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Date: Tue, 8 Dec 2009 12:41:45 -0500
From: Jeff Blank <jb000003@mr-happy.com>
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Subject: Dell PowerEdge Virtual Media
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Hi,

I'm having a little trouble using the "virtual media" function of
Dell's PowerEdge R-series (R710 in this case) iDRAC6 under FreeBSD
(7.1, 8.0).  This is presented as /dev/cd0, a USB/"SCSI" device, I
guess.  This is in the dmesg buffer when I boot up the existing 7.1
installation with the virtual optical drive mapped to the 8.0-RELEASE
amd64 DVD image:

umass0: <Avocent USB Composite Device-1, class 0/0, rev 2.00/0.00, addr 2> on uhub6
[...]
cd0 at umass-sim0 bus 0 target 0 lun 0
cd0: <iDRAC Virtual CD 0323> Removable CD-ROM SCSI-0 device 
cd0: 40.000MB/s transfers
cd0: cd present [1058105 x 2048 byte records]
GEOM_LABEL: Label for provider cd0 is iso9660/FreeBSD_Install.

However,
# mount -t cd9660 /dev/cd0 /mnt
mount_cd9660: /dev/cd0: Invalid argument

When I boot from the DVD image via this virtual device, sysinstall
comes up and works fine except for the fixit shell, at which point it
wants me to insert a CD/DVD because it encounters an error mounting
acd0 (and would presumably have the same problems if I attempted a
fresh install).  I have 'boot -v' output from such a boot attempt at
http://web.mr-happy.com/mlf/8.0-bootv-dell-poweredge-r710-virtualmedia.txt
in case it's useful.

Please let me know what other information I can provide, and thank you
for any help.

Jeff