因为我的jetson nano的sd卡上有一点空间，所以我在Ubuntu 18.04 x64位上安装了nfs服务器，并在jetson nano上安装了ubuntu 18.04 for arm64上的nfs公共客户端。我已经遵循了这个教程：
https://www.howtoing.com/install-nfs-server-on-ubuntu/
我已发出以下命令：
在服务器端：
sudo chown -R nobody:nogroup /home/loziomario/Scrivania/Nano/qemu-chroot-I9
chmod -R 777 /home/loziomario/Scrivania/Nano/qemu-chroot-I9
在客户端/jetson nano方面：
sudo chown -R nobody:nogroup /root/Scrivania/Work/qemu-chroot-I9
chmod -R 777 /root/Scrivania/Work/qemu-chroot-I9
然后我创建了一个像这样的脚本：
xhost +
sudo mount 192.168.1.6:/home/loziomario/Scrivania/Nano/qemu-chroot-I9 /root/Scrivania/Work/qemu-chroot-I9
sudo mount -t sysfs /sys/ /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/sys/
sudo mount -t proc /proc/ /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/proc/
sudo mount --bind /dev /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/dev/
sudo mount --bind /dev/pts /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/dev/pts/
sudo mount --bind /dev/shm /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/dev/shm/
我已使用以下命令登录 chroot：
sudo chroot /root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/ /bin/su -l root
Ok.
我尝试更新和升级 i386 chroot 的软件包，结果是这样的：
apt update
.......
Run 'apt list --upgradable' to see it.
W: chown to _apt:root of directory /var/lib/apt/lists/partial failed
- SetupAPTPartialDirectory (1: Operation not permitted)
W: chown to _apt:root of directory /var/lib/apt/lists/auxfiles failed -
SetupAPTPartialDirectory (1: Operation not permitted)
W: Not using locking for nfs mounted lock file /var/lib/apt/lists/lock
W: Download is performed unsandboxed as root as file '/var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_bionic_InRelease' couldn't be accessed by user '_apt'. -
pkgAcquire::Run (13: Permission denied)W: chown to root:root of file /var/lib/apt/lists/partial/it.archive.ubuntu.com_ubuntu_dists_bionic_InRelease failed - Operation not permitted)
root@ziomario-desktop:~# apt upgrade
Reading package lists... DoneBuilding dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded: teamviewer1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 15.6 MB of archives. After this operation, 0 B of additional disk space will be used.
W: Not using locking for nfs mounted lock file /var/lib/dpkg/lock-frontendW: Not using locking for nfs mounted lock file /var/lib/dpkg/lockW:
chown to _apt:root of directory /var/cache/apt/archives/partial failed
- SetupAPTPartialDirectory (1: Operation not permitted)
W: chown to _apt:root of directory /var/lib/apt/lists/auxfiles failed
- SetupAPTPartialDirectory (1: Operation not permitted)
W: Not using locking for nfs mounted lock file /var/cache/apt/archives/lock
Do you want to continue? [Y/n]
权限有问题吗？我不明白出了什么问题。
这就是我在服务器端配置 NFS 的方式：
sudo nano /etc/exports
/home/loziomario/Scrivania/Nano/qemu-chroot-I9 192.168.1.3(rw,sync,no_subtree_check)
在哪里 ：
192.168.1.3: 是nano的ip
/home/loziomario/Scrivania/Nano/qemu-chroot-I9：我只想让 Nano 的 IP 号码可用的文件夹
在客户端/纳米方面我做了：
sudo mount 192.168.1.6:/home/loziomario/Scrivania/Nano/qemu-chroot-I9 /root/Scrivania/Work/qemu-chroot-I9
在哪里 ：
192.168.1.6：是服务器的IP，ubuntu 18.04 64位
/home/loziomario/Scrivania/Nano/qemu-chroot-I9：是我想要让>可用于client-nano的服务器的文件夹
/root/Scrivania/work/qemu-chroot-I9：是我想要挂载>服务器的文件夹的文件夹
这是保存 chroot i386 的混合完整（网络）路径，我想通过 nano 访问它：
/root/Scrivania/Work/qemu-chroot-I9/chroot-bionic-i386/
我希望一切都清楚，并且有人可以给我一些好的建议来解决我遇到的权限问题。谢谢。