:) Thanks Sam... same thing worked for me also.
  
 - Shankar

On Wednesday, 11 March 2020 23:32:29 UTC+5:30, Braganza Roberts wrote:
>
> I faced the same issue as well. In my case I deleted the "cf" folder which 
> was created as part of step 8 from 
> https://android.googlesource.com/device/google/cuttlefish/ and redo step 
> 8 again😉
>
> And I assume your step 1 was completed without any errors.
>
> - Sam.
>
>
> On Wed, Mar 11, 2020, 4:48 PM shankar kumar yellapu <
> [email protected] <javascript:>> wrote:
>
>> Hi All,
>>
>> From past couple of days I'm trying to bring up cuttlefish VM 
>> (aosp_cf_x86_64_phone) on my ubuntu 18.10 X86 PC. I am seeing following 
>> error in log and nothing shows when I run tight VNC viewer. I followed 
>> every step mentioned in 
>> https://android.googlesource.com/device/google/cuttlefish/. Am I missing 
>> anything?  Please help.....
>>
>> *[ERROR:src/main.rs:1248 <http://main.rs:1248>] The architecture failed 
>> to build the vm: error creating devices: failed to create virtual disk: 
>> failure in qcow: backing file io error: No such file or directory (os error 
>> 2)*
>>
>> *run_cvd I 03-11 13:14:54 17936 17944 process_monitor.cc:139] Detected 
>> exit of monitored subprocessrun_cvd I 03-11 13:14:54 17936 17944 
>> process_monitor.cc:147] Subprocess /home/SKY/cf/bin/crosvm (26659) has 
>> exited with exit code 1*
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:286] Started (pid: 
>> 26667): /home/SKY/cf/bin/crosvm
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] run
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --initrd=/home/SKY/cf/cuttlefish_assembly/ramdisk.img.concat
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --null-audio
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --mem=2048
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cpus=2
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --params= 
>> printk.devkmsg=on firmware_class.path=/vendor/etc/ init=/init 
>> androidboot.hardware=cutf_cvm security=selinux androidboot.console=ttyS1 
>> buildvariant=userdebug androidboot.hardware.gralloc=cutf_ashmem 
>> androidboot.hardware.hwcomposer=cutf_cvm_ashmem 
>> androidboot.hardware.egl=swiftshader androidboot.hardware.vulkan=pastel 
>> androidboot.boot_devices=pci0000:00/0000:00:01.0 
>> androidboot.serialno=CUTTLEFISHCVD011 androidboot.lcd_density=160 
>> androidboot.setupwizard_mode=DISABLED androidboot.slot_suffix=_a 
>> loop.max_part=7 enforcing=1 audit=1 androidboot.force_normal_boot=1  
>> androidboot.vsock_frames_port=2907933463 androidboot.tombstone_transmit=1 
>> androidboot.vsock_tombstone_port=2907933462 
>> androidboot.cuttlefish_config_server_port=2907933461 
>> androidboot.vsock_logcat_port=2907933460
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rwdisk=/home/SKY/cf/cuttlefish_runtime.1/overlay.img
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --socket=/home/SKY/cf/cuttlefish_runtime.1/internal/crosvm_control.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --single-touch=/home/SKY/cf/cuttlefish_runtime.1/internal/touch.sock:720:1280
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --keyboard=/home/SKY/cf/cuttlefish_runtime.1/internal/keyboard.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=35
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=37
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rw-pmem-device=/home/SKY/cf/cuttlefish_runtime.1/access-kregistry
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --disable-sandbox
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cid=3
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=1,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/kernel-log-pipe,console=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=2,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/console-pipe,stdin=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> /home/SKY/cf/cuttlefish_assembly/kernel
>> [ERROR:src/main.rs:1248] The architecture failed to build the vm: error 
>> creating devices: failed to create virtual disk: failure in qcow: backing 
>> file io error: No such file or directory (os error 2)
>> run_cvd I 03-11 13:14:54 17936 17944 process_monitor.cc:139] Detected 
>> exit of monitored subprocess
>> run_cvd I 03-11 13:14:54 17936 17944 process_monitor.cc:147] Subprocess 
>> /home/SKY/cf/bin/crosvm (26667) has exited with exit code 1
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:286] Started (pid: 
>> 26675): /home/SKY/cf/bin/crosvm
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] run
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --initrd=/home/SKY/cf/cuttlefish_assembly/ramdisk.img.concat
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --null-audio
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --mem=2048
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cpus=2
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --params= 
>> printk.devkmsg=on firmware_class.path=/vendor/etc/ init=/init 
>> androidboot.hardware=cutf_cvm security=selinux androidboot.console=ttyS1 
