GentooQEMUBuildBox - Revision history

Trickie: /* Advanced setup */

2008-10-23T09:34:50Z

‎Advanced setup

Kempelen: Category: -Technical, +Emulation

2008-09-13T21:54:28Z

Category: -Technical, +Emulation

Coolcat at 05:36, 5 September 2008

2008-09-05T05:36:51Z

Torindel at 11:17, 4 September 2008

2008-09-04T11:17:04Z

Torindel at 10:58, 4 September 2008

2008-09-04T10:58:42Z

Torindel at 10:58, 4 September 2008

2008-09-04T10:58:11Z

Torindel at 09:00, 4 September 2008

2008-09-04T09:00:05Z

Torindel: New page: == Read first == Gentoo, http://www.gentoo.org/doc/en/handbook/handbook-arm.xml == Needed things == unpatched QEMU from any normal distro Gentoo stage: http://torindel.sezamkowa.n...

2008-09-04T08:59:00Z

New page: == Read first == Gentoo, http://www.gentoo.org/doc/en/handbook/handbook-arm.xml == Needed things == *unpatched QEMU from any normal distro *Gentoo stage: http://torindel.sezamkowa.n...

New page

== Read first ==
[[Gentoo]], http://www.gentoo.org/doc/en/handbook/handbook-arm.xml

== Needed things ==

*unpatched QEMU from any normal distro
*Gentoo stage: http://torindel.sezamkowa.net/openmoko/armv4tl-softfloat-linux-gnueabi/~arm/
*Portage snapshot: look for mirror on: http://www.gentoo.org/main/en/mirrors2.xml and get snapshots/portage-DATE.tar.bz2
*Kernel and modules for generic qemu arm target e.g. http://pokylinux.org/releases/pinky-3.1/zImage-2.6.23-pinky-3.1-qemuarm.bin
*Tun/Tap module for localhost
*Iptables and modules for internet connection sharing on localhost

== Seting up with local hdd image ==

<pre>
dd if=/dev/zero of=qemuarm-0.rootfs.ext2 count=16777216
dd if=/dev/zero of=qemuarm-0.swapfs count=524288
losetup -f qemuarm-0.rootfs.ext2
mkfs.ext2 /dev/loop0
mount /dev/loop0 /mnt
tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /media/card
tar -xjpf /media/card/portage-*.tar.bz2 -C /media/card/usr
umount /mnt
mkswap qemuarm-0.swapfs
</pre>

== QEMU run scripts for local hdd image ==

run-qemu-1:
<pre>
#!/bin/bash

CURDIR="/somedirwithqemuscriptsandrootfsimage"
NUMBER=1

KERNEL="$CURDIR/zImage-2.6.23-pinky-3.1-qemuarm.bin"
ROOTFS="$CURDIR/qemuarm-$NUMBER.gentoo.ext2"
SWAPFS="$CURDIR/qemuarm-$NUMBER.swapfs"

qemu-system-arm -kernel $KERNEL -net nic,vlan=0 -net tap,vlan=0,ifname=tap$NUMBER,script=$CURDIR/qemu-ifup-$NUMBER,downscript=$CURDIR/qemu-ifdown-$NUMBER \
-M versatilepb -hda $ROOTFS -hdb $SWAPFS -hdd $PORTAGEFS -no-reboot -m 256 -show-cursor -serial stdio -parallel none \
-monitor unix:"$QEMU_MONITOR",server,nowait -nographic \
--append root=/dev/sda\ console=ttyAMA0\ ip=192.168.$NUMBER.10::192.168.$NUMBER.1:255.255.255.0\ mem=256M\ quiet
</pre>

qemu-ifup-1:
<pre>
#!/bin/sh

/sbin/ifconfig tap1 192.168.1.1
echo 1 > /proc/sys/net/ipv4/ip_forward
/sbin/iptables -I INPUT 1 -s 192.168.1.10 -j ACCEPT
/sbin/iptables -I OUTPUT 1 -s 192.168.1.1 -j ACCEPT
/sbin/iptables -A POSTROUTING -t nat -j MASQUERADE -s 192.168.1.0/24
</pre>

qemu-ifdown-1:
<pre>
#!/bin/sh

/sbin/ifconfig tap1 down
echo 0 > /proc/sys/net/ipv4/ip_forward
/sbin/iptables -D INPUT -s 192.168.1.10 -j ACCEPT
/sbin/iptables -D OUTPUT -s 192.168.1.1 -j ACCEPT
/sbin/iptables -D POSTROUTING -t nat -j MASQUERADE -s 192.168.1.0/24
</pre>

== First boot ==

*Add "\ init=/bin/bash" to the end of run-qemu-1 just after quiet to get bash to do initial setup and run it
*<pre>mount -n -o remount,rw /</pre>
*do setup things described in [[Gentoo]]
*<pre>mknod /dev/ttyAMA0 c 204 64</pre>
*edit /etc/inittab unhashing s0 and changeing it to ttyAMA0
*add ttyAMA0 to /etc/securetty
*emerge ntp (use binaries)
*setup /etc/resolv.conf and /etc/conf.d/net corectly (useing 192.168.1.10 as local ip and 192.168.1.1 as default route)
*add ntpdate ntp.task.gda.pl at the begining of start() in /etc/init,d/fsck
*<pre>mkdir -p /lib/modules/2.6.23</pre>
*<pre>touch /lib/modules/2.6.23/modules.dep</pre>
*<pre>sync</pre>
*<pre>mount -n -o remount,ro /</pre>
*<pre>init 0</pre>
*Use ctrl+a ctrl+x to turn off qemu
*Remove "\ init=/bin/bash" from run-qemu-1
*Run run-qemu-1 / fix things if needed

