Cannot launch hart RT UOS when running Ubuntu as SOS
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Alfonso Sanchez-Beato
Hi,
I have set-up Ubuntu as service OS by following the instructions in https://projectacrn.github.io/latest/tutorials/using_ubuntu_as_sos.html. ACRN is recognized as hypervisor and all looks good in principle. However, after that I followed the instructions on how to start an RT UOS and things fail: $ sudo /usr/share/acrn/samples/nuc/launch_hard_rt_vm.sh
cpu1 online=1
cpu2 online=1
cpu3 online=1
pm by vuart node-index = 1
SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size 0x200000
vm_create: hard_rtvm
VHM api version 1.0
failed to create VM hard_rtvm
The kernel output is: [ 1530.397790] smpboot: CPU 1 is now offline
[ 1530.398653] vhm: try to offline cpu 1 with lapicid 2
[ 1530.409744] smpboot: CPU 2 is now offline
[ 1530.410476] vhm: try to offline cpu 2 with lapicid 4
[ 1530.429694] smpboot: CPU 3 is now offline
[ 1530.430509] vhm: try to offline cpu 3 with lapicid 6
[ 1530.575078] nvme nvme0: failed to set APST feature (-19)
[ 1530.579387] pci-stub 0000:02:00.0: claimed by stub
[ 1530.661794] vhm_dev_open: opening device node
[ 1530.663654] vhm: failed to create VM from Hypervisor !
[ 1531.163905] vhm: failed to create VM from Hypervisor !
[ 1531.664126] vhm: failed to create VM from Hypervisor !
[ 1532.164360] vhm: failed to create VM from Hypervisor !
[ 1532.664589] vhm: failed to create VM from Hypervisor !
[ 1533.164775] vhm: failed to create VM from Hypervisor !
[ 1533.664987] vhm: failed to create VM from Hypervisor !
[ 1534.165215] vhm: failed to create VM from Hypervisor !
[ 1534.665435] vhm: failed to create VM from Hypervisor !
[ 1535.165656] vhm: failed to create VM from Hypervisor !
[ 1535.682037] vhm: freed vm
Thanks! Alfonso |
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Liu, Fuzhong
Hi Alfonso, You are using default launch_hard_rt_vm.sh, right? Maybe, it is SDC(by default) scenario for your acrn.efi, Please refer following patch:
diff --git a/hypervisor/arch/x86/Kconfig b/hypervisor/arch/x86/Kconfig index 41a78fe7..386a074b 100644 --- a/hypervisor/arch/x86/Kconfig +++ b/hypervisor/arch/x86/Kconfig @@ -1,6 +1,6 @@ choice prompt "ACRN Scenario" - default SDC + default INDUSTRY help Select the scenario name to load corresponding VM configuration.
Then;
cd ~/acrn-hypervisor make sudo make install
And try again.
Thanks!
BR. Fuzhong
From: acrn-users@... <acrn-users@...>
On Behalf Of alfonso.sanchez-beato@...
