HOWTO: build qemu from cvs (incl. accelerator)

Message

Debentoo_Gao · Post by **Debentoo_Gao** » Sun Mar 13, 2005 4:02 am

pussi wrote:I just realized that it don't work with me eiter

I know it should work as it reads in Qemu acceleration module manual, but for some reason it don't.

It's so strange that it works now after I reemerge qemu-cvs

pussi · Post by **pussi** » Sun Mar 13, 2005 9:26 am

Debentoo_Gao wrote:
pussi wrote:I just realized that it don't work with me eiter :oops: :oops:

I know it should work as it reads in Qemu acceleration module manual, but for some reason it don't. :(
It's so strange that it works now after I reemerge qemu-cvs :) :) :)

Yeah, but you have to recompile qemu every time you reboot your system to make it work again. :P

jdoe · Post by **jdoe** » Sun Mar 13, 2005 4:19 pm

works for me, replacing

mknod /dev/kqemu c 250 0

with

mknod /dev/kqemu c 241 0

just ls -l /dev/kqemu after emerged it...

crw-rw-rw- 1 root root 241, 0 Mar 13 16:46 /dev/kqemu

see 241 not 250.

John

pussi · Post by **pussi** » Sun Mar 13, 2005 5:51 pm

Thanks I'll try that. :)
The manual said 250 so I assumed that it would be correct :P

Debentoo_Gao · Post by **Debentoo_Gao** » Wed Mar 16, 2005 4:14 pm

jdoe wrote:works for me, replacing

mknod /dev/kqemu c 250 0

with

mknod /dev/kqemu c 241 0

just ls -l /dev/kqemu after emerged it...

crw-rw-rw- 1 root root 241, 0 Mar 13 16:46 /dev/kqemu

see 241 not 250.

John

Thanks

It works now:)

destr0yr · Post by **destr0yr** » Thu Mar 17, 2005 8:41 am

... maybe i'm missing something (or just overly tired), but when i run "qemu -user-net -m 384 -hda myimage.img -cdrom /dev/cdrom1 -boot d", not much appears to be happening. my cpu jumps to 99% and it just sits there.. am i supposed to do something?

jdoe · Post by **jdoe** » Thu Mar 17, 2005 11:32 am

now, with recent cvs versions, I have this problem too...
cpu at 100% and nothing happening...

StringCheesian · Post by **StringCheesian** » Thu Mar 17, 2005 5:30 pm

I got this:

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 * Copying qemu from /mnt/store/gentoo/distfiles/cvs-src ...
 * CVS module qemu is now in /var/tmp/portage/qemu-cvs-0.0.1/work
>>> Unpacking kqemu-0.6.2-1.tar.gz to /var/tmp/portage/qemu-cvs-0.0.1/work/qemu
patching file kqemu/install.sh
patching file kqemu/kqemu.h
>>> Source unpacked.
--------------------------- ACCESS VIOLATION SUMMARY ---------------------------
LOG FILE = "/tmp/sandbox-app-emulation_-_qemu-cvs-0.0.1-30208.log"

mkdir:     /root/.ssh
--------------------------------------------------------------------------------

Boris27 · Post by **Boris27** » Sun Mar 20, 2005 9:05 pm

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>>> emerge (1 of 1) app-emulation/qemu-cvs-0.0.1 to /
>>> md5 src_uri ;-) kqemu-0.6.2-1.tar.gz
>>> Unpacking source...
 * Fetching CVS module qemu into /usr/portage/distfiles/cvs-src ...
 * Warning: The SSH host key of the remote server will not be verified.
 * A temporary known hosts list will be used.
 * Running  cvs -q -f -z4 -d ":ext:anoncvs@savannah.gnu.org:/cvsroot/qemu" checkout  qemu
Warning: Permanently added 'savannah.gnu.org,199.232.41.3' (RSA) to the list of known hosts.
cvs [checkout aborted]: cannot make directory qemu: Permission denied

!!! ERROR: app-emulation/qemu-cvs-0.0.1 failed.
!!! Function cvs_fetch, Line 447, Exitcode 1
!!! cvs checkout command failed
!!! If you need support, post the topmost build error, NOT this status message.

What gives?

