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Ticket Resolution Summary Owner Reporter
#19003 fixed Shared folders: ftruncate on file opened with O_APPEND fails with EPERM -> fixed in 6.1.4 BP Anders Kaseorg
Description

In a shared folder mounted from a Windows 10 host (1903 build 18362.295) in an Ubuntu guest (I've tried 18.04 or 19.04) with Guest Additions 6.0.12 installed from the Guest Additions CD, the following unexpectedly fails:

root@osboxes:/mnt/test# python3 -c 'open("foo", "a+").truncate()' Traceback (most recent call last):

File "<string>", line 1, in <module>

PermissionError: [Errno 1] Operation not permitted

Alternate reproduction recipes:

root@osboxes:/mnt/test# perl -e 'open F, ">>foo"; truncate F, 0 or die $!' Operation not permitted at -e line 1.

root@osboxes:/mnt/test# truncate -s0 /dev/stdout >> foo truncate: failed to truncate '/dev/stdout' at 0 bytes: Operation not permitted

#19470 fixed VBoxClient does not implement checkhostversion in 6.1.x => fixed in svn/6.1.x x>6 BP divB
Description

I installed Ubuntu on a guest on Win host and the guest additions seem to be broken: Once installed, I cannot log into my Ubuntu system; I get one of these famous login loops where I immideately get back to the login prompt after login.

I started debugging and found that some x init scripts in /etc/X11 are created which call VBoxClient with various arguments. One of them is:

VBoxClient --checkhostversion

When I execute this same command on the command line I get:

# VBoxClient --checkhostversion
VBoxClient: error: No service specified. Quitting because nothing to do!

Surprisingly I did not find any similar reports but I can clearly reproduce this using VBoxGuestAdditions_6.1.0.iso, VBoxGuestAdditions_6.0.0.iso, VBoxGuestAdditions_6.1.4.iso. Versions before that seem to work.

#19518 fixed Guest command execution fails if more than 2 environment vars are provided => fixed in svn/6.1.x x>6 BP mskov
Description

If more than 2 environment vars are provided during the guest command execution, we get an error VERR_ENV_INVALID_VAR_NAME:

C:\WINDOWS\system32>"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" guestcontrol TestVM run --username root --password keins --exe /bin/ls --putenv "test1=test" --putenv "test2=test" --putenv "test3=test" --wait-stdout
VBoxManage.exe: error: VERR_ENV_INVALID_VAR_NAME
VBoxManage.exe: error: Details: code VBOX_E_IPRT_ERROR (0x80bb0005), component GuestProcessWrap, interface IGuestProcess, callee IUnknown
VBoxManage.exe: error: Context: "WaitForArray(ComSafeArrayAsInParam(aWaitStartFlags), gctlRunGetRemainingTime(msStart, cMsTimeout), &waitResult)" at line 1470 of file VBoxManageGuestCtrl.cpp

With 2 vars it works fine:

C:\WINDOWS\system32>"C:\Program Files\Oracle\VirtualBox\VBoxManage.exe" guestcontrol TestVM run --username root --password keins --exe /bin/ls --putenv "test1=test" --putenv "test2=test" --wait-stdout
bin
boot
data
dev
....

The problem happens with a Debian 10 guest with GAs 6.1.6. It does not happen with GAs 6.1.4 (or earlier).

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