Sent: Wednesday, January 8, 2020 5:44 PM To: acrn-users@... Subject: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi, $ sudo /usr/share/acrn/samples/nuc/launch_hard_rt_vm.sh cpu1 online=1 cpu2 online=1 cpu3 online=1 pm by vuart node-index = 1 SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size 0x200000 vm_create: hard_rtvm VHM api version 1.0 failed to create VM hard_rtvm
[ 1530.397790] smpboot: CPU 1 is now offline [ 1530.398653] vhm: try to offline cpu 1 with lapicid 2 [ 1530.409744] smpboot: CPU 2 is now offline [ 1530.410476] vhm: try to offline cpu 2 with lapicid 4 [ 1530.429694] smpboot: CPU 3 is now offline [ 1530.430509] vhm: try to offline cpu 3 with lapicid 6 [ 1530.575078] nvme nvme0: failed to set APST feature (-19) [ 1530.579387] pci-stub 0000:02:00.0: claimed by stub [ 1530.661794] vhm_dev_open: opening device node [ 1530.663654] vhm: failed to create VM from Hypervisor ! [ 1531.163905] vhm: failed to create VM from Hypervisor ! [ 1531.664126] vhm: failed to create VM from Hypervisor ! [ 1532.164360] vhm: failed to create VM from Hypervisor ! [ 1532.664589] vhm: failed to create VM from Hypervisor ! [ 1533.164775] vhm: failed to create VM from Hypervisor ! [ 1533.664987] vhm: failed to create VM from Hypervisor ! [ 1534.165215] vhm: failed to create VM from Hypervisor ! [ 1534.665435] vhm: failed to create VM from Hypervisor ! [ 1535.165656] vhm: failed to create VM from Hypervisor ! [ 1535.682037] vhm: freed vm
Any hint on what might be going wrong and instructions on how to debug? I followed previously the tutorial for Clear Linux and was able to launch the RT image. I am using a NUC7i7DNH device. |
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Alfonso Sanchez-Beato
Hi Liu, On Wed, Jan 8, 2020 at 12:12 PM Liu, Fuzhong <fuzhong.liu@...> wrote:
I tried with that, but no difference in the traces :-/. Actually I had already tried with 'make all BOARD=nuc7i7dnb SCENARIO=industry', which I guess i the same.
Thanks Alfonso
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Liu, Fuzhong
Hi Alfonso Please share your acrn.efi and acrn-dm, will reproduce this issue on our side. Thanks!
BR. Fuzhong
From: acrn-users@... <acrn-users@...>
On Behalf Of Alfonso Sanchez-Beato
Sent: Wednesday, January 8, 2020 7:39 PM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi Liu,
On Wed, Jan 8, 2020 at 12:12 PM Liu, Fuzhong <fuzhong.liu@...> wrote:
I tried with that, but no difference in the traces :-/. Actually I had already tried with 'make all BOARD=nuc7i7dnb SCENARIO=industry', which I guess i the same.
Thanks Alfonso
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Your build instruction below should be fine (you can always also check the content of build/hypervisor/.config to make sure that you have CONFIG_INDUSTRY=y in it).
Note though that “sudo make install” will install the ACRN Device Model (acrn-dm) and tools but you still need to perform additional steps manually to install this new hypervisor (acrn.efi) that you have just built. See step 4 in this section https://projectacrn.github.io/latest/tutorials/using_ubuntu_as_sos.html#install-acrn
Geoffroy
From: acrn-users@... <acrn-users@...>
On Behalf Of Liu, Fuzhong
Sent: Wednesday, January 8, 2020 10:36 PM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi Alfonso Please share your acrn.efi and acrn-dm, will reproduce this issue on our side. Thanks!
BR. Fuzhong
From:
acrn-users@... <acrn-users@...>
On Behalf Of Alfonso Sanchez-Beato
Hi Liu,
On Wed, Jan 8, 2020 at 12:12 PM Liu, Fuzhong <fuzhong.liu@...> wrote:
I tried with that, but no difference in the traces :-/. Actually I had already tried with 'make all BOARD=nuc7i7dnb SCENARIO=industry', which I guess i the same.
Thanks Alfonso
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Liu, Fuzhong
Hi Alfonso Could you please share acrn.efi and acrn-dm commit info?
With following steps:
We need them to reproduce this issue. Thanks!
BR. Fuzhong
From: acrn-users@... <acrn-users@...>
On Behalf Of Liu, Fuzhong
Sent: Thursday, January 9, 2020 5:36 AM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi Alfonso Please share your acrn.efi and acrn-dm, will reproduce this issue on our side. Thanks!
BR. Fuzhong
From:
acrn-users@... <acrn-users@...>
On Behalf Of Alfonso Sanchez-Beato
Hi Liu,
On Wed, Jan 8, 2020 at 12:12 PM Liu, Fuzhong <fuzhong.liu@...> wrote:
I tried with that, but no difference in the traces :-/. Actually I had already tried with 'make all BOARD=nuc7i7dnb SCENARIO=industry', which I guess i the same.