EDIT: Nevermind. Don't mount your distfiles from a samba share... That doesnt work....

djm · Post by **djm** » Mon Mar 21, 2005 7:26 pm

this done properly (no offence):

http://dev.gentoo.org/~lu_zero/overlay/qemu.tar.bz2

edit: fixed the url tags

destr0yr · Post by **destr0yr** » Tue Mar 22, 2005 4:48 am

djm wrote:this done properly (no offence):

[url][http://dev.gentoo.org/~lu_zero/overlay/qemu.tar.bz2/url]

sweet. this actually does something!

pussi · Post by **pussi** » Thu Mar 24, 2005 3:14 pm

StringCheesian wrote:I got this:

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 * Copying qemu from /mnt/store/gentoo/distfiles/cvs-src ...
 * CVS module qemu is now in /var/tmp/portage/qemu-cvs-0.0.1/work
>>> Unpacking kqemu-0.6.2-1.tar.gz to /var/tmp/portage/qemu-cvs-0.0.1/work/qemu
patching file kqemu/install.sh
patching file kqemu/kqemu.h
>>> Source unpacked.
--------------------------- ACCESS VIOLATION SUMMARY ---------------------------
LOG FILE = "/tmp/sandbox-app-emulation_-_qemu-cvs-0.0.1-30208.log"

mkdir:     /root/.ssh
--------------------------------------------------------------------------------

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mkdir  /root/.ssh

and try again :)

StringCheesian · Post by **StringCheesian** » Fri Mar 25, 2005 1:59 am

djm wrote:this done properly (no offence):

http://dev.gentoo.org/~lu_zero/overlay/qemu.tar.bz2

Doesn't work here:

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/var/tmp/portage/qemu-0.6.2.20050309/temp/ccJPO2ri.s: Assembler messages:
/var/tmp/portage/qemu-0.6.2.20050309/temp/ccJPO2ri.s:45640: Error: unknown pseudo-op: `.l'
/var/tmp/portage/qemu-0.6.2.20050309/temp/ccJPO2ri.s:45640: Error: invalid character (0xfffffffb) in mnemonic
make[1]: *** [translate.o] Error 1
make[1]: Leaving directory `/var/tmp/portage/qemu-0.6.2.20050309/work/qemu/ppc-user'

USE flags: -debug +kqemu +sdl +softmmu
gcc 3.4.3.20050110
binutils 2.15.92.0.2-r6

pussi wrote:
Code: Select all
mkdir  /root/.ssh
and try again

Thanks, I'll try the first ebuild again.

EDIT:

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/var/tmp/portage/qemu-cvs-0.0.1/temp/cc0kSyAd.s: Assembler messages:
/var/tmp/portage/qemu-cvs-0.0.1/temp/cc0kSyAd.s:30422: Error: bad expression
/var/tmp/portage/qemu-cvs-0.0.1/temp/cc0kSyAd.s:30422: Error: junk at end of line, first unrecognized character is `s'
/var/tmp/portage/qemu-cvs-0.0.1/temp/cc0kSyAd.s:44531: Error: junk at end of line, first unrecognized character valued 0x16
make[1]: *** [translate.o] Error 1
make[1]: Leaving directory `/var/tmp/portage/qemu-cvs-0.0.1/work/qemu/ppc-user'
make: *** [all] Error 1

djm · Post by **djm** » Fri Mar 25, 2005 11:40 am

If you're having trouble with lu_zero's ebuild, then you should go to http://bugs.gentoo.org/show_bug.cgi?id=82885 and report it

StringCheesian · Post by **StringCheesian** » Fri Mar 25, 2005 2:37 pm

djm wrote:If you're having trouble with lu_zero's ebuild, then you should go to http://bugs.gentoo.org/show_bug.cgi?id=82885 and report it

I'm starting to think it might be something wrong with my system.

EDIT: Yep, it was. I reinstalled my system and now it installs and runs fine with lu_zero's ebuild (I haven't tried the first one), but Win98 won't run.

zeek · Post by **zeek** » Sat Mar 26, 2005 12:17 am

notz wrote:goto to your portage overlay ...

Great instructions!

AngryLlama · Post by **AngryLlama** » Sat Apr 02, 2005 4:35 pm

I can't get the qemu-cvs ebuild to work. I am running it in my 32-bit chroot since running the standard ebuild in my 64bit enviroment would cause the emulator to freeze in certain circumstances. I'm not sure what it is.. but in 64bit the Windows 2000 installer throws page faults when I do things like move the window or click next after typing in the cd-key.