← Older revision		Revision as of 09:34, 23 October 2008
Line 111:		Line 111:
	* modify PATH in profile specifying /usr/lib/distcc/bin as first element so only preprocessing is done in qemu and all compilation on localhost		* modify PATH in profile specifying /usr/lib/distcc/bin as first element so only preprocessing is done in qemu and all compilation on localhost

−	[[~~category~~:Emulation]]	+	(instead of modifying the profile, just add a .sh file in /etc/profile.d that re-exports path. This will get sourced at the end of /etc/profile) --[[User:Trickie\|Trickie]] 09:34, 23 October 2008 (UTC)
		+
		+	[[Category:Emulation]]

@@ Line 110: / Line 110: @@
 * setup distcc specifying only localhost on emulated system
 * modify PATH in profile specifying /usr/lib/distcc/bin as first element so only preprocessing is done in qemu and all compilation on localhost
-[[category:Technical]]

← Older revision		Revision as of 05:36, 5 September 2008
Line 110:		Line 110:
	* setup distcc specifying only localhost on emulated system		* setup distcc specifying only localhost on emulated system
	* modify PATH in profile specifying /usr/lib/distcc/bin as first element so only preprocessing is done in qemu and all compilation on localhost		* modify PATH in profile specifying /usr/lib/distcc/bin as first element so only preprocessing is done in qemu and all compilation on localhost
		+	[[category:Technical]]

@@ Line 21: / Line 21: @@
 mkfs.ext2 /dev/loop0
 mount /dev/loop0 /mnt
-tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /mnt
+tar -xjpf stage3-armv4tl-*.tar.bz2 -C /mnt
-tar -xjpf /media/card/portage-*.tar.bz2 -C /mnt/usr
+tar -xjpf portage-*.tar.bz2 -C /mnt/usr
 umount /mnt
 mkswap qemuarm-0.swapfs

@@ Line 42: / Line 42: @@
 qemu-system-arm -kernel $KERNEL -net nic,vlan=0 -net tap,vlan=0,ifname=tap$NUMBER,script=$CURDIR/qemu-ifup-$NUMBER,downscript=$CURDIR/qemu-ifdown-$NUMBER \
-     -M versatilepb -hda $ROOTFS -hdb $SWAPFS -hdd $PORTAGEFS -no-reboot -m 256 -show-cursor -serial stdio -parallel none \
+     -M versatilepb -hda $ROOTFS -hdb $SWAPFS -no-reboot -m 256 -show-cursor -serial stdio -parallel none \
      -monitor unix:"$QEMU_MONITOR",server,nowait -nographic \
      --append root=/dev/sda\ console=ttyAMA0\ ip=192.168.$NUMBER.10::192.168.$NUMBER.1:255.255.255.0\ mem=256M\ quiet
@@ Line 68: / Line 68: @@
 /sbin/iptables -D POSTROUTING -t nat -j MASQUERADE -s 192.168.1.0/24
 </pre>
@@ Line 90: / Line 102: @@
 *Remove "\ init=/bin/bash" from run-qemu-1
 *Run run-qemu-1 / fix things if needed

@@ Line 21: / Line 21: @@
 mkfs.ext2 /dev/loop0
 mount /dev/loop0 /mnt
-tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /media/card
+tar -xjpf /media/card/stage3-armv4tl-*.tar.bz2 -C /mnt
-tar -xjpf /media/card/portage-*.tar.bz2 -C /media/card/usr
+tar -xjpf /media/card/portage-*.tar.bz2 -C /mnt/usr
 umount /mnt
 mkswap qemuarm-0.swapfs
@@ Line 81: / Line 81: @@
 *emerge ntp (use binaries)
 *setup /etc/resolv.conf and /etc/conf.d/net corectly (useing 192.168.1.10 as local ip and 192.168.1.1 as default route)
-*add ntpdate ntp.task.gda.pl at the begining of start() in /etc/init,d/fsck
+*add ntpdate ntp.task.gda.pl at the begining of start() in /etc/init,d/fsck to ensure correct date at boot (no rtc clock support in that kernel image)
 *<pre>mkdir -p /lib/modules/2.6.23</pre>
 *<pre>touch /lib/modules/2.6.23/modules.dep</pre>

@@ Line 74: / Line 74: @@
 *Add "\ init=/bin/bash" to the end of run-qemu-1 just after quiet to get bash to do initial setup and run it
 *<pre>mount -n -o remount,rw /</pre>
 *do setup things described in [[Gentoo]]
 *<pre>mknod /dev/ttyAMA0 c 204 64</pre>

GentooQEMUBuildBox - Revision history

Trickie: /* Advanced setup */

Kempelen: Category: -Technical, +Emulation

Coolcat at 05:36, 5 September 2008

Torindel at 11:17, 4 September 2008

Torindel at 10:58, 4 September 2008

Torindel at 10:58, 4 September 2008

Torindel at 09:00, 4 September 2008

Torindel: New page: == Read first == Gentoo, http://www.gentoo.org/doc/en/handbook/handbook-arm.xml == Needed things == *unpatched QEMU from any normal distro *Gentoo stage: http://torindel.sezamkowa.n...

Torindel: New page: == Read first == Gentoo, http://www.gentoo.org/doc/en/handbook/handbook-arm.xml == Needed things == unpatched QEMU from any normal distro Gentoo stage: http://torindel.sezamkowa.n...