我正在使用bleachbit然后系统卡住了它不工作我强制关闭现在当我重新启动时我无法进入登录屏幕我进入tty并发现系统没有剩余空间。请帮帮我，我在根分区中有很多重要文件
我有 ubuntu 18.04 LTS，我想获得 BleachBit，当我尝试通过命令行时，我收到以下错误消息：
Preconfiguring packages ...
(Reading database ... 168709 files and directories currently installed.)
Removing linux-image-4.15.0-20-generic (4.15.0-20.21) ...
/etc/kernel/postrm.d/initramfs-tools:
update-initramfs: Deleting /boot/initrd.img-4.15.0-20-generic
/etc/kernel/postrm.d/zz-update-grub:
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE)
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)
(EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE)
(EE) Server terminated with error (1). Closing log file.
run-parts: /etc/kernel/postrm.d/zz-update-grub exited with return code 1
dpkg: error processing package linux-image-4.15.0-20-generic (--remove):
installed linux-image-4.15.0-20-generic package post-removal script subprocess returned error exit status 1
Errors were encountered while processing:
linux-image-4.15.0-20-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)
这是 Xorg.0.log 中的内容：
[ 2545.601] _XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
[ 2545.602] _XSERVTransMakeAllCOTSServerListeners: server already running
[ 2545.602] (EE)
Fatal server error:
[ 2545.603] (EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)
[ 2545.603] (EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
[ 2545.604] (EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
[ 2545.604] (EE)
[ 2545.604] (EE) Server terminated with error (1). Closing log file.
我曾经sudo service lightdm stop尝试杀死 xserver 并得到“无法停止 lightdm.service：未加载单元 lightdm.service。”
当我尝试从网站安装时，我在通知中收到此错误消息：“无法安装 BleachBit：安装包时出错：安装的 linux-image-4.15.0-20-generic 包删除后脚本子进程返回错误退出状态1"
所以我在这里不知所措。当我查找错误消息时，我没有找到任何可以帮助我的东西。在尝试安装 ffmpeg 时，我也遇到了同样的命令行错误。我将不胜感激任何帮助。谢谢。
编辑：我去了 wiki.x.org，到https://www.x.org/wiki/FAQErrorMessages/，它说尝试netstat -ln但未找到命令 netstat，我在尝试安装时收到相同的错误消息.
EDIT2：cat /etc/apt/sources.list返回：
# deb cdrom:[Ubuntu 18.04 LTS _Bionic Beaver_ - Release amd64 (20180426)]/ bionic main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic main restricted
## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates main restricted
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ bionic universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic universe
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates universe
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ bionic multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic multiverse
deb http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-updates multiverse
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ bionic-backports main restricted universe multiverse
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu bionic partner
# deb-src http://archive.canonical.com/ubuntu bionic partner
deb http://security.ubuntu.com/ubuntu bionic-security main restricted
# deb-src http://security.ubuntu.com/ubuntu bionic-security main restricted
deb http://security.ubuntu.com/ubuntu bionic-security universe
# deb-src http://security.ubuntu.com/ubuntu bionic-security universe
deb http://security.ubuntu.com/ubuntu bionic-security multiverse
deb http://archive.canonical.com/ bionic partner
# deb-src http://archive.canonical.com/ bionic partner
# deb-src http://security.ubuntu.com/ubuntu bionic-security multiverse
EDIT3：sudo dpkg --configure -a && sudo apt update --fix-missing -y && sudo apt install -f -y && sudo apt full-upgrade -y返回：
Setting up linux-image-4.15.0-29-generic (4.15.0-29.31) ...
Processing triggers for linux-image-4.15.0-29-generic (4.15.0-29.31) ...
/etc/kernel/postinst.d/initramfs-tools:
update-initramfs: Generating /boot/initrd.img-4.15.0-29-generic
/etc/kernel/postinst.d/zz-update-grub:
_XSERVTransSocketUNIXCreateListener: ...SocketCreateListener() failed
_XSERVTransMakeAllCOTSServerListeners: server already running
(EE)
Fatal server error:
(EE) Cannot establish any listening sockets - Make sure an X server isn't already running(EE)
(EE)
Please consult the The X.Org Foundation support
at http://wiki.x.org
for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for additional information.
