rootfs ?

[bianchi77]

Hi Ciro, I got your link from here 👍
https://unix.stackexchange.com/questions/70931/install-x11-on-my-own-linux-system
......Tested on Ubuntu 16.04, Buildroot 2016.05.....

I tried to run rootfs.tar from qemu but I don't know root="" ?
Kernel panic, can not find root system , what should I do with rootfs.tar with qemu ?

Thanks

[cirosantilli]

Hi

1. So you are running these commands, correct:

make BR2_JLEVEL=$(nproc)
qemu-system-x86_64 \
    -enable-kvm \
    -M pc \
    -m 512 \
    -kernel output/images/bzImage \
    -drive file=output/images/rootfs.ext2,if=virtio,format=raw \
    -append root=/dev/vda \
    -net nic,model=virtio \
    -net user

with this .config file: https://github.com/cirosantilli/buildroot-configs/blob/44b45b5c7f68e44abcda360a2b980f8301901a9a/qemu_x86_64_x11_defconfig ?

2. Does output/images/rootfs.ext2 exist?

3. The root in -append root=/dev/vda shouldn't change I think, what matters most is the -drive file=output/images/rootfs.ext2.

I'll try this once again when I get the time.

[cirosantilli]

OK, I have just re-run this and those exact instructions worked :-)

[bianchi77]

I tried rebuild my buildroot and it can not "startx" ===== # startx expr: warning: '^/dev/tty[0-9]\+$': using '^' as the first character of a basic regular expression is not portable; it is ignored xauth: file /root/.serverauth.1010 does not exist xauth: file /root/.Xauthority does not exist X.Org X Server 1.14.7 Release Date: 2014-06-05 X Protocol Version 11, Revision 0 Build Operating System: Linux 4.4.0-75-generic x86_64 Current Operating System: Linux RikoRoot 4.11.0 #1 SMP Wed May 17 17:15:34 AWST 2017 x86_64 Kernel command line: console=ttyS0 Build Date: 17 May 2017 04:19:36PM Current version of pixman: 0.34.0 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Wed May 17 11:05:26 2017 (==) Using default built-in configuration (30 lines) Initializing built-in extension Generic Event Extension Initializing built-in extension SHAPE Initializing built-in extension MIT-SHM Initializing built-in extension XInputExtension Initializing built-in extension XTEST Initializing built-in extension BIG-REQUESTS Initializing built-in extension SYNC Initializing built-in extension XKEYBOARD Initializing built-in extension XC-MISC Initializing built-in extension XINERAMA Initializing built-in extension XFIXES Initializing built-in extension RENDER Initializing built-in extension RANDR Initializing built-in extension DAMAGE Initializing built-in extension DOUBLE-BUFFER Initializing built-in extension DPMS Initializing built-in extension X-Resource Initializing built-in extension XVideo Initializing built-in extension XVideo-MotionCompensation Initializing built-in extension XFree86-VidModeExtension Initializing built-in extension XFree86-DGA (EE) Fatal server error: (EE) no screens found(EE) (EE) Please consult the The X.Org Foundation support at http://wiki.x.org for help. (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information. (EE) (EE) Server terminated with error (1). Closing log file. ===== What do you reckon ?

…

On 17/05/17 17:49, cirosantilli wrote: OK, I have just re-run this and those exact instructions worked :-) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <https://github.com/cirosantilli/chat/issues/27#issuecomment-302041927>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMkg5FqSZScsp-CeYnLjwC2eqO-UoJweks5r6sKQgaJpZM4NdbnU>.

-- * /*******/ Sent by Ubuntu LTS 16.04, 谢谢, Regards, Riko Ho /*******/ *

[cirosantilli]

Hmmm, sorry, but I don't know much about X.

Are you sure you have:

• a clean build git clean -xdf
• with this config file: https://github.com/cirosantilli/buildroot-configs/blob/44b45b5c7f68e44abcda360a2b980f8301901a9a/qemu_x86_64_x11_defconfig
• at git checkout 2016.05

?

If yes, try opening a stack overflow question ;-)

[bianchi77]

That's my screenshot for Xorg config, how can I load your defconfig, I can't call it with make qemu_x86_64_x11_defconfig <https://github.com/cirosantilli/buildroot-configs/blob/44b45b5c7f68e44abcda360a2b980f8301901a9a/qemu_x86_64_x11_defconfig> from shell ??

…

On 17/05/17 20:03, cirosantilli wrote: Hmmm, sorry, but I don't know much about X. Are you sure you have: * a clean build |git clean -xdf| * with this config file: https://github.com/cirosantilli/buildroot-configs/blob/44b45b5c7f68e44abcda360a2b980f8301901a9a/qemu_x86_64_x11_defconfig * at |git checkout 2016.05| ? If yes, try opening a stack overflow question ;-) — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <https://github.com/cirosantilli/chat/issues/27#issuecomment-302069316>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMkg5A4G7Ke1S_tWo34UAnVNKIqtjuMnks5r6uIXgaJpZM4NdbnU>.

-- * /*******/ Sent by Ubuntu LTS 16.04, 谢谢, Regards, Riko Ho /*******/ *

[cirosantilli]

Rename qemu_x86_64_x11_defconfig to .config, make uses .config in current directory :-)