x/build/cmd/release: Windows installer fails to open device or file when installer file is located on ram disk

[tamayika]

What version of Go are you using (go version)?

go1.13.3.windows-amd64.msi

Does this issue reproduce with the latest release?

Yes

What operating system and processor architecture are you using (go env)?

go env Output

$ go env
go env
set GO111MODULE=on
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\owner\AppData\Local\go-build
set GOENV=C:\Users\owner\AppData\Roaming\go\env
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\owner\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=c:\go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=c:\go\pkg\tool\windows_amd64
set GCCGO=gccgo
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=NUL
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=C:\Users\owner\AppData\Local\Temp\go-build703477710=/tmp/go-build -gno-record-gcc-switches

What did you do?

1. Download https://sourceforge.net/projects/imdisk-toolkit/, install, then create ram disk.
2. Download windows golang installer and move it to ram disk root.
3. Double click installer and try to install it by default setting.

What did you expect to see?

Installer installed files successfully.

What did you see instead?

Error dialog shows like attached images which means "cannot open the device or file specified" in japanese. Retry does not have any effect.

If I moved installer to physical disk, installer works fine.
I've never experienced this problems in other installers.

[ALTree]

cc @alexbrainman

Thanks for the report.

@tamayika Out of curiosity: is the inability to run the installer from a ramdisk a showstopper for you (and if yes, can you explain why, and what your use-case is)? Or does the obvious workaround - not running the installer from a ramdisk - work well for you, and this is more of an "exotic" defect report? I'm asking because the answer may help assessing the seriousness of this issue.

[tamayika]

I usually use Firefox for browsing, and its download destination is ram disk. This is useful to cleanup unnecessary downloaded files when rebooting os.
I can't solved by googling this error message, so I doubted Firefox download bug and used Google Chrome instead. Google Chrome download destination is default(User Downloads dir), and it worked file. And I finally found the problem is installer location.
I don't think you must fix this bug because there is a workround, but I hope this issue will help someone who will meet this problem.

[alexbrainman]

@tamayika I know very little about how Go installer works. I cannot help you.

Alex