更新到4.15.0-29.31 Ubuntu 18.04，我的wifi和以太网停止工作
我做了一个更新，其中包括内核升级，之后我的Wifi和以太网停止工作。 我尝试了一些命令，包括Ubuntu建议的命令：
$ sudo apt-get install -f Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following packages were automatically installed and are no longer required: linux-headers-4.15.0-23 linux-headers-4.15.0-23-generic linux-image-4.15.0-23-generic linux-modules-4.15.0-23-generic linux-modules-extra-4.15.0-23-generic linux-tools-4.15.0-23 linux-tools-4.15.0-23-generic Use 'sudo apt autoremove' to remove them. The following additional packages will be installed: linux-modules-extra-4.15.0-29-generic The following NEW packages will be installed: linux-modules-extra-4.15.0-29-generic 0 upgraded, 1 newly installed, 0 to remove and 1 not upgraded. 3 not fully installed or removed. Need to get 0 B/32.7 MB of archives. After this operation, 171 MB of additional disk space will be used. Do you want to continue? [Y/n] Y (Reading database ... 325661 files and directories currently installed.) Preparing to unpack .../linux-modules-extra-4.15.0-29-generic_4.15.0-29.31_amd64.deb ... Unpacking linux-modules-extra-4.15.0-29-generic (4.15.0-29.31) ... dpkg: error processing archive /var/cache/apt/archives/linux-modules-extra-4.15.0-29-generic_4.15.0-29.31_amd64.deb (--unpack): unable to open '/lib/modules/4.15.0-29-generic/kernel/drivers/media/radio/radio-raremono.ko.dpkg-new': Operation not permitted Segmentation fault 我可以连接的唯一方法是重新启动并从GRUB菜单中选择以前的内核。 那么我怎样才能解决这个“分段错误”。 或者修正“不允许操作”？
$ cat /proc/mounts sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0 proc /proc proc rw,nosuid,nodev,noexec,relatime 0 0 udev /dev devtmpfs rw,nosuid,relatime,size=1933644k,nr_inodes=483411,mode=755 0 0 devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0 tmpfs /run tmpfs rw,nosuid,noexec,relatime,size=392836k,mode=755 0 0 /dev/sda2 / ext4 rw,relatime,errors=remount-ro,data=ordered 0 0 securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0 tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0 tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0 tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0 cgroup /sys/fs/cgroup/unified cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0 cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,name=systemd 0 0 pstore /sys/fs/pstore pstore rw,nosuid,nodev,noexec,relatime 0 0 efivarfs /sys/firmware/efi/efivars efivarfs rw,nosuid,nodev,noexec,relatime 0 0 cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0 cgroup /sys/fs/cgroup/memory cgroup rw,nosuid,nodev,noexec,relatime,memory 0 0 cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0 cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0 cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0 cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0 cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0 cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_cls,net_prio 0 0 cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0 cgroup /sys/fs/cgroup/hugetlb cgroup rw,nosuid,nodev,noexec,relatime,hugetlb 0 0 cgroup /sys/fs/cgroup/rdma cgroup rw,nosuid,nodev,noexec,relatime,rdma 0 0 systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=35,pgrp=1,timeout=0,minproto=5,maxproto=5,direct,pipe_ino=13989 0 0 mqueue /dev/mqueue mqueue rw,relatime 0 0 debugfs /sys/kernel/debug debugfs rw,relatime 0 0 hugetlbfs /dev/hugepages hugetlbfs rw,relatime,pagesize=2M 0 0 fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0 configfs /sys/kernel/config configfs rw,relatime 0 0 /dev/loop1 /snap/gnome-calculator/178 squashfs ro,nodev,relatime 0 0 /dev/loop0 /snap/core/4830 squashfs ro,nodev,relatime 0 0 /dev/loop2 /snap/0ad/18 squashfs ro,nodev,relatime 0 0 /dev/loop3 /snap/vlc/365 squashfs ro,nodev,relatime 0 0 /dev/loop5 /snap/gnome-3-26-1604/64 squashfs ro,nodev,relatime 0 0 /dev/loop4 /snap/googler/50 squashfs ro,nodev,relatime 0 0 /dev/loop6 /snap/0ad/30 squashfs ro,nodev,relatime 0 0 /dev/loop7 /snap/nmap/29 squashfs ro,nodev,relatime 0 0 /dev/loop8 /snap/gnome-calculator/170 squashfs ro,nodev,relatime 0 0 /dev/loop9 /snap/notepad-plus-plus/77 squashfs ro,nodev,relatime 0 0 /dev/loop10 /snap/canonical-livepatch/41 squashfs ro,nodev,relatime 0 0 /dev/loop11 /snap/gnome-characters/103 squashfs ro,nodev,relatime 0 0 /dev/loop13 /snap/gtk-common-themes/319 squashfs ro,nodev,relatime 0 0 /dev/loop14 /snap/core/4650 squashfs ro,nodev,relatime 0 0 /dev/loop15 /snap/gnome-logs/34 squashfs ro,nodev,relatime 0 0 /dev/loop12 /snap/core/4917 squashfs ro,nodev,relatime 0 0 /dev/loop16 /snap/pdftk-smoser/18 squashfs ro,nodev,relatime 0 0 /dev/loop17 /snap/gnome-logs/31 squashfs ro,nodev,relatime 0 0 /dev/loop20 /snap/canonical-livepatch/39 squashfs ro,nodev,relatime 0 0 /dev/loop18 /snap/qcomicbook/1 squashfs ro,nodev,relatime 0 0 /dev/loop19 /snap/gnome-characters/96 squashfs ro,nodev,relatime 0 0 /dev/loop21 /snap/ufw/95 squashfs ro,nodev,relatime 0 0 /dev/loop22 /snap/skype/45 squashfs ro,nodev,relatime 0 0 /dev/loop24 /snap/communitheme/575 squashfs ro,nodev,relatime 0 0 /dev/loop27 /snap/audovia/57 squashfs ro,nodev,relatime 0 0 /dev/loop28 /snap/hashit/324 squashfs ro,nodev,relatime 0 0 /dev/loop29 /snap/gnome-logs/37 squashfs ro,nodev,relatime 0 0 /dev/loop33 /snap/gnome-3-26-1604/62 squashfs ro,nodev,relatime 0 0 /dev/loop25 /snap/toilet-deej/1 squashfs ro,nodev,relatime 0 0 /dev/loop26 /snap/ufw/14 squashfs ro,nodev,relatime 0 0 /dev/loop30 /snap/gnome-calculator/180 squashfs ro,nodev,relatime 0 0 /dev/loop31 /snap/gnome-characters/101 squashfs ro,nodev,relatime 0 0 /dev/loop32 /snap/communitheme/614 squashfs ro,nodev,relatime 0 0 /dev/loop23 /snap/communitheme/533 squashfs ro,nodev,relatime 0 0 /dev/loop34 /snap/vlc/190 squashfs ro,nodev,relatime 0 0 /dev/loop38 /snap/gnome-system-monitor/41 squashfs ro,nodev,relatime 0 0 /dev/loop42 /snap/gnome-system-monitor/45 squashfs ro,nodev,relatime 0 0 /dev/loop35 /snap/skype/41 squashfs ro,nodev,relatime 0 0 /dev/loop36 /snap/pdftk/1 squashfs ro,nodev,relatime 0 0 /dev/loop37 /snap/gnome-3-26-1604/70 squashfs ro,nodev,relatime 0 0 /dev/loop40 /snap/notepad-plus-plus/74 squashfs ro,nodev,relatime 0 0 /dev/loop39 /snap/notepad-plus-plus/70 squashfs ro,nodev,relatime 0 0 /dev/loop43 /snap/gnome-system-monitor/51 squashfs ro,nodev,relatime 0 0 /dev/loop41 /snap/skype/38 squashfs ro,nodev,relatime 0 0 /dev/loop44 /snap/freemind/2 squashfs ro,nodev,relatime 0 0 /dev/sda1 /boot/efi vfat rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro 0 0 binfmt_misc /proc/sys/fs/binfmt_misc binfmt_misc rw,relatime 0 0 tmpfs /run/user/119 tmpfs rw,nosuid,nodev,relatime,size=392832k,mode=700,uid=119,gid=125 0 0 tmpfs /run/snapd/ns tmpfs rw,nosuid,noexec,relatime,size=392836k,mode=755 0 0 nsfs /run/snapd/ns/canonical-livepatch.mnt nsfs rw 0 0 nsfs /run/snapd/ns/ufw.mnt nsfs rw 0 0 tmpfs /run/user/1000 tmpfs rw,nosuid,nodev,relatime,size=392832k,mode=700,uid=1000,gid=1000 0 0 gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
$ readlink /proc/self/root /
现在挂在这里… sudo dpkg –configure -a设置bcmwl-kernel-source（6.30.223.271 + bdcom-0ubuntu4）…删除旧的bcmwl-6.30.223.271 + bdcom DKMS文件…
——–卸载开始——–模块：bcmwl版本：6.30.223.271 + bdcom
内核：4.15.0-24-generic（x86_64）
状态：此模块版本对于此内核是非活动的。 depmod ….
DKMS：卸载完成。
删除模块版本：6.30.223.271 + bdcom
完全来自DKMS树。
完成。 正在加载新的bcmwl-6.30.223.271 + bdcom DKMS文件…构建用于4.15.0-24-generic 4.15.0-29-generic用于体系结构的构建x86_64构建用于4.15.0-24-generic <<<<<的初始模块<<<
在从4.15.0-23更新到4.15.0-29之后，我丢失了wifi（在使用Intel Centrino Wireless-N 100 wifi适配器的Acer Aspire One上）。 通过GRUB菜单，我重新启动到-23，其中wifi仍然有效，并使用了几天。
从这个post ，我用过
apt policy linux-generic
并发现内核4.15.0-30现已发布。 我更新到+ wifi再次工作。
我还从系统中删除了-29：
sudo apt remove linux-image-4.15.0-29-generic linux-headers-4.15.0-29-generic
然后
sudo update-grub2
所以我现在在GRUB菜单中的系统+上有内核版本-23和-30。