Date: Mon, 9 Mar 2009 23:35:12 +0100 (CET) From: Juergen Lock <nox@jelal.kn-bremen.de> To: dougb@FreeBSD.org Cc: freebsd-emulation@FreeBSD.org, Gary Jennejohn <gary.jennejohn@freenet.de> Subject: Re: qemu 0.10.0 - cd/dvd drive access problems Message-ID: <200903092235.n29MZCFF014159@saturn.kn-bremen.de> In-Reply-To: <alpine.BSF.2.00.0903091404100.40723@ync.qbhto.arg> References: <49B46A29.7020500@FreeBSD.org> <20090309103706.0a44fb26@ernst.jennejohn.org>
next in thread | previous in thread | raw e-mail | index | archive | help
In article <alpine.BSF.2.00.0903091404100.40723@ync.qbhto.arg> you write: >On Mon, 9 Mar 2009, Gary Jennejohn wrote: > >> On Sun, 08 Mar 2009 18:00:25 -0700 >> Doug Barton <dougb@FreeBSD.org> wrote: >> >>> One of my main reasons for wanting to install qemu was to be able to >>> use Windows tools for things like archiving DVDs. Now that I have qemu >>> working pretty well for most things, I tried to start using it for >>> DVD/CD access and it's not working well at all. I installed XP via a >>> typical installation CD, so I thought I had it made in this area. :( >>> >>> I'm using '-cdrom /dev/acd0' the same way I did for the install. If >>> there is a disc in the drive when I start qemu I can "see" the disc, >>> and copy some small files from it. However trying to copy/read large >>> files (say, 1G) doesn't work at all. I get an error saying that sector >>> of the disc cannot be read (this is with known-good discs). I tried >>> with and without the cd-rom DMA compile-time OPTION, no luck. If I >>> remove the disc from the drive, or if there is no disc in the drive >>> when I start qemu, inserting one after it starts produces no results. >>> Every time I try to access the drive I get the "Please insert a disc >>> into drive D:" error message. >>> >>> I'm using a fairly up to date 8-current as the host, btw. >>> >>> >>> Any suggestions? >>> >> >> Do you have vfs_aio in your kernel or as a module? > >I'm running the aio module, which seems to incorporate the vfs_aio stuff, >yes. > (Not needed with qemu 0.10.0 anymore as already mentioned.) >> I've run openSUSE in qemu and used the DVD drive with no problems at >> all; I have vfs_aio in my kernel. > >Are you talking about 'options VFS_AIO'? > >> One thing I've noticed is that the DVD drive is locked and I can't open >> the drawer once qemu starts, even if there is no disc in the drive. >> Apparently openSUSE acceses the drive (i.e. locks it) even when it's >> empty. > >I forgot to mention this bit. If I click the eject menu option on the >CD/DVD in windows it doesn't actually eject it like native windows does, >but it does allow me to remove the disc manually. After that even if I do >reinsert a disc the windows guest doesn't "see" it. > Have you tried the mentioned `change ide1-cd0' in qemu's monitor? (This probably would benefit from scsi passthru as well...) HTH, Juergen
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200903092235.n29MZCFF014159>