 8.8.8.8) in the guests, but that's less than ideal because some networks don't allow access to public DNS servers, internal servers must be used instead. The idea was to have VB proxy DNS requests all the time via the host resolver so I never have to worry about DNS settings in the guests (the host always gets them correctly via DHCP).

#13987 fixed VBox 4.3.26 NAT Network unstable tkvb
Description

VBox 4.3.26 running on Windows 8.1 x64 host 2 Ubuntu 14.04.2 VMs configured to use a NAT network

After a while (maybe under heavy network load between the 2 VMs?) the NAT network stops passing traffic to the outside world. The 2 VMs can still talk to each other but not with the outside world until they are both rebooted.

This started with the upgrade to 4.3.26, the same setup worked OK before.

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