Today I rebooted the server and I was greeted by
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
I was able to boot the machine again with this kernel: 4.4.0-66-generic.
$ dpkg -l linux-image-\* | grep ^ii
ii linux-image-4.4.0-64-generic 4.4.0-64.85 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-66-generic 4.4.0-66.87 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-70-generic 4.4.0-70.91 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-71-generic 4.4.0-71.92 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-72-generic 4.4.0-72.93 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-75-generic 4.4.0-75.96 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-78-generic 4.4.0-78.99 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-79-generic 4.4.0-79.100 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-81-generic 4.4.0-81.104 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-4.4.0-83-generic 4.4.0-83.106 amd64 Linux kernel image for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-64-generic 4.4.0-64.85 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-66-generic 4.4.0-66.87 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-70-generic 4.4.0-70.91 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-71-generic 4.4.0-71.92 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-72-generic 4.4.0-72.93 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-75-generic 4.4.0-75.96 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-78-generic 4.4.0-78.99 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-79-generic 4.4.0-79.100 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
ii linux-image-extra-4.4.0-81-generic 4.4.0-81.104 amd64 Linux kernel extra modules for version 4.4.0 on 64 bit x86 SMP
$ sudo apt-get purge linux-image-4.4.0-64-generic
[sudo] password for plex:
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt-get -f install' to correct these:
The following packages have unmet dependencies.
linux-image-extra-4.4.0-64-generic : Depends: linux-image-4.4.0-64-generic but it is not going to be installed
linux-image-extra-4.4.0-89-generic : Depends: linux-image-4.4.0-89-generic but it is not going to be installed
linux-image-extra-4.4.0-92-generic : Depends: linux-image-4.4.0-92-generic but it is not going to be installed
linux-image-generic : Depends: linux-image-4.4.0-92-generic but it is not going to be installed
Recommends: thermald but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution).
$ sudo apt-get -f install
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-4.4.0-66 linux-headers-4.4.0-66-generic linux-headers-4.4.0-70 linux-headers-4.4.0-70-generic linux-headers-4.4.0-71 linux-headers-4.4.0-71-generic
linux-headers-4.4.0-72 linux-headers-4.4.0-72-generic linux-headers-4.4.0-75 linux-headers-4.4.0-75-generic linux-headers-4.4.0-78 linux-headers-4.4.0-78-generic
linux-headers-4.4.0-79 linux-headers-4.4.0-79-generic linux-headers-4.4.0-81 linux-headers-4.4.0-81-generic linux-headers-4.4.0-89 linux-headers-4.4.0-89-generic
linux-image-4.4.0-66-generic linux-image-4.4.0-70-generic linux-image-4.4.0-71-generic linux-image-4.4.0-72-generic linux-image-4.4.0-75-generic
linux-image-4.4.0-78-generic linux-image-4.4.0-79-generic linux-image-4.4.0-81-generic linux-image-4.4.0-89-generic linux-image-extra-4.4.0-66-generic
linux-image-extra-4.4.0-70-generic linux-image-extra-4.4.0-71-generic linux-image-extra-4.4.0-72-generic linux-image-extra-4.4.0-75-generic
linux-image-extra-4.4.0-78-generic linux-image-extra-4.4.0-79-generic linux-image-extra-4.4.0-81-generic linux-image-extra-4.4.0-89-generic
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
linux-image-4.4.0-89-generic linux-image-4.4.0-92-generic
Suggested packages:
fdutils linux-doc-4.4.0 | linux-source-4.4.0 linux-tools
The following NEW packages will be installed
linux-image-4.4.0-89-generic linux-image-4.4.0-92-generic
0 to upgrade, 2 to newly install, 0 to remove and 9 not to upgrade.
9 not fully installed or removed.
Need to get 0 B/43.9 MB of archives.
After this operation, 134 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 456942 files and directories currently installed.)
Preparing to unpack .../linux-image-4.4.0-92-generic_4.4.0-92.115_amd64.deb ...
Done.
Unpacking linux-image-4.4.0-92-generic (4.4.0-92.115) ...
dpkg: error processing archive /var/cache/apt/archives/linux-image-4.4.0-92-generic_4.4.0-92.115_amd64.deb (--unpack):
cannot copy extracted data for './boot/vmlinuz-4.4.0-92-generic' to '/boot/vmlinuz-4.4.0-92-generic.dpkg-new': failed to write (No space left on device)
No apport report written because the error message indicates a disk full error
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.0-92-generic /boot/vmlinuz-4.4.0-92-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.4.0-92-generic /boot/vmlinuz-4.4.0-92-generic
Preparing to unpack .../linux-image-4.4.0-89-generic_4.4.0-89.112_amd64.deb ...
