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- Newsgroups: comp.unix.ultrix
- Path: sparky!uunet!decwrl!pa.dec.com!decprl!decprl!boyd
- From: boyd@prl.dec.com (Boyd Roberts)
- Subject: Re: CD-ROM is really a pseudoterminal??
- Message-ID: <1992Nov12.135412.18066@prl.dec.com>
- Keywords: Gak! Ugh! Pfui!
- Sender: news@prl.dec.com (USENET News System)
- Nntp-Posting-Host: prl313.prl.dec.com
- Organization: Digital Equipment Corporation - Paris Research Laboratory
- References: <5435@daily-planet.concordia.ca>
- Date: Thu, 12 Nov 1992 13:54:12 GMT
- Lines: 43
-
- In article <5435@daily-planet.concordia.ca>, smw@alcor.concordia.ca ( Steven Winikoff ) writes:
- >
- > "ufs_mount: /dev/rz5c on /CD: Mount device busy"
-
- Mount is telling you that /CD is busy, not /dev/rz5c. Check out who's
- using /CD.
-
- > After looking around for a while, I finally remembered that I have a
- > copy of pff (bless you, Dan Bernstein!). So:
- >
- > # pff /dev/rz5c
- >
- > After a second or so, pff comes back with
- >
- > CMD PID UID FD D FLAGS TYPE INODE FS
- > telnetd.gw 25019 0 4 I rw-n----- chr dev (/dev/ptyra)
- >
- > Huh? What's going on here?
- >
- > Sure enough, I looked in /dev:
- >
- > # ls -Flg /dev/rz5c /dev/ptyra
- >
- > Imagine my surprise when I saw this:
- >
- > crw-rw-rw- 1 root system 21, 42 Nov 11 17:28 /dev/ptyra
- > brw------- 1 root system 21, 42 Jun 9 17:45 /dev/rz5c
-
- Block and character device namespaces are distinct. Either pff has
- a bug or you invoked it incorrectly.
-
- > (Actually there probably won't *be* a conclusion unless someone who
- > knows more than I do is willing to help me out. Aw, come on.
- > Please?)
- >
-
- Either something's already mounted on /CD or there's a process in /CD.
- Why not make a new directory and mount it on that, and worry about /CD later?
-
-
- Boyd Roberts boyd@prl.dec.com
-
- ``Not only is UNIX dead, it's starting to smell really bad.'' -- Rob Pike
-