>> buildvariant=userdebug androidboot.hardware.gralloc=cutf_ashmem 
>> androidboot.hardware.hwcomposer=cutf_cvm_ashmem 
>> androidboot.hardware.egl=swiftshader androidboot.hardware.vulkan=pastel 
>> androidboot.boot_devices=pci0000:00/0000:00:01.0 
>> androidboot.serialno=CUTTLEFISHCVD011 androidboot.lcd_density=160 
>> androidboot.setupwizard_mode=DISABLED androidboot.slot_suffix=_a 
>> loop.max_part=7 enforcing=1 audit=1 androidboot.force_normal_boot=1  
>> androidboot.vsock_frames_port=2907933463 androidboot.tombstone_transmit=1 
>> androidboot.vsock_tombstone_port=2907933462 
>> androidboot.cuttlefish_config_server_port=2907933461 
>> androidboot.vsock_logcat_port=2907933460
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rwdisk=/home/SKY/cf/cuttlefish_runtime.1/overlay.img
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --socket=/home/SKY/cf/cuttlefish_runtime.1/internal/crosvm_control.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --single-touch=/home/SKY/cf/cuttlefish_runtime.1/internal/touch.sock:720:1280
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --keyboard=/home/SKY/cf/cuttlefish_runtime.1/internal/keyboard.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=35
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=37
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rw-pmem-device=/home/SKY/cf/cuttlefish_runtime.1/access-kregistry
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --disable-sandbox
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cid=3
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=1,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/kernel-log-pipe,console=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=2,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/console-pipe,stdin=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> /home/SKY/cf/cuttlefish_assembly/kernel
>>
>>
>> *[ERROR:src/main.rs:1248 <http://main.rs:1248>] The architecture failed 
>> to build the vm: error creating devices: failed to create virtual disk: 
>> failure in qcow: backing file io error: No such file or directory (os error 
>> 2)run_cvd I 03-11 13:14:54 17936 17944 process_monitor.cc:139] Detected 
>> exit of monitored subprocessrun_cvd I 03-11 13:14:54 17936 17944 
>> process_monitor.cc:147] Subprocess /home/SKY/cf/bin/crosvm (26675) has 
>> exited with exit code 1*
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:286] Started (pid: 
>> 26683): /home/SKY/cf/bin/crosvm
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] run
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --initrd=/home/SKY/cf/cuttlefish_assembly/ramdisk.img.concat
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --null-audio
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --mem=2048
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cpus=2
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --params= 
>> printk.devkmsg=on firmware_class.path=/vendor/etc/ init=/init 
>> androidboot.hardware=cutf_cvm security=selinux androidboot.console=ttyS1 
>> buildvariant=userdebug androidboot.hardware.gralloc=cutf_ashmem 
>> androidboot.hardware.hwcomposer=cutf_cvm_ashmem 
>> androidboot.hardware.egl=swiftshader androidboot.hardware.vulkan=pastel 
>> androidboot.boot_devices=pci0000:00/0000:00:01.0 
>> androidboot.serialno=CUTTLEFISHCVD011 androidboot.lcd_density=160 
>> androidboot.setupwizard_mode=DISABLED androidboot.slot_suffix=_a 
>> loop.max_part=7 enforcing=1 audit=1 androidboot.force_normal_boot=1  
>> androidboot.vsock_frames_port=2907933463 androidboot.tombstone_transmit=1 
>> androidboot.vsock_tombstone_port=2907933462 
>> androidboot.cuttlefish_config_server_port=2907933461 
>> androidboot.vsock_logcat_port=2907933460
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rwdisk=/home/SKY/cf/cuttlefish_runtime.1/overlay.img
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --socket=/home/SKY/cf/cuttlefish_runtime.1/internal/crosvm_control.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --single-touch=/home/SKY/cf/cuttlefish_runtime.1/internal/touch.sock:720:1280
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --keyboard=/home/SKY/cf/cuttlefish_runtime.1/internal/keyboard.sock
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=35
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --tap-fd=37
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --rw-pmem-device=/home/SKY/cf/cuttlefish_runtime.1/access-kregistry
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --disable-sandbox
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] --cid=3
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=1,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/kernel-log-pipe,console=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> --serial=num=2,type=file,path=/home/SKY/cf/cuttlefish_runtime.1/internal/console-pipe,stdin=true
>> run_cvd I 03-11 13:14:54 17936 17944 subprocess.cpp:289] 
>> /home/SKY/cf/cuttlefish_assembly/kernel
>> Thanks,
>> Shankar
>>
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