Thanks Alfonso
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Alfonso Sanchez-Beato
Hi Liu and Geoffroy, Right, I had forgotten to copy acrn.efi to the EFI partition after re-compiling, thanks for reminding me. With that things move forward a bit, but I still get errors: Version info: $ acrn-dm -v DM version is: 1.4-unstable-bcefd673 (daily tag:acrn-2019w47.1-140000p), build by ubuntu@2020-01-09 09:45:17 ubuntu@nuc:~$ uname -a Linux nuc 4.19.78-98.iot-lts2018-sos #1 SMP PREEMPT Mon Nov 18 09:22:10 PST 2019 x86_64 x86_64 x86_64 GNU/Linux I have not been able yet to get output from the serial port, unfortunately. Full dmesg output: https://paste.ubuntu.com/p/G8DtQTMrbS/ I see there an hvlog error which I do not know if it is relevant or not: $ sudo dmesg | grep -i ACRN [ 0.000000] Command line: BOOT_IMAGE=/boot/acrn/org.clearlinux.iot-lts2018-sos.4.19.78-98 pci_devices_ignore=(0:18:1) console=tty0 console=ttyS0 root=/dev/sda3 rw rootwait ignore_loglevel no_timer_check consoleblank=0 i915.nuclear_pageflip=1 i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_gvt=1 i915.enable_guc=0 hvlog=2M@0x1FE00000 [ 0.000000] Hypervisor detected: ACRN [ 0.054541] Kernel command line: BOOT_IMAGE=/boot/acrn/org.clearlinux.iot-lts2018-sos.4.19.78-98 pci_devices_ignore=(0:18:1) console=tty0 console=ttyS0 root=/dev/sda3 rw rootwait ignore_loglevel no_timer_check consoleblank=0 i915.nuclear_pageflip=1 i915.avail_planes_per_pipe=0x01010F i915.domain_plane_owners=0x011111110000 i915.enable_gvt=1 i915.enable_guc=0 hvlog=2M@0x1FE00000 [ 1.058634] acrngt found [ 1.143414] ACRNTrace: Initialized acrn trace module with 4 cpu [ 1.144809] ACRN HVLog: Failed to init last hvlog devs, errno -19 [ 1.144976] ACRN HVLog: Initialized hvlog module with 4 cpu Thanks Alfonso On Thu, Jan 9, 2020 at 3:37 AM Liu, Fuzhong <fuzhong.liu@...> wrote:
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Yin, Fengwei <fengwei.yin@...>
Hi Alfonso,
On 2020/1/9 下午5:11, Alfonso Sanchez-Beato wrote: Hi Liu and Geoffroy,It's related with iasl in your SOS. We have constrain for iasl version. Regards Yin, Fengwei Version info: |
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Hi Alfonso,
You are not building with CONFIG_RELEASE=y by any chance? (If the tag info below is correct, the default is not to use that). In case you did, note that it will disable the use of the serial port.
Based on the output I see, it should work though with the default settings. Are you seeing any output at all on the serial port (e.g. Bios output)? Make sure to use these settings in minicom (or whatever else you use): 115200 8N1, both HW and SW flow control should turned off (this last one often gets me, the default may be that one is on).
As far as I know, the HVlog error shouldn’t affect the functionality, so there is something else going wrong in your set-up. Let me continue dig through the logs and see if I can spot some other useful info.
Geoffroy
From: acrn-users@... <acrn-users@...>
On Behalf Of Alfonso Sanchez-Beato
Sent: Thursday, January 9, 2020 10:12 AM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi Liu and Geoffroy,
Right, I had forgotten to copy acrn.efi to the EFI partition after re-compiling, thanks for reminding me. With that things move forward a bit, but I still get errors:
Version info:
$ acrn-dm -v
ubuntu@nuc:~$ uname -a
I have not been able yet to get output from the serial port, unfortunately.