(EE)
(EE) Server terminated with error (1). Closing log file.
run-parts: /etc/kernel/postinst.d/zz-update-grub exited with return code 1
dpkg: error processing package linux-image-4.15.0-29-generic (--configure):
installed linux-image-4.15.0-29-generic package post-installation script subprocess returned error exit status 1
Errors were encountered while processing:
linux-image-4.15.0-29-generic
EDIT4：输出cat /etc/default/grub为：
# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
# info -f grub -n 'Simple configuration'
GRUB_DEFAULT=0
#GRUB_HIDDEN_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT_QUIET=true
GRUB_TIMEOUT=10
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_idle.max_cstate=1"
GRUB_CMDLINE_LINUX=""
# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"
# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console
# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
#GRUB_GFXMODE=640x480
# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true
# Uncomment to disable generation of recovery mode menu entries
#GRUB_DISABLE_RECOVERY="true"
# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"
X
sudo update-grub
X
X
sudo update-grub
我最近在漂白位中遇到 2 个错误
最近的文档列表 0
错误：system.memory：功能：内存
回溯（最近一次通话最后）：
文件“/usr/share/bleachbit/Worker.py”，第 83 行，在执行中
对于 cmd.execute(self.really_delete) 中的 ret：
文件“/usr/share/bleachbit/Command.py”，第 147 行，在执行中
对于 self.func() 中的 func_ret：
文件“/usr/share/bleachbit/Memory.py”，第 302 行，在wipe_memory
擦除交换linux（设备，proc_swaps）
文件“/usr/share/bleachbit/Memory.py”，第 274 行，wipe_swap_linux
logger.info(_("正在擦除交换设备 %s。"), device)
UnboundLocalError：分配前引用的局部变量“_”
覆盖可用磁盘空间 /root/.cache 0
我试图弄清楚如何通过带有 Bleach Bit 的 Ubuntu 16.04 上的命令行运行“擦除可用磁盘空间”。看起来bleachbit 命令实用程序只能擦除特定的缓存。有人对如何做到这一点有任何想法吗？
如果我想为用户编辑bleachbit 配置文件，我可以访问：
.config/bleachbit/bleachbit.ini
如果我以 root 身份运行bleachbit GUI，它比我以用户身份运行bleachbit 有更多的选项。我在“bleachbit.ini”中找不到这些“额外”选项。
root的bleachbit配置文件在哪里？（Ubuntu 18.04）
在我运行BleachBit后，PDF、EPUB、JPG 和 PNG 的文件关联被重置为系统的默认值（我使用的是 Windows，所以默认值为 Microsoft Edge 或 Windows Image Viewer）。
我不知道要勾选哪个选项以防止BleachBit重置文件关联。我在软件或网上找不到任何有关此的信息。
任何想法？
我的猜测是该选项是其中之一：
我想粉碎一个文件，使其无法恢复。我通常使用命令'bleachbit -s file'。当我搜索它时，我发现 ext4 中的日志在其他地方复制了文件，即使在文件被粉碎后也不会删除。在另一个论坛上，有人说日志生成的文件在一段时间后会自行删除。
这是真的吗？我是否可以只信任 Bleachbit 来擦除我的文件，知道它们在一段时间后将无法恢复，或者日志功能使其无用，因为即使在此之后，它们仍然可以恢复？
对不起，如果这是一个愚蠢的问题。我对Linux有点陌生，但仍然不太了解。对不起我的英语，我更像是一个读者而不是作家。
在我问之前，让我说我理解它是如何工作的，所以我有 0 字节可用这一事实并不让我感到惊讶，因为我在 Bleachbit 做它的时候关闭了计算机。
但现在我想手动删除这些文件。我在哪里可以找到它们？我删除了 ~/tmp 和一些属于 ~/. Bleachbit 说它已经写了 4 个文件。
我今天在我的 Ubuntu 服务器上试用了 Bleachbit。但是，它似乎正在尝试擦除可用空间，这需要很多时间，而且我不需要它。
如何让 Bleachbit 不从命令行擦除可用空间？