我遇到了问题。我将尽可能准确地解释这个问题。我在 VirtualBox 6.1.2 版本上运行 Ubuntu 19.10。
问题看起来像这样：
当我尝试登录我的 Gnu/Linux 帐户时，它看起来好像可以正常工作，但又让我直接回到登录屏幕。登录凭据是正确的，因为我可以使用我的密码使用“Ubuntu Wayland”登录并获得我需要的任何 sudo 权限。
AFAIK，由于来宾和主机之间错误安装了共享文件夹，我过去已经遇到过此类问题。在这种情况下，它安装在我的主文件夹上。我认识的人通过正确安装我的主文件夹和共享文件夹解决了问题。我想这次也是同样的问题。
我尝试安装访客附加功能以使双向复制和粘贴功能正常工作。当我尝试导航到 /home/user/ 目录时，它告诉我它无法读取内容并且我无权访问它。
我对 Gnu/Linux 很陌生，因此我需要一些帮助来了解如何mount从终端使用。
这是我mount在终端使用时得到的信息。
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
udev on /dev type devtmpfs (rw,nosuid,relatime,size=4047160k,nr_inodes=1011790,mode=755)
devpts on /dev/pts type devpts (rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000)
tmpfs on /run type tmpfs (rw,nosuid,noexec,relatime,size=815328k,mode=755)
/dev/mapper/vgubuntu-root on / type ext4 (rw,relatime,errors=remount-ro)
securityfs on /sys/kernel/security type securityfs (rw,nosuid,nodev,noexec,relatime)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
tmpfs on /run/lock type tmpfs (rw,nosuid,nodev,noexec,relatime,size=5120k)
tmpfs on /sys/fs/cgroup type tmpfs (ro,nosuid,nodev,noexec,mode=755)
cgroup2 on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime,nsdelegate)
cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,xattr,name=systemd)
pstore on /sys/fs/pstore type pstore (rw,nosuid,nodev,noexec,relatime)
bpf on /sys/fs/bpf type bpf (rw,nosuid,nodev,noexec,relatime,mode=700)
cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory)
cgroup on /sys/fs/cgroup/rdma type cgroup (rw,nosuid,nodev,noexec,relatime,rdma)
cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpu,cpuacct)
cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer)
cgroup on /sys/fs/cgroup/pids type cgroup (rw,nosuid,nodev,noexec,relatime,pids)
cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices)
cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio)
cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset)
cgroup on /sys/fs/cgroup/net_cls,net_prio type cgroup (rw,nosuid,nodev,noexec,relatime,net_cls,net_prio)
cgroup on /sys/fs/cgroup/perf_event type cgroup (rw,nosuid,nodev,noexec,relatime,perf_event)
cgroup on /sys/fs/cgroup/hugetlb type cgroup (rw,nosuid,nodev,noexec,relatime,hugetlb)
systemd-1 on /proc/sys/fs/binfmt_misc type autofs (rw,relatime,fd=33,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=7894)
mqueue on /dev/mqueue type mqueue (rw,nosuid,nodev,noexec,relatime)
debugfs on /sys/kernel/debug type debugfs (rw,nosuid,nodev,noexec,relatime)
hugetlbfs on /dev/hugepages type hugetlbfs (rw,relatime,pagesize=2M)
fusectl on /sys/fs/fuse/connections type fusectl (rw,nosuid,nodev,noexec,relatime)
configfs on /sys/kernel/config type configfs (rw,nosuid,nodev,noexec,relatime)
/var/lib/snapd/snaps/atom_246.snap on /snap/atom/246 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/stickynotes_627.snap on /snap/stickynotes/627 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/zenkit_5.snap on /snap/zenkit/5 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/telegram-desktop_994.snap on /snap/telegram-desktop/994 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-logs_81.snap on /snap/gnome-logs/81 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_8689.snap on /snap/core/8689 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk2-common-themes_9.snap on /snap/gtk2-common-themes/9 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_544.snap on /snap/gnome-calculator/544 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_116.snap on /snap/gnome-3-28-1804/116 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1440.snap on /snap/gtk-common-themes/1440 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-calculator_501.snap on /snap/gnome-calculator/501 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core_8592.snap on /snap/core/8592 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/vlc_1397.snap on /snap/vlc/1397 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/chromium-ffmpeg_15.snap on /snap/chromium-ffmpeg/15 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_375.snap on /snap/gnome-characters/375 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-characters_399.snap on /snap/gnome-characters/399 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gnome-3-28-1804_110.snap on /snap/gnome-3-28-1804/110 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/stickynotes_446.snap on /snap/stickynotes/446 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/inkscape_5874.snap on /snap/inkscape/5874 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1668.snap on /snap/core18/1668 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/telegram-desktop_1038.snap on /snap/telegram-desktop/1038 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/core18_1650.snap on /snap/core18/1650 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/skype_112.snap on /snap/skype/112 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/zenkit_4.snap on /snap/zenkit/4 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/vlc_1049.snap on /snap/vlc/1049 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk-common-themes_1353.snap on /snap/gtk-common-themes/1353 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/atom_247.snap on /snap/atom/247 type squashfs (ro,nodev,relatime,x-gdu.hide)
/var/lib/snapd/snaps/gtk2-common-themes_5.snap on /snap/gtk2-common-themes/5 type squashfs (ro,nodev,relatime,x-gdu.hide)
/dev/sr0 on /media/linux/VBox_GAs_6.1.2 type iso9660 (ro,nosuid,nodev,relatime,nojoliet,check=s,map=n,blocksize=2048,uid=1000,gid=1000,dmode=500,fmode=400,uhelper=udisks2)
VMShare on /home/linux type vboxsf (rw,nodev,relatime,iocharset=utf8,uid=0,gid=998,dmode=0770,fmode=0770,tag=VBoxAutomounter)
tmpfs on /run/user/1000 type tmpfs (rw,nosuid,nodev,relatime,size=815324k,mode=700,uid=1000,gid=1000)
gvfsd-fuse on /run/user/1000/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,relatime,user_id=1000,group_id=1000)
grep当我为 时，这就是它给我的vbox。
root@linux-VirtualBox:~# mount | grep vbox
VMShare on /home/linux type vboxsf (rw,nodev,relatime,iocharset=utf8,uid=0,gid=998,dmode=0770,fmode=0770,tag=VBoxAutomounter)
答案1
你没说你做了什么，所以以下都是猜测。
正如你所说，你可能弄乱了你的主目录。不可能像你那样做，要么使用 root 要么使用 sudo。以 root 身份连接并环顾四周。检查 的权限/home/user。用例如修复chmod u+rwx /home/user。 （我认为这不太可能）。
更有可能的是您的 shell 的启动文件损坏，例如.profile、.bashrc等。再次以root身份（因为您无法登录，请将它们移至eg.profile.save并再次尝试登录。这应该可以工作，但您的自定义内容消失了。对于每个文件检查eg if . .profile.save（不，第一个“.”没有错误，它要求读取并执行文件的内容）如果是，则返回；如果不是，则进行编辑。