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几周以来，我无法在 Debian Jessie 8.7 上更新/安装任何内容。当我执行 apt-get Upgrade （或安装/删除任何软件包）时，会出现如下错误。任何帮助，将不胜感激
Extracting templates from packages: 100%
Preconfiguring packages ...
Setting up udev (215-17+deb8u7) ...
addgroup: The group `input' already exists as a system group. Exiting.
update-initramfs: deferring update (trigger activated)
insserv: warning: script 'lprng' missing LSB tags and overrides
insserv: warning: script 'lpd' missing LSB tags and overrides
insserv: warning: script 'cupsys' missing LSB tags and overrides
insserv: There is a loop between service minidlna and lprng if stopped
insserv: loop involving service lprng at depth 2
insserv: loop involving service minidlna at depth 1
insserv: Stopping lprng depends on minidlna and therefore on system facility `$all' which can not be true!
insserv: Stopping lpd depends on minidlna and therefore on system facility `$all' which can not be true!
insserv: Stopping cupsys depends on minidlna and therefore on system facility `$all' which can not be true!
insserv: exiting now without changing boot order!
update-rc.d: error: insserv rejected the script header
dpkg: error processing package udev (--configure):
subprocess installed post-installation script returned error exit status 1
Processing triggers for initramfs-tools (0.120+deb8u2) ...
update-initramfs: Generating /boot/initrd.img-3.16.0-4-amd64
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-3.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8411-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8411-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8402-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168f-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168f-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8105e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-3.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168e-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-2.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168d-1.fw for module r8169
Errors were encountered while processing:
udev
E: Sub-process /usr/bin/dpkg returned an error code (1)
apt-cache 策略返回以下内容：
Package files:
100 /var/lib/dpkg/status
release a=now
500 http://www.scootersoftware.com/ bcompare4/non-free amd64 Packages
release o=Scooter Software,a=stable,n=bcompare4,l=Scooter Software,c=non-free
origin www.scootersoftware.com
500 http://dl.google.com/linux/talkplugin/deb/ stable/main amd64 Packages
release v=1.0,o=Google, Inc.,a=stable,n=stable,l=Google,c=main
origin dl.google.com
500 http://dl.google.com/linux/earth/deb/ stable/main amd64 Packages
release v=1.0,o=Google, Inc.,a=stable,n=stable,l=Google,c=main
origin dl.google.com
500 http://download.videolan.org/pub/debian/stable/ Packages
release o=videolan,a=stable,n=stable,l=videolan,c=
origin download.videolan.org
500 http://security.debian.org/ jessie/updates/main Translation-en
500 http://security.debian.org/ jessie/updates/main amd64 Packages
release v=8,o=Debian,a=stable,n=jessie,l=Debian-Security,c=main
origin security.debian.org
500 http://ftp.us.debian.org/debian/ jessie-updates/main Translation-en
500 http://ftp.us.debian.org/debian/ jessie-updates/main amd64 Packages
release o=Debian,a=stable-updates,n=jessie-updates,l=Debian,c=main
origin ftp.us.debian.org
500 http://ftp.de.debian.org/debian/ jessie-backports/main Translation-en
100 http://ftp.de.debian.org/debian/ jessie-backports/main amd64 Packages
release o=Debian Backports,a=jessie-backports,n=jessie-backports,l=Debian Backports,c=main
origin ftp.de.debian.org
500 http://ftp.us.debian.org/debian/ jessie/non-free Translation-en
500 http://ftp.us.debian.org/debian/ jessie/main Translation-en
500 http://ftp.us.debian.org/debian/ jessie/contrib Translation-en
500 http://ftp.us.debian.org/debian/ jessie/non-free amd64 Packages
release v=8.8,o=Debian,a=stable,n=jessie,l=Debian,c=non-free
origin ftp.us.debian.org
500 http://ftp.us.debian.org/debian/ jessie/contrib amd64 Packages
release v=8.8,o=Debian,a=stable,n=jessie,l=Debian,c=contrib
origin ftp.us.debian.org
500 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages
release v=8.8,o=Debian,a=stable,n=jessie,l=Debian,c=main
origin ftp.us.debian.org
Pinned packages:
具体来说，对于minidlna和lprng：
root@Frederic:/home/frederic# apt-cache policy minidlna lprng
minidlna:
Installed: (none)
Candidate: 1.1.2+dfsg-1.1+b3
Version table:
1.1.2+dfsg-1.1+b3 0
500 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages
100 /var/lib/dpkg/status
lprng:
Installed: (none)
Candidate: 3.8.B-2
Version table:
3.8.B-2 0
500 http://ftp.us.debian.org/debian/ jessie/main amd64 Packages
答案1
minidlna和initscriptslprng导致了您所看到的问题。由于它们不再安装（如 的输出所示apt-cache policy），您应该只清除软件包 - 这将删除不再需要的初始化脚本：
dpkg --purge minidlna lprng
（在这种情况下，initscripts 的一个大问题是它们不再升级，因此它们不再接收错误修复，但 initscript 依赖项解析器仍然会考虑它们。）