Skip site navigation (1)Skip section navigation (2)
Date:      Sat, 31 Jan 1998 10:19:42 +1030
From:      Greg Lehey <grog@lemis.com>
To:        FreeBSD Hackers <hackers@FreeBSD.ORG>
Subject:   Non-existent slice open succeeds: bug or feature?
Message-ID:  <19980131101942.32279@lemis.com>

next in thread | raw e-mail | index | archive | help
I've just discovered a strangeness.  I have a disk /dev/sd1
partitioned like this:

8 partitions:
#        size   offset    fstype   [fsize bsize bps/cpg]
  c:  1173459        0    unused        0     0         # (Cyl.    0 - 1210)
  h:  1173459        0    unused        0     0         # (Cyl.    0 - 1210)

If I perform the following operation:

# dd if=/dev/sd1e
0+0 records in
0+0 records out
0 bytes transferred in 0.000759 secs (0 bytes/sec)

the open obviously succeeds.  Why?  It loos as if sd1e is a slice of
length 0, but that's not the same thing as not existing.

Greg



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?19980131101942.32279>