virt April 2009

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33 participants
72 discussions

question - installation speed F11 Beta VM on F11 Beta physical
by mike.hinz＠yr20.com 16 Apr '09

16 Apr '09

Hi, I have an F11 Beta server, fully updated to the latest and greatest from rawhide. I've noticed that whenever I try to install F11 beta in a VM, it installs really, really slowly, may 2 orders of magnitude slower than on the phyical machine. The physical server is a single processor quad-core Xeon with 8GB of RAM. I've set the VM to have 4GB RAM w/2 cpus. It appears that the installation seems to be occcuring from the network versus the DVD. Why would this be and how can I speed up this incredibly slow process? Thanks in advance for any help on this! Regards, Mike Hinz President YR20 1718 Fry Road, Suite 440 Houston, TX 77084 mike.hinz(a)yr20.com 832-225-1293 (o) 713-594-3095 (m) 832-550-2657 (f)

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Re: [fedora-virt] question - installation speed F11 Beta VM on F11 Beta physical
by mike.hinz＠yr20.com 16 Apr '09

16 Apr '09

Mark, I just wanted to follow up on this thread. Do you have any clue as to what is going on with the very slow install? It appears to me that my config is correct. Any light you can shed on this issue would be most appreciated. Thanks. Regards, Mike Hinz President YR20 1718 Fry Road, Suite 440 Houston, TX 77084 mike.hinz(a)yr20.com 832-225-1293 (o) 713-594-3095 (m) 832-550-2657 (f)

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how to get rid of a hung VM install?
by Robert P. J. Day 15 Apr '09

15 Apr '09

as a test to warm up for a virt seminar i still plan on giving, i tried to install f11 x86_64 inside of f11 x86_64. i got as far as the graphical fedora screen, at which point the install hung. and now, i can't get rid of that VM. since i figure i pooched the install anyway (probably should have selected the basic video driver), i'm trying to simply delete any traces of that VM, but i can't. the VMM "Edit"'s dropdown menu has the "Delete Virtual Machine" selection greyed out. no matter what i do, when i restart the VMM, there's my "f1164" VM, no matter how hard i try to get rid of it. so what are my options? rday -- p.s. i did the above with no loaded HW extension modules, just to see the effect. not sure if that makes a difference. ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Annoying Kernel Pedantry. Web page: http://crashcourse.ca Linked In: http://www.linkedin.com/in/rpjday Twitter: http://twitter.com/rpjday ========================================================================

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qemu user emulation test package, and is GUEST_BASE broken?
by Robert P. J. Day 14 Apr '09

14 Apr '09

moving on, i'm continuing to document QEMU on f11 here: http://www.crashcourse.ca/wiki/index.php/QEMU_on_Fedora_11 and i have (unsurprisingly) a couple of questions. when i first started playing with QEMU a while back, i found the user emulation test tarball here: http://www.nongnu.org/qemu/linux-user-test-0.3.tar.gz really handy to see what worked and what didn't. is there any chance of bundling up something like that and turning it into another fedora QEMU package? maybe "qemu-user-tests" or something like that, if there are no licensing restrictions? i think a number of beginners would find that useful. (the test script in that tarball, "qemu-linux-user.sh", could be simplified tremendously, of course.) and, more technically, the following attempt to test user emulation for ARM (and ARMEB) using that test tarball fails thusly (running as a non-root user): $ qemu-arm -L gnemul/qemu-arm arm/ls mmap: Permission denied. $ apparently, this is because ARM tries to mmap to *very* low memory, and the /proc/sys/vm/mmap_min_addr file is, by default, set to 65536. the alleged solution is explained here: http://archive.netbsd.se/?ml=qemu-devel&a=2008-04&t=7231855 to set the environment variable GUEST_BASE to 65536. now, that might have worked once upon a time, but it doesn't seem to work now. on the other hand, if you have root access, you can just: # echo 0 > /proc/sys/vm/mmap_min_addr and things suddenly work just fine. should GUEST_BASE work? or is one reduced to needing root access to change that setting on a global basis? and once i know the answer, i'll add it to my wiki page. cuz that's just the kind of guy i am. :-) rday -- ======================================================================== Robert P. J. Day Waterloo, Ontario, CANADA Linux Consulting, Training and Annoying Kernel Pedantry. http://crashcourse.ca http://www.linkedin.com/in/rpjday ========================================================================

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Re: [fedora-virt] ANNOUNCE: Augeas support added to libguestfs
by Richard W.M. Jones 13 Apr '09

13 Apr '09

On Mon, Apr 13, 2009 at 09:15:43PM +0200, Ján ONDREJ (SAL) wrote: > In [6]: g.launch() > qemu: loading initrd (0x13476cf bytes) at 0x16ca8000 The first problem is you need to call g.wait_ready() after g.launch () and before running any other commands. The guestfs(3) manual page is informative on this subject. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/

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Re: [fedora-virt] ANNOUNCE: Augeas support added to libguestfs
by Richard W.M. Jones 13 Apr '09

