我在 Dell inspiron-3542 机器上安装了 Ubuntu 18.04，同时安装了 Windows 10，安装似乎没问题，但每当我在 Ubuntu 中关闭时，启动画面都会挂起。我总是不得不使用电源按钮强制关机。我试过了，但GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"无济于事GRUB_CMDLINE_LINUX_DEFAULT=""。我现在收到一条消息，说根目录已满。当我使用df它时，显示以下内容：
Filesystem 1K-blocks Used Available Use% Mounted on
udev 4004600 0 4004600 0% /dev
tmpfs 805492 1952 803540 1% /run
/dev/sda8 19154168 7828000 10330124 44% /
tmpfs 4027440 53032 3974408 2% /dev/shm
tmpfs 5120 4 5116 1% /run/lock
tmpfs 4027440 0 4027440 0% /sys/fs/cgroup
/dev/loop1 189312 189312 0 100% /snap/eclipse/40
/dev/loop0 137472 137472 0 100% /snap/code/25
/dev/loop2 136704 136704 0 100% /snap/projectlibre/3
/dev/loop3 93568 93568 0 100% /snap/core/8689
/dev/loop4 4352 4352 0 100% /snap/tree/18
/dev/loop5 3840 3840 0 100% /snap/gnome-system-monitor/127
/dev/loop6 75904 75904 0 100% /snap/breaktimer/19
/dev/loop7 93568 93568 0 100% /snap/core/8592
/dev/loop8 164096 164096 0 100% /snap/gnome-3-28-1804/116
/dev/loop9 4352 4352 0 100% /snap/gnome-calculator/544
/dev/loop10 1024 1024 0 100% /snap/gnome-logs/81
/dev/loop11 46080 46080 0 100% /snap/gtk-common-themes/1440
/dev/loop12 15104 15104 0 100% /snap/gnome-characters/399
/dev/loop13 56064 56064 0 100% /snap/core18/1668
/dev/sda10 70607032 5089168 61888144 8% /home
/dev/sda1 507904 32548 475356 7% /boot/efi
tmpfs 805488 16 805472 1% /run/user/121
tmpfs 805488 40 805448 1% /run/user/1000
当我运行时sudo du -sh /* | sort -rh，输出是：
du: cannot access '/proc/3142/task/3142/fd/4': No such file or directory
du: cannot access '/proc/3142/task/3142/fdinfo/4': No such file or directory
du: cannot access '/proc/3142/fd/3': No such file or directory
du: cannot access '/proc/3142/fdinfo/3': No such file or directory
du: cannot access '/run/user/1000/doc': Permission denied
du: cannot access '/run/user/1000/gvfs': Permission denied
4.9G /home
4.2G /usr
3.2G /snap
2.6G /var
622M /lib
91M /boot
14M /etc
13M /bin
12M /sbin
2.0M /run
124K /tmp
88K /root
16K /lost+found
8.0K /media
4.0K /srv
4.0K /opt
4.0K /mnt
4.0K /lib64
4.0K /cdrom
0 /vmlinuz.old
0 /vmlinuz
0 /sys
0 /proc
0 /initrd.img.old
0 /initrd.img
0 /dev
我也尝试过在恢复模式下运行 Ubuntu，并尝试执行，fsck但它说/dev/sda8已安装。我试过了，umount /dev/sda8但它说它仍然处于活动状态。我可以卸载 /dev/sda8，但我是 Linux 新手，不想弄坏我的笔记本电脑。请你告诉我该怎么做。
更新 - 显示英特尔 GPU 的使用信息
(intel_gpu_top:5781) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:5781) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:5781) intel-mmio-CRITICAL: Last errno: 1, Operation not permitted
(intel_gpu_top:5781) intel-mmio-CRITICAL: Couldn't map MMIO region
Stack trace:
#0 [_init+0x7b87]
#1 [_init+0x5420]
#2 [_init+0xe85]
#3 [__libc_start_main+0xe7]
#4 [_init+0x1c92]
Test (null) failed.
**** DEBUG ****
(intel_gpu_top:5781) intel-chipset-DEBUG: Test requirement passed: pci_dev
(intel_gpu_top:5781) intel-mmio-CRITICAL: Test assertion failure function intel_mmio_use_pci_bar, file ../../lib/intel_mmio.c:145:
(intel_gpu_top:5781) intel-mmio-CRITICAL: Failed assertion: !(error != 0)
(intel_gpu_top:5781) intel-mmio-CRITICAL: Last errno: 1, Operation not permitted
(intel_gpu_top:5781) intel-mmio-CRITICAL: Couldn't map MMIO region
(intel_gpu_top:5781) igt-core-INFO: Stack trace:
(intel_gpu_top:5781) igt-core-INFO: #0 [_init+0x7b87]
(intel_gpu_top:5781) igt-core-INFO: #1 [_init+0x5420]
(intel_gpu_top:5781) igt-core-INFO: #2 [_init+0xe85]
(intel_gpu_top:5781) igt-core-INFO: #3 [__libc_start_main+0xe7]
(intel_gpu_top:5781) igt-core-INFO: #4 [_init+0x1c92]
**** END ****
FAIL (-1.000s)
它失败了什么？我该如何解决这个问题？
答案1
我更新了 BIOS，似乎解决了启动画面挂起问题。但是，我的磁盘使用情况分析器仍报告根目录已满，并显示红色条，并且根目录中的某些文件夹无法扫描。我知道我的分区还远未饱和，因为我扩展了卷，df显示使用量约为 1%。