My /boot partition hit 100% and now I can't upgrade. Can't remove old kernels to make room

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I am running 12.04 LTS on a ASUS custom build server. I apologize in advance as my skills are a bit rusty in linux as I spend more time working with networking gear these days.

I am running sudo apt-get upgrade after I ran sudo apt-get update and I get the follwoing:

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-server : Depends: linux-image-3.2.0-39-generic but it is not installed linux-server : Depends: linux-headers-server (= 3.2.0.39.47) but 3.2.0.40.48 is installed E: Unmet dependencies. Try using -f.

So when I run sudo apt-get -f install I get the following:

Reading package lists... Done Building dependency tree Reading state information... Done Correcting dependencies... Done The following package was automatically installed and is no longer...
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This question already has an answer here:

Upon running the command apt-get upgrade I get the following output. I have searched the forums and have ran various commands to clean up /boot but it still seems like I don't have enough room. The current size of /boot is 240972 and I am at 97% usage even though I have tried multiple commands to free up more. Thanks in advanced for any help.

Output from apt-get upgrade:

Reading package lists... Done Building dependency tree Reading state information... Done Calculating upgrade... Done 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. 2 not fully installed or removed. After this operation, 0 B of additional disk space will be used. Do you want to continue? [Y/n] Setting up linux-image-extra-3.19.0-37-generic (3.19.0-37.42~14.04.1) ... run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 3.19.0-37-generic /boot/vmlinuz-3.19.0-37-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools...
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I have two "Healthy (Recovery Partition)"s and a "Healthy (EFI System Partition)" that were not there when I got my laptop and that I cannot delete. I have a Windows 8 laptop (recently updated to 8.1) and about a week ago I decided to dual boot "Ubuntu 13.04". I only gave it a small 18.55GB partition of my hard drive as I wanted to use Windows as my main OS and Ubuntu simply to make and Linux versions of games that I create. I noticed after doing so that it added a "Healthy (Recovery Partition)" to the beginning of the drive (the first one listed).

I could never get it to be added to the Windows boot loader correctly with EasyBCD and I had to keep going to the boot options to pick the GRUB2 and then Ubuntu. I really didn't want to keep doing this and I was having some problems with Ubuntu video drivers as well. I figured that I would just use a different computer for Ubuntu so I took it off of my laptop and formatted the partition it was on. It worked okay but there was...

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El Capitan on the Skylake NUC (6i3SYK, 6i3SYH, 6i5SYK, 6i5SYH)

Other NUC guides, in case you're not looking for the Skylake model:


What Works and Doesn't
You should install OS X 10.11.4 or higher to avoid problems with the integrated graphics (this guide last updated for 10.11.6).

Overall, with the latest BIOS and OS X, the NUC works quite well. The major problem is that all present Skylake models include soldered WiFi/Bluetooth, and at least the WiFi part of that does not yet have OS X drivers. (There is an effort underway to port a driver, but it's a long-term kind of thing.)

Working:

Audio via headphone jack Video via mini-DisplayPort (including 4K at 3840x2160 or 1080P retina, but NOT higher retina settings) Video via HDMI (including 4K at 3840x2160 or 1080P retina, but NOT higher retina settings) m.2 SSDs including SATA, PCIe, and NVMe Ethernet networking USB3 Power saving, sleep, etc. Has issues:
Bluetooth. Driver loads but...
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Back to the homepage

Before you start: is it wise to upgrade at all, yet?

1. Linux Mint 17.x is still supported until April, 2019. So if you're running 17.x now, it's wise to consider if you really want to upgrade at all, yet.... After all, you can afford to wait for some time.

It's safest to upgrade before April, 2017 though.

A clean upgrade is best, so avoid the upgrade option

2. The best way to go from the older Mint 17 series to the newer Mint 18 series, is to apply a clean upgrade. Which means: format the hard disk partition on which the older version resides, and install the later version cleanly on that empty partition.

This reduces pollution, diminishes the risk of complications and is undoubtedly the fastest way to do it.

Only upgrading within a particular Mint series is safe and easy. Within a series, you can simply upgrade the older version to the later one by selecting the upgrade option in Update...

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In my case, the apt commands and dpkg command could not finish, and could not remove. The autoupdate had failed on installing 2.6.32-56-server.

My first step, was to identify space to be used,

cd /boot du -sk *|sort -n

I had about 30 kernels and supporting files.

I did a uname -a to get the running kernel, I identified that I was on Linux alternate 2.6.32-43-server and did a tar of 6 of the versions that were not running, and were old.

tar -cvf ~username/boot.tar *2.6.32-44-server *2.6.32-45-server *2.6.32-46-server *2.6.32-47-server *2.6.32-48-server *2.6.32-49-server

I then did a rm -rf of what I had backed up

rm -rf *2.6.32-44-server *2.6.32-45-server *2.6.32-46-server *2.6.32-47-server *2.6.32-48-server *2.6.32-49-server

I am showing these commands as examples, you will have to decide what you will work with for your situation.

Now that I had some space on /boot, I was able to run

apt-get -f install

To clean up the failed...

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