https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252779
Bug ID: 252779
Summary: emulators/virtualbox-ose 5.2.44 r139111: Cannot open
host device '/dev/cd0' for readonly access. Check the
permissions of that device (VERR_ACCESS_DENIED)
Product: Ports & Packages
Version: Latest
Hardware: Any
URL: https://redd.it/kz48q7
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: Individual Port(s)
Assignee: vbox at FreeBSD.org
Reporter: grahamperrin at gmail.com
Assignee: vbox at FreeBSD.org
Flags: maintainer-feedback?(vbox at FreeBSD.org)
Created attachment 221674
--> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=221674&action=edit
VirtualBox behaves as if it can not read from the device
dd(1) and gdd(1) can read from the device, for example:
% date ; uname -v
Sun 17 Jan 2021 13:28:38 GMT
FreeBSD 13.0-CURRENT #75 main-c572-g82397d791: Sun Jan 3 20:00:09 GMT 2021
root at mowa219-gjp4-8570p:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG
% gdd status=progress bs=24M if=/dev/cd0 of=/tmp/foo.iso
100663296 bytes (101 MB, 96 MiB) copied, 30 s, 3.4 MB/s^C
5+0 records in
4+0 records out
100663296 bytes (101 MB, 96 MiB) copied, 35.0774 s, 2.9 MB/s
%
----
% ls -dhl /dev/cd0
crw-rw-rw- 1 root operator 0x8e 17 Jan 08:51 /dev/cd0
% pw groupshow operator
operator:*:5:root,grahamperrin,bbsadmin-l
% whoami
grahamperrin
% ps aux | grep -i virtualbox
grahamperrin 6049 0.0 1.2 381936 193844 - S 09:06 0:57.96
/usr/local/lib/virtualbox/VirtualBox
grahamperrin 6078 0.0 0.1 28936 15432 - S 09:06 0:09.42
/usr/local/lib/virtualbox/VBoxXPCOMIPCD
grahamperrin 6080 0.0 0.7 206152 119600 - S 09:06 0:26.99
/usr/local/lib/virtualbox/VBoxSVC --auto-shutdown
grahamperrin 12196 0.0 0.3 85504 45972 - I 10:21 0:00.03
/usr/local/lib/libexec/kf5/kioslave5 /usr/local/lib/qt5/plugins/kf5/kio/file.so
file local:/var/run/user/1002/VirtualBoxMOtLyZ.2.slave-so
grahamperrin 13448 0.0 0.0 13052 2792 2 S+ 10:36 0:00.00 grep
-i virtualbox
%
----
Log out not required; I have been using VirtualBox on this computer for around
two years.
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