Full dmesg output: https://paste.ubuntu.com/p/G8DtQTMrbS/
I see there an hvlog error which I do not know if it is relevant or not:
$ sudo dmesg | grep -i ACRN
Thanks Alfonso
On Thu, Jan 9, 2020 at 3:37 AM Liu, Fuzhong <fuzhong.liu@...> wrote:
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Hi Fengwei,
toggle quoted message
Show quoted text
-----Original Message-----Do you know which version Alfonso should use? I believe it is 20191018 but it would be appreciated if you could confirm. @Alfonso, if true, you can install it as follows $ sudo apt update $ sudo apt install m4 bison flex zlib1g-dev $ cd ~ $ wget https://acpica.org/sites/acpica/files/acpica-unix-20191018.tar.gz $ tar zxvf acpica-unix-20191018.tar.gz $ cd acpica-unix-20191018 $ make clean && make iasl $ sudo cp ./generate/unix/bin/iasl /usr/sbin/ Thanks, Geoffroy
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Liu, Fuzhong
Hi Alfonso, Maybe, you miss following steps mentioned in the guide: https://projectacrn.github.io/latest/tutorials/using_ubuntu_as_sos.html
BR. Fuzhong
-----Original Message-----
From: acrn-users@... <acrn-users@...> On Behalf Of Geoffroy Van Cutsem Sent: Thursday, January 9, 2020 5:54 PM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
Hi Fengwei,
> -----Original Message----- > From: acrn-users@... > <acrn-users@...> On Behalf Of Yin, Fengwei > Sent: Thursday, January 9, 2020 10:42 AM > To: acrn-users@... > Subject: Re: [acrn-users] Cannot launch hart RT UOS when running > Ubuntu as SOS > > Hi Alfonso, > > On 2020/1/9 下午5:11, Alfonso Sanchez-Beato wrote: > > Hi Liu and Geoffroy, > > > > Right, I had forgotten to copy acrn.efi to the EFI partition after > > re-compiling, thanks for reminding me. With that things move forward > > a bit, but I still get errors: > > > > https://paste.ubuntu.com/p/R7THmm3hK6/ > It's related with iasl in your SOS. We have constrain for iasl version.
Do you know which version Alfonso should use? I believe it is 20191018 but it would be appreciated if you could confirm.
@Alfonso, if true, you can install it as follows $ sudo apt update $ sudo apt install m4 bison flex zlib1g-dev $ cd ~ $ wget https://acpica.org/sites/acpica/files/acpica-unix-20191018.tar.gz $ tar zxvf acpica-unix-20191018.tar.gz $ cd acpica-unix-20191018 $ make clean && make iasl $ sudo cp ./generate/unix/bin/iasl /usr/sbin/
Thanks, Geoffroy
> > > Regards > Yin, Fengwei > > > > > Version info: > > > > $ acrn-dm -v > > DM version is: 1.4-unstable-bcefd673 (daily > > tag:acrn-2019w47.1-140000p), build by ubuntu@2020-01-09 09:45:17 > > > > ubuntu@nuc:~$ uname -a > > Linux nuc 4.19.78-98.iot-lts2018-sos #1 SMP PREEMPT Mon Nov 18 > > 09:22:10 PST 2019 x86_64 x86_64 x86_64 GNU/Linux > > > > I have not been able yet to get output from the serial port, unfortunately. > > > > Full dmesg output: https://paste.ubuntu.com/p/G8DtQTMrbS/ > > > > I see there an hvlog error which I do not know if it is relevant or not: > > > > $ sudo dmesg | grep -i ACRN > > [ 0.000000] Command line: > > BOOT_IMAGE=/boot/acrn/org.clearlinux.iot-lts2018-sos.4.19.78-98 > > pci_devices_ignore=(0:18:1) console=tty0 console=ttyS0 > > root=/dev/sda3 rw rootwait ignore_loglevel no_timer_check > > consoleblank=0 > > i915.nuclear_pageflip=1 i915.avail_planes_per_pipe=0x01010F > > i915.domain_plane_owners=0x011111110000 i915.enable_gvt=1 > > i915.enable_guc=0 hvlog=2M@0x1FE00000 [ 0.000000] Hypervisor > > detected: ACRN [ 0.054541] Kernel command > > line: > > BOOT_IMAGE=/boot/acrn/org.clearlinux.iot-lts2018-sos.4.19.78-98 > > pci_devices_ignore=(0:18:1) console=tty0 