Here is what I did:

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wget ftp://notz.homelinux.com/qemu-cvs.tar.gz
tar -xzf qemu-cvs.tar.gz
echo "app-emulation/qemu-cvs ~x86" >> /etc/portage/package.keywords              
echo "app-emulation/qemu-cvs kqemu" >> /etc/portage/package.use                  
emerge qemu-cvs

The emerge proceed for a short time then I get this error:

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make[1]: Leaving directory `/var/tmp/portage/qemu-cvs-0.0.1/work/qemu/x86_64-softmmu'
make -C kqemu
make[1]: Entering directory `/var/tmp/portage/qemu-cvs-0.0.1/work/qemu/kqemu'
make -C /usr/src/linux SUBDIRS=`pwd` modules
make[2]: Entering directory `/usr/src/linux-2.4.28-gentoo-r5'
gcc -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer -o scripts/split-includescripts/split-include.c
ACCESS DENIED  open_wr:   /usr/src/linux-2.4.28-gentoo-r5/scripts/split-include
/usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.5/../../../../i686-pc-linux-gnu/bin/ld: cannot open output file scripts/split-include: Permission denied
collect2: ld returned 1 exit status
ACCESS DENIED  unlink:    /usr/src/linux-2.4.28-gentoo-r5/scripts/split-include
make[2]: *** [scripts/split-include] Error 1
make[2]: Leaving directory `/usr/src/linux-2.4.28-gentoo-r5'
make[1]: *** [kqemu.o] Error 2
make[1]: Leaving directory `/var/tmp/portage/qemu-cvs-0.0.1/work/qemu/kqemu'
make: *** [all] Error 2

!!! ERROR: app-emulation/qemu-cvs-0.0.1 failed.
!!! Function src_compile, Line 48, Exitcode 2
!!! make failed
!!! If you need support, post the topmost build error, NOT this status message.

--------------------------- ACCESS VIOLATION SUMMARY ---------------------------
LOG FILE = "/tmp/sandbox-app-emulation_-_qemu-cvs-0.0.1-29477.log"

open_wr:   /usr/src/linux-2.4.28-gentoo-r5/scripts/split-include
unlink:    /usr/src/linux-2.4.28-gentoo-r5/scripts/split-include
--------------------------------------------------------------------------------

I don't use my chroot often so it only has 2.4.28 installed; My real system has 2.6.11-gentoo-r3.

When I emerge qemu-cvs in my main 64bit enviroment it compiles fine, /dev/kqemu is created. However, the kqemu module cannot be found anywhere. Any ideas? I added kqemu to my packages.use.

Thanks!

zybl0re · Post by **zybl0re** » Sat Apr 16, 2005 12:36 am

Okay, I'm not sure what's going on here, but I'm following the directions of the thread poster exactly (as far as I can tell), but when it get to the emerge step, I get

Code: Select all

tinomen portage # emerge qemu-cvs
Calculating dependencies   
emerge: there are no ebuilds to satisfy "qemu-cvs".

the tar extracted to /usr/local/portage... what's going on? I'm sure this must be some simple little thing I'm overlooking.

edit: okay, a dude ssh'd into my machine and helped me out. I needed to add /usr/local/portage to PORTDIR_OVERLAY in make.conf
qemu-cvs is compiling right now.

Fr0d083 · Post by **Fr0d083** » Thu Apr 21, 2005 1:03 am

it seems that the tarball for the ebuild is no longer on the ftp server

does anyone know if it is hosted anywhere else? I checked gentoo-portage and they don't have it either.

I really would like to get this installed so I can dump VMWare.

Fr0d083 · Post by **Fr0d083** » Fri Apr 22, 2005 4:47 pm

djm · Post by **djm** » Fri Apr 22, 2005 4:58 pm

use the one on http://dev.gentoo.org/~lu_zero that I linked to earlier in the thread

bravecobra · Post by **bravecobra** » Sat Apr 23, 2005 10:32 pm

The permissions on /dev/kqemu get reset by udev on my machine.

