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[Qemu-discuss] Host drive basics.

From: Peter Easthope
Subject: [Qemu-discuss] Host drive basics.
Date: Mon, 17 Nov 2014 18:02:09 -0800
User-agent: SquirrelMail/1.5.2 [SVN]

From:   Dale R. Worley
Date:   Mon, 17 Nov 2014 10:38:29 -0500
> ... the -drive option will make *any* /dev/sd*
> look like an ordinary disk to the guest OS.

OK, here is a very simple exercise.

"‘-fda file’
You can use the host floppy by using ‘/dev/fd0’ as filename ..."

Therefore take any diskette which the bare PC can boot from and
try to boot the virtual machine from it.

Here fd0 twitches; then an error.
address@hidden:~$ sudo qemu-system-i386 -fda /dev/fd0 -vga std -boot a
qemu-system-i386: -fda /dev/fd0: could not open disk image /dev/fd0:
Input/output error

I/O error?  Why?  Certainly it is read/writable.

address@hidden:~$ ls -l /dev/fd0
brw-rw---T 1 root floppy 2, 0 Nov 17 16:44 /dev/fd0

Can anyone make the virtual machine boot from a real boot diskette?

Thanks,             ... Peter E.

Telephone 1 360 639 0202.  Bcc: peter at easthope.ca "http://carnot.yi.org/ "

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