13 Apr '09

On Mon, Apr 13, 2009 at 08:36:02PM +0200, Ján ONDREJ (SAL) wrote: > Does not compile: > > ocamlfind ocamlopt -c guestfs.ml > ocamlfind ocamlopt -cclib -L../src/.libs -I . unix.cmxa mlguestfs.cmxa > t/guestfs_005_load.ml -o t/guestfs_005_load > Cannot find file mlguestfs.cmxa Looks like a missing dependency. I'll push something to git in a moment. Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://et.redhat.com/~rjones/virt-df/

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Re: [fedora-virt] ANNOUNCE: Augeas support added to libguestfs
by Richard W.M. Jones 13 Apr '09

13 Apr '09

On Sun, Apr 12, 2009 at 08:02:19PM +0200, Ján ONDREJ (SAL) wrote: > I'm not a good C programmer. But if anybody need to use libguestfs from > python, I can write interface between your lib and python (using > python-ctypes). I have a similar project for clamav library for sagator. We'd greatly prefer an auto-generated interface, which is how guestfish, the Perl bindings and the OCaml bindings, and all the documentation are done. (And is also much easier to do and maintain). See: http://git.et.redhat.com/?p=libguestfs.git;a=blob;f=HACKING;hb=HEAD http://git.et.redhat.com/?p=libguestfs.git;a=blob;f=src/generator.ml;hb=HEAD http://git.et.redhat.com/?p=libguestfs.git;a=commitdiff;h=f4299f7ea55c4bbc9… http://git.et.redhat.com/?p=libguestfs.git;a=commitdiff;h=c168ce1c91c8f4f61… Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://et.redhat.com/~rjones/virt-top

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Re: [augeas-devel] Re: [fedora-virt] ANNOUNCE: Augeas support added to libguestfs
by Richard W.M. Jones 13 Apr '09

13 Apr '09

On Sun, Apr 12, 2009 at 07:58:22PM +0200, Ján ONDREJ (SAL) wrote: > Another error (writing privatelly to do not flood virt mailinglist): > > > After installing augeas-devel from updates-testing, rpmbuild fails after > > compilation: > > After disabling check section, some files are not found: > > RPM build errors: > File not found: > /usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/guestfs > File not found by glob: > //usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/guestfs/*.a > File not found by glob: > /usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/guestfs/*.cmxa > File not found by glob: > //usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/guestfs/*.cmx > File not found by glob: > /usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/guestfs/*.mli > File not found by glob: > //usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/stublibs/*.so > File not found by glob: > /usr/src/rpmbuild/BUILDROOT/libguestfs-0.8-1.fc10.i386/usr/lib/ocaml/stublibs/*.so.owner Seems like you need ocaml-findlib-devel (for the OCaml bindings). See: http://git.et.redhat.com/?p=libguestfs.git;a=commitdiff;h=f1a10c6285cca30f8… Rich. -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw

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[PATCH] FAKECHROOT_CMD_SUBST patch (was: Re: Other fakechroot changes (was: Re: [PATCH] fakechroot doesn't handle chroot relative paths correctly))
by Richard W.M. Jones 12 Apr '09

12 Apr '09

Piotr, I've rebased this patch to the latest version of fakechroot from SVN. I wonder if you'd consider it? It passes all tests, and we now use it extensively in libguestfs[1] & febootstrap[2]. Original description: On Mon, Mar 30, 2009 at 06:54:43PM +0100, Richard W.M. Jones wrote: > Here's a patch that adds support for FAKECHROOT_CMD_SUBST. We use it > like this: > > FAKECHROOT_CMD_SUBST=/sbin/ldconfig=/bin/true fakechroot ... > > The substituted command runs outside the chroot, so in the above case > it's running the system /bin/true. > > Also includes an extra test and documentation. Signed-off-by: Richard W.M. Jones <rjones(a)redhat.com> Rich. [1] http://et.redhat.com/~rjones/libguestfs/ [2] http://et.redhat.com/~rjones/febootstrap/ -- Richard Jones, Emerging Technologies, Red Hat http://et.redhat.com/~rjones Read my programming blog: http://rwmj.wordpress.com Fedora now supports 75 OCaml packages (the OPEN alternative to F#) http://cocan.org/getting_started_with_ocaml_on_red_hat_and_fedora

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clarifying the fedoraproject wiki "qemu/kvm" features page
by Robert P. J. Day 09 Apr '09

09 Apr '09

i'd like to clarify a couple things here, if i might: https://fedoraproject.org/wiki/Features/KVM_and_QEMU_merge first, given that that page refers to being 100% done WRT f11, should it represent *exactly* what i see on my current f11 beta system? as in, no outstanding issues? next, under "Detailed Description", point 5: "The kvm package is obsoleted by qemu-kvm." can i assume that "qemu-kvm" is a typo as there appears to be no such package? what *should* that say? perhaps "qemu-kvm-tools?" i have a few more questions about the merging of qemu and kvm but i'm going to have to think about those for a few more minutes. rday -- ======================================================================== Robert P. J. Day Linux Consulting, Training and Annoying Kernel Pedantry: Have classroom, will lecture. http://crashcourse.ca Waterloo, Ontario, CANADA ========================================================================

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virt April 2009