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zeus gentoo-qemu # /etc/init.d/kqemu stop
 * Unloading kqemu module...                                            [ ok ]
zeus gentoo-qemu # /etc/init.d/kqemu start
 * Loading kqemu module...
 * Creating /dev/kqemu...                                                  [ ok ]
zeus gentoo-qemu # ls -al /dev/|grep kqemu
crw-rw-rw-   1 root  root    241,   0 Apr 24 00:17 kqemu
zeus gentoo-qemu # ls -al /dev/|grep kqemu
crw-rw----   1 root  root    250,   0 Apr 24 00:17 kqemu

Even when creating a new device with 241, it gets reset by udev to 250 and has its permissions reset to 0660 (udev uses the default mode 0660 as set in /etc/udev/udev.conf).
So an additional udev permission rule is needed. So I added /etc/udev/permissions.d/10-local.permissions with the following content:

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kqemu:root:root:0666

That kept the permissions of /dev/kqemu on 0666.
Hope this helps the udev users out there.

bravecobra · Post by **bravecobra** » Mon Apr 25, 2005 7:57 am

Following the guide as presented in my blog (http://blog.bravecobra.com/index.php/li ... _with_qemu), I came up with the following startup script. You'll also need the following packages

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#emerge vde iptables

Another requirement would be to enable the tun device in your kernel (vde uses that to setup a private networking device).

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Device drivers -> Networking support -> Network device support  -> [*] Universal TUN/TAP device driver support

When all that is enabled, you can start using the following startup script.

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#!/sbin/runscript

udev() {
   # Create the KQEMU device if using udev
    if [ -a /dev/kqemu ] ; then
        einfo "        /dev/kqemu exists"
    else
        ebegin "        Creating /dev/kqemu"
        mknod /dev/kqemu c 241 0
        chmod 666 /dev/kqemu
    fi
}

start() {
    ebegin "Starting kqemu"
        ebegin "        Loading kqemu module"
            /sbin/modprobe kqemu
            udev
        eend $?
        ebegin "        Starting up virtual network"
            vde_switch -tap tun -daemon
            ifconfig tun 192.168.254.254
            chmod 666 /tmp/vde.ctl
            echo "1" > /proc/sys/net/ipv4/ip_forward
            iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
        eend $?
    eend $?
}

stop() {
    ebegin "Stopping kqeum"
        ebegin "        Unloading kqemu module"
            /sbin/modprobe -r kqemu
        eend $?
        ebegin "        Stopping virtual network"
            killall -9 vde_switch
            rm /tmp/vde.ctl
        eend $?
    eend $?
}

Of course I could start finetuning that by having the virtual TUN ip set in /etc/conf.d/kqemu etc, but you'll get the idea. Don't forget the above udev permissions rule

.

bravecobra · Post by **bravecobra** » Mon Apr 25, 2005 8:13 am

destr0yr wrote:... maybe i'm missing something (or just overly tired), but when i run "qemu -user-net -m 384 -hda myimage.img -cdrom /dev/cdrom1 -boot d", not much appears to be happening. my cpu jumps to 99% and it just sits there.. am i supposed to do something?

Did you emerge with the softmmu flag? Otherwise it's quite normal nothing happens.

dobh · Post by **dobh** » Mon Apr 25, 2005 10:38 am

Hi,

I moved from qemu-cvs to lu_zeros ebuild.

When I try to emerge it, the following error appears:

>>> Downloading http://dev.gentoo.org/~lu_zero/distfile ... 09.tar.bz2
--13:26:37-- http://dev.gentoo.org/%7Elu_zero/distfi ... 09.tar.bz2
=> `/usr/portage/distfiles/qemu-0.6.2.20050309.tar.bz2'
Resolving dev.gentoo.org... 134.68.220.30
Connecting to dev.gentoo.org[134.68.220.30]:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 974,674 [application/x-tar]

100%[===============================================================================>] 974,674 426.44K/s

13:26:40 (425.32 KB/s) - `/usr/portage/distfiles/qemu-0.6.2.20050309.tar.bz2' saved [974674/974674]

!!! Security Violation: A file exists that is not in the manifest.
!!! File: files/kqemu-sysfs.patch

What shoud I do?

HOWTO: build qemu from cvs (incl. accelerator)

Re: HOWTO: build qemu from cvs (incl. accelerator)

Humm.. Won't work

Security Violation: A file exists that is not in the manifes