Hi Zoran, How does dispatcher select ot,master or nfs at startup?
In adition,in https://validation.linaro.org/static/docs/v2/actions-boot.html#index-9, -setenv loadkernel 'tftp {KERNEL_ADDR} {KERNEL}' It say the {KERNEL} will be substituted. Where is {KERNEL} variable defined? When I submit job definition by web ui,I did't find where to define {KERNEL} variable
At 2018-08-15 14:04:36, "Zoran S" zoran.stojsavljevic.de@gmail.com wrote:
Hello 126.com,
Two things here: [1] your question has almost nothing to do with Lava, but almost everything with kernel system configuration; [2] I'll do very short explanation (my way), and then you need to google it, since there are megatons of materials out there.
We start from the boot arguments, which translates directly to kernel command line:
u-boot: oe: - setenv bootargs 'console=ttyO0,115200n8 root=/dev/mmcblk0p5 rootwait ro' master: - setenv bootargs 'console=ttyO0,115200n8 root=LABEL=testrootfs rootwait ro' nfs: - "setenv nfsargs 'setenv bootargs console=ttyO0,115200n8 root=/dev/nfs rw nfsroot={SERVER_IP}:{NFSROOTFS},tcp,hard,intr ip=dhcp'" nbd: - setenv nbdkbootargs ' ip=dhcp nbd.server={NBDSERVERIP} nbd.port={NBDSERVERPORT} root=/dev/ram0 ramdisk_size=16384 rootdelay=7 fixrtc nocompcache vram=48M omapfb.vram=0:24M mem=456M@0x80000000 mem=512M@0xA0000000 rootdelay=5 ip=dhcp' - setenv bootargs verbose console=ttyO2,115200n8 rw ${nbdbasekargs} ${nbdkbootargs} ramdisk: - setenv bootargs 'console=ttyO0,115200n8 root=/dev/ram0 ip=dhcp' usb: - setenv bootargs 'console=ttyO0,115200n8 root={ROOT} ip=dhcp'
As you see, each way to boot differs by how rootfs is mounted to the system. OE boots from flash, ramdisk from ram0 (initramfs), nfs uses rootfs from the host, mounting to it using network it is physically attached to it, and so on, and so on...
But, in order to do this, you need to manipulate initial kernel menuconfig, called mostly defconfig, defined in the kernel root tree. Then, in order to choose how to boot, you need to manipulate CONFIG (.config).
As for example, to make system to boot from initramfs, you have to have the following set in .config: https://github.com/ZoranStojsavljevic/cip-rt-misc/blob/master/configs/bbb/co...
So, from here you continue walking yourself. :-)
Good Luck, Zoran _______
On Tue, Aug 14, 2018 at 3:53 PM, ljh_dev ljh_dev@126.com wrote:
Hi,Zoran, https://git.linaro.org/lava/lava.git/tree/lava_dispatcher/devices/bbb-01.yam... Under boot label, it has some sub labels such as oe,matser,nfs .. Could you explain to me about the relationship among oe,matser,nfs ..
在 2018-08-14 20:37:52，"Zoran S" zoran.stojsavljevic.de@gmail.com 写道：
https://git.linaro.org/lava/lava.git/tree/lava_dispatcher/devices/bbb-01.yam...
Zoran
On Tue, Aug 14, 2018 at 2:29 PM, ljh_dev ljh_dev@126.com wrote:
Don't need to set connection_list command?
https://validation.linaro.org/static/docs/v2/lava-scheduler-device-dictionar... It say: connection_list - the list of hardware ports which are configured for serial connections to the device.
在 2018-08-14 20:24:06，"Zoran S" zoran.stojsavljevic.de@gmail.com 写道：
https://github.com/ZoranStojsavljevic/lava-server-vm/blob/master/device-type...
Zoran _______
On Tue, Aug 14, 2018 at 1:42 PM, ljh_dev ljh_dev@126.com wrote:
The board has usb serial, it connected to computer running dispatcher. On dispatcher computer that usb serial device name is /dev/ttyUSB0 . How to configure usb serial in device .jinja2 file?
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