console=ttyS0 > > root=/dev/sda3 rw rootwait ignore_loglevel no_timer_check > > consoleblank=0 > > i915.nuclear_pageflip=1 i915.avail_planes_per_pipe=0x01010F > > i915.domain_plane_owners=0x011111110000 i915.enable_gvt=1 > > i915.enable_guc=0 hvlog=2M@0x1FE00000 [ 1.058634] acrngt found [ > > 1.143414] ACRNTrace: Initialized acrn trace module with 4 cpu [ > > 1.144809] ACRN HVLog: Failed to init last hvlog devs, errno -19 [ > > 1.144976] ACRN HVLog: Initialized hvlog module with 4 cpu > > > > Thanks > > Alfonso > > > > On Thu, Jan 9, 2020 at 3:37 AM Liu, Fuzhong <fuzhong.liu@... > > <mailto:fuzhong.liu@...>> wrote: > > > > Hi Alfonso____ > > > > Could you please share acrn.efi and acrn-dm commit info?____ > > > > __ __ > > > > With following steps:____ > > > > 1. run “acrn-dm -v” in sos ____ > > 2. run “version” in HV console____ > > > > We need them to reproduce this issue.____ > > > > Thanks!____ > > > > __ __ > > > > BR.____ > > > > Fuzhong____ > > > > __ __ > > > > *From:* acrn-users@... > > <mailto:acrn-users@...> > > <acrn-users@... > > <mailto:acrn-users@...>> *On Behalf Of *Liu, Fuzhong > > *Sent:* Thursday, January 9, 2020 5:36 AM > > *To:* acrn-users@... > > <mailto:acrn-users@...> > > *Subject:* Re: [acrn-users] Cannot launch hart RT UOS when running > > Ubuntu as SOS____ > > > > __ __ > > > > Hi Alfonso____ > > > > Please share your acrn.efi and acrn-dm, will reproduce this issue on > > our side.____ > > > > Thanks!____ > > > > __ __ > > > > BR.____ > > > > Fuzhong____ > > > > __ __ > > > > *From:* acrn-users@... > > <mailto:acrn-users@...> > > <acrn-users@... > > <mailto:acrn-users@...>> *On Behalf Of *Alfonso > > Sanchez-Beato > > *Sent:* Wednesday, January 8, 2020 7:39 PM > > *To:* acrn-users@... > > <mailto:acrn-users@...> > > *Subject:* Re: [acrn-users] Cannot launch hart RT UOS when running > > Ubuntu as SOS____ > > > > __ __ > > > > Hi Liu,____ > > > > __ __ > > > > On Wed, Jan 8, 2020 at 12:12 PM Liu, Fuzhong <fuzhong.liu@... > > <mailto:fuzhong.liu@...>> wrote:____ > > > > Hi Alfonso,____ > > > > You are using default launch_hard_rt_vm.sh, right?____ > > > > Maybe, it is SDC(by default) scenario for your acrn.efi, > > ____ > > > > Please refer following patch:____ > > > > ____ > > > > *diff --git a/hypervisor/arch/x86/Kconfig > > b/hypervisor/arch/x86/Kconfig*____ > > > > *index 41a78fe7..386a074b 100644*____ > > > > *--- a/hypervisor/arch/x86/Kconfig*____ > > > > *+++ b/hypervisor/arch/x86/Kconfig*____ > > > > @@ -1,6 +1,6 @@____ > > > > choice____ > > > > prompt "ACRN Scenario"____ > > > > - default SDC____ > > > > +default INDUSTRY____ > > > > help____ > > > > Select the scenario name to load corresponding VM > > configuration.____ > > > > ____ > > > > Then;____ > > > > ____ > > > > cd ~/acrn-hypervisor____ > > > > make____ > > > > sudo make install____ > > > > ____ > > > > And try again.____ > > > > __ __ > > > > I tried with that, but no difference in the traces :-/.____ > > > > Actually I had already tried with 'make all BOARD=nuc7i7dnb > > SCENARIO=industry', which I guess i the same.____ > > > > ____ > > > > ____ > > > > Thanks!____ > > > > ____ > > > > BR.____ > > > > Fuzhong____ > > > > __ __ > > > > Thanks____ > > > > Alfonso____ > > > > ____ > > > > ____ > > > > *From:* acrn-users@... > > <mailto:acrn-users@...> > > <acrn-users@... > > <mailto:acrn-users@...>> *On Behalf Of > > *alfonso.sanchez-beato@... > > <mailto:alfonso.sanchez-beato@...> > > *Sent:* Wednesday, January 8, 2020 5:44 PM > > *To:* acrn-users@... > > <mailto:acrn-users@...