But even in the log without a floppy drive, the kernel detects one:
[ 2.266143] Floppy drive(s): fd0 is 1.44M
There are some differences between the "dmesg without" (-) and "dmesg
with" (+) logs:
-end_request: I/O error, dev fd0, sector 0
+EXT3-fs (fd0): error: can't find ext3 filesystem on dev fd0.
+EXT4-fs (fd0): VFS: Can't find ext4 filesystem
+FAT-fs (fd0): bogus number of reserved sectors
+FAT-fs (fd0): Can't find a valid FAT filesystem
Which mostly confirm that the floppy isn't working properly in the first
case.
udev sees *exactly* the same devices in both cases:
$ diff -u <(grep -v USEC_INITIALIZED export_without.txt) <(grep -v
USEC_INITIALIZED export_with.txt)
is empty.
P: /devices/platform/floppy.0/block/fd0
N: fd0
E: DEVNAME=/dev/fd0
E: DEVPATH=/devices/platform/floppy.0/block/fd0
E: DEVTYPE=disk
E: ID_DRIVE_FLOPPY=1
E: MAJOR=2
E: MINOR=0
E: SUBSYSTEM=block
E: UDEV_LOG=3
E: UDISKS_PRESENTATION_NOPOLICY=1
E: USEC_INITIALIZED=27196738
So this seems to be mostly a VMWare bug that even if you configure
without a floppy drive, it still emulates a floppy controller without
any drive attached. Unfortunately there is very little that we can do in
userspace to work around this; floppies come from an age where detailled
automatic hardware detection was still not existant :( As soon as you
try to probe a floppy in this case, you will get 30 second
uninterruptible kernel hangs, so we must not try to touch floppies
unless the user explicitly tries to mount one.
** Summary changed:
- Quantal Attempts To Mount Non-Existent Floppy Drive
+ VMWare exports a floppy controller, resulting in a phantom floppy drive.
** Changed in: udisks2 (Ubuntu)
Status: Incomplete => Invalid
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https://bugs.launchpad.net/bugs/1054414
Title:
VMWare exports a floppy controller, resulting in a phantom floppy
drive.
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