I want to virtualize correctly Android 10 on top of my Jetson nano (arm64) using qemu and kvm on ubuntu 18.04. This is the tutorial that I’m following :
https://github.com/antmicro/kvm-aosp-jetson-nano
everything went good until this command :
sudo rsync -avxHAX system-r{o,w}/
https://pastebin.ubuntu.com/p/W9GjPCt8G4/
the consequence of these errors is that when I try to emulate android with qemu like this :
qemu-system-aarch64 \
-enable-kvm \
-smp 4 \
-m 2048 \
-cpu host \
-M virt \
-device virtio-gpu-pci \
-device usb-ehci \
-device usb-kbd \
-device virtio-tablet-pci \
-usb \
-serial stdio \
-display sdl,gl=on \
-kernel aosp/Image \
-initrd aosp/ramdisk.img \
-drive index=0,if=none,id=system,file=aosp/system.img \
-device virtio-blk-pci,drive=system \
-drive index=1,if=none,id=vendor,file=aosp/vendor.img \
-device virtio-blk-pci,drive=vendor \
-drive index=2,if=none,id=userdata,file=aosp/userdata.img \
-device virtio-blk-pci,drive=userdata \
-full-screen \
-append "console=ttyAMA0,38400 earlycon=pl011,0x09000000 drm.debug=0x0 rootwait rootdelay=5 androidboot.hardware=ranchu androidboot.selinux=permissive security=selinux selinux=1 androidboot.qemu.hw.mainkeys=0 androidboot.lcd.density=160"
[ 2.532754] init: init first stage started!
[ 2.535936] init: [libfs_mgr]ReadFstabFromDt(): failed to read fstab from dt
[ 2.540632] init: [libfs_mgr]ReadDefaultFstab(): failed to find device default fstab
[ 2.546246] init: Failed to fstab for first stage mount
[ 2.549616] init: Using Android DT directory /proc/device-tree/firmware/android/
[ 2.555116] init: [libfs_mgr]ReadDefaultFstab(): failed to find device default fstab
[ 2.560762] init: First stage mount skipped (missing/incompatible/empty fstab in device tree)
[ 2.566906] init: Skipped setting INIT_AVB_VERSION (not in recovery mode)
[ 2.571227] init: execv("/system/bin/init") failed: No such file or directory
[ 2.593768] init: #00 pc 00000000000e90a0 /init
[ 2.599958] reboot: Restarting system with command 'bootloader'
UUID=84d024e0-c8c7-42c0-ad3e-c3e0c1cacdb7 / ext4 acl,user_xattr,noatime,errors=remount-ro 0 1
UUID=84d024e0-c8c7-42c0-ad3e-c3e0c1cacdb7 / ext4 defaults,acl,user_xattr,noatime,errors=remount-ro 0 1
sending incremental file list
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/bin": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/bugreports": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/charger": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/d": Operation not supported (95)
.....
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/system/usr/icu": Operation not supported (95)
sent 109,493 bytes received 1,223 bytes 221,432.00 bytes/sec
total size is 1,354,488,586 speedup is 12,233.90
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1330) [sender=3.2.3]
root@Z390-AORUS-PRO:/home/ziomario/Scrivania/antmicro/aosp_images# sudo mount -o remount,acl /
root@Z390-AORUS-PRO:/home/ziomario/Scrivania/antmicro/aosp_images# sudo rsync -avxHAX system-r{o,w}/
sending incremental file list
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/bin": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/bugreports": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/system-rw/charger": Operation not supported (95)
On the source file system there is a symlink called “d”. This is its “stat” ;
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images/system-ro$ stat d
File: d -> /sys/kernel/debug
Size: 17 Blocks: 0 IO Block: 4096 symbolic link
Device: 715h/1813d Inode: 19 Links: 1
Access: (0644/lrw-r--r--) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-04-05 17:50:13.000000000 +0200
Modify: 2021-04-05 17:50:13.000000000 +0200
Change: 2021-04-05 17:50:13.000000000 +0200
Birth: 2021-04-05 17:50:27.000000000 +0200
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images$ sudo rsync -avxHAX system-r{o,w}/d
sending incremental file list
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/d": Operation not supported (95)
d -> /sys/kernel/debug
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/d": Operation not supported (95)
sent 110 bytes received 20 bytes 260.00 bytes/sec
total size is 17 speedup is 0.13
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1330)
[sender=3.2.3]
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images/system-rw$ stat d
File: d -> /sys/kernel/debug
Size: 17 Blocks: 0 IO Block: 4096 symbolic link
Device: 714h/1812d Inode: 4148 Links: 1