> > > *Subject:* [acrn-users] Cannot launch hart RT UOS when running > > Ubuntu as SOS____ > > > > ____ > > > > Hi, > > > > I have set-up Ubuntu as service OS by following the instructions > > in > > https://projectacrn.github.io/latest/tutorials/using_ubuntu_as_sos.html. > > > <https://projectacrn.github.io/latest/tutorials/using_ubuntu_as_sos.ht > ml>ACRN > > is recognized as hypervisor and all looks good in principle. > > However, after that I followed the instructions on how to start > > an RT UOS > > <https://projectacrn.github.io/latest/getting- > started/rt_industry.html#install-and-launch-the-preempt-rt-vm> > > and things fail:____ > > > > $ sudo /usr/share/acrn/samples/nuc/launch_hard_rt_vm.sh____ > > > > cpu1 online=1____ > > > > cpu2 online=1____ > > > > cpu3 online=1____ > > > > pm by vuart node-index = 1____ > > > > SW_LOAD: get ovmf path /usr/share/acrn/bios/OVMF.fd, size > > 0x200000____ > > > > vm_create: hard_rtvm____ > > > > VHM api version 1.0____ > > > > failed to create VM hard_rtvm____ > > > > > > The kernel output is:____ > > > > [ 1530.397790] smpboot: CPU 1 is now offline____ > > > > [ 1530.398653] vhm: try to offline cpu 1 with lapicid 2____ > > > > [ 1530.409744] smpboot: CPU 2 is now offline____ > > > > [ 1530.410476] vhm: try to offline cpu 2 with lapicid 4____ > > > > [ 1530.429694] smpboot: CPU 3 is now offline____ > > > > [ 1530.430509] vhm: try to offline cpu 3 with lapicid 6____ > > > > [ 1530.575078] nvme nvme0: failed to set APST feature > > (-19)____ > > > > [ 1530.579387] pci-stub 0000:02:00.0: claimed by stub____ > > > > [ 1530.661794] vhm_dev_open: opening device node____ > > > > [ 1530.663654] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1531.163905] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1531.664126] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1532.164360] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1532.664589] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1533.164775] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1533.664987] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1534.165215] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1534.665435] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1535.165656] vhm: failed to create VM from Hypervisor > > !____ > > > > [ 1535.682037] vhm: freed vm____ > > > > ____ > > > > Any hint on what might be going wrong and instructions on how to > > debug? I followed previously the tutorial for Clear Linux and > > was able to launch the RT image. I am using a NUC7i7DNH device. > > > > Thanks! > > Alfonso____ > > > > __ > > > > > >
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Alfonso Sanchez-Beato
On Thu, Jan 9, 2020 at 11:39 AM Liu, Fuzhong <fuzhong.liu@...> wrote:
Thanks all, yes, that was the problem. I can finally launch the RT kernel! I had skipped the "Prepare the User OS (UOS)" section (I wanted to try the RT kernel instead), and had not noticed that bit.
Best, Alfonso
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Great – thanks for confirming this Alfonso!
From: acrn-users@... <acrn-users@...>
On Behalf Of Alfonso Sanchez-Beato
Sent: Thursday, January 9, 2020 12:35 PM To: acrn-users@... Subject: Re: [acrn-users] Cannot launch hart RT UOS when running Ubuntu as SOS
On Thu, Jan 9, 2020 at 11:39 AM Liu, Fuzhong <fuzhong.liu@...> wrote:
Thanks all, yes, that was the problem. I can finally launch the RT kernel! I had skipped the "Prepare the User OS (UOS)" section (I wanted to try the RT kernel instead), and had not noticed that bit.
Best, Alfonso
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