maestrouser-Apr2001: Re: unable to access files without extensi

Re: unable to access files without extension
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Date: Wed Apr 04 2001 - 10:24:10 EDT

Previous message: Avery, Troy A: "Intermittent error:"
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Hi,

thank you Mr. D'Souza.

again the problem with files that are browsable but cannot be opened or
copied.

The cdrom causing the problems is written with Easy CD Creator in iso9660
mode 1. I got access to extension-less files when I took a cd from SUN. I could
open and copy them.
I then took various files (ascii and binary) and removed their extensions
and burned them on a cd. I could reproduce the fault with this cd.

>I have been trying numerous ways to reproduce this behavior without any
>luck. I am using the original Solaris CD for Sparc which contains hundreds
>of files without extensions. I've linked the drive with and without CDROM
>option, with lowercase, uppercase and preserve case. I attempted to copy

I tried lower- and uppercase as well preserve case too. When I did not
activate the option "cdrom" both on the W2K and Win95 client every extension-less
file had a dot at the end. None of those file were accessible. The files with
an extension were accessible.

>the file from the mounted drive F: to the desktop and to a local hard drive
>in Explorer. I also attempted to left click & drag, as well as right click
>& drag & select copy. From a command line, I was able to copy the file
>from F:\ to D:\ and open the file directly on the CDROM with notepad and
the
>copied file on drive D:

Does not work here.

>You said that the copy works on your Windows 95 clients running NFS Maestro
>6.2, but not on Windows 2000. Are you copying the file to a specific
>directory (access permissions)? Can you also copy the file to the desktop?

The W2K user has admin rights. There is no problem with accessing the local
filesystem.

>How did you export the CDROM or are you using Volume Manager to export the
>file system? Since you're able to copy & read the files from 95, I won't

After the cdrom is inserted and automounted, I share it with this command:
"share -F nfs -o ro /cdrom/test"

>waste your time by making you look into the UNIX side of things. If you're
>familiar with the snoop trace utility on Solaris, you can also use that to
>determine what is going on in the background that cannot be seen by the
eye.
>Maybe this will lead you in the right direction?

I made some snoops. Some with a W2K client and Win95 client. I am not able
to fully understand these snoops. So, perhaps you can help me. All I can see
on W2K is a lookup and a "no such file ..." as reply.

>By the way - are the extension-less file(s) just text (ASCII) files or are
>they binary files that you're actually attempting to run from remote? How
>large are the files?

They are binary files. They have no specific size. The range is fex bytes to
some hundret MB.

The errormessage I get on the W2K client is "file not found".

There is another strange behavior. When I do a "ls -l" on DOS-prompt of the
W2K machine, only the files with an extension are listed. The command "dir"
on the same directory shows all files (with and without extension).

--------------------------
This is a extract of the W2K snoop. The client (fester) is browsing the
directory.

205 0.00218 fester -> einstein NFS C LOOKUP3 FH=61EE .
206 0.00021 einstein -> fester NFS R LOOKUP3 OK FH=61EE
207 0.00115 fester -> einstein NFS C LOOKUP3 FH=61EE ..
208 0.00021 einstein -> fester NFS R LOOKUP3 OK FH=61F2
209 0.00217 fester -> einstein NFS C LOOKUP3 FH=61EE ammodd00.
210 0.00020 einstein -> fester NFS R LOOKUP3 OK FH=61AA
211 0.00110 fester -> einstein NFS C LOOKUP3 FH=61EE ammodf00.
212 0.00021 einstein -> fester NFS R LOOKUP3 OK FH=619E
213 0.00217 fester -> einstein NFS C LOOKUP3 FH=61EE ammodf00.eng
--------------------------
Same snoop. Here I tried to open the file "ammodf00" in notepad. While
browsing the directory the server send the filename "ammodf00.".

339 2.82046 fester -> einstein NFS C LOOKUP3 FH=61EE ammodf00
340 0.00050 einstein -> fester NFS R LOOKUP3 No such file or directory
341 0.00198 fester -> einstein NFS C GETATTR3 FH=61EE
342 0.00018 einstein -> fester NFS R GETATTR3 OK
343 0.01467 fester -> einstein NFS C GETATTR3 FH=61F2
344 0.00017 einstein -> fester NFS R GETATTR3 OK
--------------------------

----------------------
This is a snoop of fileaccess from a Win95 client. The filenames do not end
with a dot.

44 0.21366 dvu209361 -> einstein NFS C LOOKUP3 FH=61F2 acodp
45 0.00045 einstein -> dvu209361 NFS R LOOKUP3 OK FH=61E2
46 0.00128 dvu209361 -> einstein NFS C READDIRPLUS3 FH=61E2 Cookie=0
for 4096/4096
47 0.00144 einstein -> dvu209361 NFS R READDIRPLUS3 OK 9+ entries
(incomplete)
48 0.00006 einstein -> dvu209361 TCP D=1446 S=2049 Ack=25027261
Seq=4032797325 Len=1460 Win=8760
49 0.00005 einstein -> dvu209361 TCP D=1446 S=2049 Ack=25027261
Seq=4032798785 Len=1136 Win=8760
50 0.00416 dvu209361 -> einstein TCP D=2049 S=1446 Ack=4032797325
Seq=25027261 Len=0 Win=8760
51 0.00115 dvu209361 -> einstein TCP D=2049 S=1446 Ack=4032799921
Seq=25027261 Len=0 Win=8760
52 0.00073 dvu209361 -> einstein NFS C LOOKUP3 FH=61F2 acodp
53 0.00025 einstein -> dvu209361 NFS R LOOKUP3 OK FH=61E2
54 0.00326 dvu209361 -> einstein NFS C READDIRPLUS3 FH=61E2
Cookie=1056 for 4096/4096
55 0.00106 einstein -> dvu209361 NFS R READDIRPLUS3 OK 9+ entries
(incomplete)
56 0.00007 einstein -> dvu209361 TCP D=1446 S=2049 Ack=25027521
Seq=4032801625 Len=1460 Win=8760
57 0.00005 einstein -> dvu209361 TCP D=1446 S=2049 Ack=25027521
Seq=4032803085 Len=1152 Win=8760
58 0.00492 dvu209361 -> einstein TCP D=2049 S=1446 Ack=4032801625
Seq=25027521 Len=0 Win=8760
59 0.00009 dvu209361 -> einstein TCP D=2049 S=1446 Ack=4032804237
Seq=25027521 Len=0 Win=8760
60 0.00257 dvu209361 -> einstein NFS C READDIRPLUS3 FH=61E2
Cookie=2140 for 4096/4096
61 0.00047 einstein -> dvu209361 NFS R READDIRPLUS3 OK 5 entries (No
more)
62 0.00463 dvu209361 -> einstein NFS C LOOKUP3 FH=61F2 .
63 0.00023 einstein -> dvu209361 NFS R LOOKUP3 OK FH=61F2
64 0.00118 dvu209361 -> einstein NFS C FSSTAT3 FH=61F2
65 0.00022 einstein -> dvu209361 NFS R FSSTAT3 OK
---------------------------

Ragards, Marc

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Previous message: Avery, Troy A: "Intermittent error:"
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