Access: (0777/lrwxrwxrwx) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-04-08 00:51:00.699158895 +0200
Modify: 2021-04-05 17:50:13.000000000 +0200
Change: 2021-04-08 00:48:37.187748517 +0200
Birth: 2021-04-08 00:48:37.187748517 +0200
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images$ sudo rsync -avxHAX system-r{o,w}/odm
sending incremental file list
created directory system-rw/odm
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/app": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/bin": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/etc": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/firmware": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/framework": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/lib": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/lib64": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/overlay": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/priv-app": Operation not supported (95)
rsync: [generator] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/sys
tem-rw/odm/odm/usr": Operation not supported (95)
odm/
odm/app -> /vendor/odm/app
odm/bin -> /vendor/odm/bin
odm/etc -> /vendor/odm/etc
odm/firmware -> /vendor/odm/firmware
odm/framework -> /vendor/odm/framework
odm/lib -> /vendor/odm/lib
odm/lib64 -> /vendor/odm/lib64
odm/overlay -> /vendor/odm/overlay
odm/priv-app -> /vendor/odm/priv-app
odm/usr -> /vendor/odm/usr
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/app": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/bin": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/etc": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/firmware": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/framework": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/lib": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/lib64": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/overlay": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/priv-app": Operation not supported (95)
rsync: [receiver] failed to set permissions on "/home/ziomario/Scrivania/antmicro/aosp_images/syst
em-rw/odm/odm/usr": Operation not supported (95)
sent 742 bytes received 96 bytes 1,676.00 bytes/sec
total size is 172 speedup is 0.21
rsync error: some files/attrs were not transferred (see previous errors) (code 23) at main.c(1330)
[sender=3.2.3]
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images/system-ro$ stat odm
File: odm
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 715h/1813d Inode: 37 Links: 2
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-04-05 16:08:38.000000000 +0200
Modify: 2021-04-05 16:08:38.000000000 +0200
Change: 2021-04-05 16:08:38.000000000 +0200
Birth: 2021-04-05 17:50:27.000000000 +0200
ziomario@Z390-AORUS-PRO:~/Scrivania/antmicro/aosp_images/system-rw$ stat odm
File: odm
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: 714h/1812d Inode: 8205 Links: 3
Access: (0755/drwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2021-04-08 00:59:21.666709924 +0200
Modify: 2021-04-08 00:59:21.670709992 +0200
Change: 2021-04-08 00:59:21.670709992 +0200
Birth: 2021-04-08 00:59:21.666709924 +0200
10 items, totalling 172 bytes
contents of the odm folder on destination :
11 items, totalling 4.3 kB
there is something that’s not good,with the permissions and with the size.
check the images below. The first one is the source fs. The second one is the destination fs. Can you see the differences ?
source :
https://forum.syncthing.net/uploads/default/original/2X/7/7ab1f108db31e4e9ad34b6be3bb7ba344657a7ea.png
destination :
https://forum.syncthing.net/uploads/default/original/2X/d/d6b3200041e5136b7f6a425f9e232a312011a707.png
Since no-one is able to help me to fix this issues and,also,it seems that there aren’t fixes for this problem,I’m looking for an alternative,for a tool similar to rsync. Googling a little bit I’ve found freefilesync. Anyway I’m not really sure that it works like I need. I should sync the files and permissions from the read only file system called “system-ro” to the destination file system called “system-rw” as explained on the tutorial,here :
mkdir {system,vendor}-r{o,w}
dd if=/dev/zero of=system-rw.img bs=512 count=6291456
mkfs.ext4 system-rw.img -L "/"
sudo mount system-rw.img system-rw
sudo mount out/target/product/generic_arm64/system.img system-ro -o ro
----> sudo rsync -avxHAX system-r{o,w}/
sudo umount system-r{o,w}
mv system-rw.img out/target/product/generic_arm64/system.img