Done.
Unpacking linux-image-4.4.0-89-generic (4.4.0-89.112) ...
dpkg: error processing archive /var/cache/apt/archives/linux-image-4.4.0-89-generic_4.4.0-89.112_amd64.deb (--unpack):
cannot copy extracted data for './boot/vmlinuz-4.4.0-89-generic' to '/boot/vmlinuz-4.4.0-89-generic.dpkg-new': failed to write (No space left on device)
No apport report written because the error message indicates a disk full error
dpkg-deb: error: subprocess paste was killed by signal (Broken pipe)
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 4.4.0-89-generic /boot/vmlinuz-4.4.0-89-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 4.4.0-89-generic /boot/vmlinuz-4.4.0-89-generic
Errors were encountered while processing:
/var/cache/apt/archives/linux-image-4.4.0-92-generic_4.4.0-92.115_amd64.deb
/var/cache/apt/archives/linux-image-4.4.0-89-generic_4.4.0-89.112_amd64.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)
Any ideas to get /boot cleaned out?
How do I keep /boot clean?
First of all thanks for your help!
My fstab:
cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
/dev/mapper/plex--vg-root / ext4 errors=remount-ro 0 1
# /boot was on /dev/sda1 during installation
UUID=6eccf367-b7e4-4f71-8a57-95446df6f9de /boot ext2 defaults 0 2
/dev/mapper/plex--vg-swap_1 none swap sw 0 0
/dev/fd0 /media/floppy0 auto rw,user,noauto,exec,utf8 0 0
//192.168.178.200/Music /music cifs credentials=/home/plex/.smbcredentials,iocharset=utf8,gid=1000,uid=1000,file_mode=0777,dir_mode=0777 0 0
//192.168.178.200/Movies /movies cifs credentials=/home/plex/.smbcredentials,iocharset=utf8,gid=1000,uid=1000,file_mode=0777,dir_mode=0777 0 0
//192.168.178.200/Series /series cifs credentials=/home/plex/.smbcredentials,iocharset=utf8,gid=1000,uid=1000,file_mode=0777,dir_mode=0777 0 0
My blkid:
blkid
/dev/sr0: UUID="2016-04-20-22-45-29-00" LABEL="Ubuntu-Server 16.04 LTS amd64" TYPE="iso9660" PTUUID="4cbe268b" PTTYPE="dos"
/dev/sda1: UUID="6eccf367-b7e4-4f71-8a57-95446df6f9de" TYPE="ext2" PARTUUID="374a8805-01"
/dev/sda5: UUID="ddN08f-uZQ3-Xl0c-eOHf-C041-0QOc-TAGIyR" TYPE="LVM2_member" PARTUUID="374a8805-05"
/dev/mapper/plex--vg-root: UUID="ed2ad2ac-3112-47aa-8357-29d34b940f23" TYPE="ext4"
/dev/mapper/plex--vg-swap_1: UUID="352400a2-e8d6-4dbf-9248-a4adc04d1592" TYPE="swap"
My df -ih:
df -ih
Filesystem Inodes IUsed IFree IUse% Mounted on
udev 741K 457 741K 1% /dev
tmpfs 746K 623 746K 1% /run
/dev/mapper/plex--vg-root 32M 1.6M 30M 6% /
tmpfs 746K 3 746K 1% /dev/shm
tmpfs 746K 3 746K 1% /run/lock
tmpfs 746K 16 746K 1% /sys/fs/cgroup
/dev/sda1 122K 351 122K 1% /boot
//192.168.178.200/Series 0 0 0 - /series
//192.168.178.200/Music 0 0 0 - /music
//192.168.178.200/Movies 0 0 0 - /movies
tmpfs 746K 4 746K 1% /run/user/1000
plex@plex:/boot$ df -h
Filesystem Size Used Avail Use% Mounted on
udev 2.9G 0 2.9G 0% /dev
tmpfs 597M 8.3M 589M 2% /run
/dev/mapper/plex--vg-root 491G 38G 428G 9% /
tmpfs 3.0G 8.0K 3.0G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 3.0G 0 3.0G 0% /sys/fs/cgroup
/dev/sda1 472M 466M 0 100% /boot
//192.168.178.200/Series 46T 39T 7.7T 84% /series
//192.168.178.200/Music 46T 39T 7.3T 85% /music
//192.168.178.200/Movies 46T 39T 7.3T 85% /movies
tmpfs 597M 0 597M 0% /run/user/1000
I've added df -h in the same pastebin. Also how do I format my outputs properly so they get displayed as Zanna edited it?
