Can't upgrade due to low disk space on /boot


Hi all,

I've encountered a circular problem whilst trying to do a kernel
update for Ubuntu 10.04 & was wondering if anyone can help. The update
failed on one of the kernel packages, with the log message reported a
disk full error. The log is included below. I found several old kernel
packages, and tried to remove them, but apt-get failed with the

$ sudo apt-get purge linux-headers-2.6.32-33-generic

You might want to run `apt-get -f install' to correct these:
The following packages have unmet dependencies:
linux-headers-2.6.32-40-generic: Depends: linux-headers-2.6.32-40
but it is not going to be installed
E: Unmet dependencies. Try 'apt-get -f install' with no packages (or
specify a solution).

Obviously I can't fix the packages due to the disk space problem, and
perusing the manpages and some blogs didn't locate option (I am sick
as a dog, so may have missed...

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I already tried to delete older files but when the job ran next it failed complaining that it could not write to the file that I deleted. It was a .VIB file. I have attached a screenshot of my current file chain if you're curious.

I use forward incremental mode because I am backing up Netware servers and it was highly recommended to use that mode.

I was able to increase the mapped LUN in order for my volume to have more space. The backup ran "better" in that about 75% of my VMs appeared to backup successfully but I eventually ran out of space yet again. I increased the mapped LUN yet again (twice as much as the last increase) in hopes that the job will complete tonight and process the change I made to the number of restore points to keep (I changed from 5 to 4 restore points).

If I end up running out of space yet again tonight I may just delete everything and start over with a "new" job.

Thanks for the replys...

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This test verifies upgrading a Fedora system from the current stable release (Fedora 24) to the branched release (Fedora 25) using PreUpgrade. Verification will confirm that is able to detect and recover the low disk space condition below:

Insufficient disk space on /boot partition for anaconda to install a new kernel Perform an installation of the current stable release (e.g. Fedora 24) with default partitioning (200MB for /boot). Install another kernel on the system. You can locate and download older kernel from the koji build system or by using a koji. For example, the following commands will list available kernels, download a specified kernel package from koji and install it: # yum install koji # koji list-tagged dist-f12-updates kernel # koji download-build --arch $(uname -p) kernel- # yum localupdate kernel* --nogpgcheck Install the newest available version of . Run preupgrade from a command prompt or the Run Application dialog. Provide the...
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I asked one of our engineers for a bit more information on this and he passed along the following...

We used the Q: drive on Win7 preloads to store the recovery partition. The Q drive is sized specifically to contain the recovery image, with enough extra space to avoid this “low space” warning from Windows.

If the “low space” warning starts appearing, it could indicate that something additional has been written to the Q drive.

A best practice is to double-click on the Q: drive and follow the on-screen prompts to create the recovery disks and recover the drive space (which deletes the Q: drive and adds the space to C. Then this situation won’t happen.

One of the comments in this thread indicates this message occurs after upgrading to Win10, so I checked that here (Win7->Win10 upgrade). Q drive remains after upgrade, but the process to create Win7 recovery doesn’t work (it is blocked by Microsoft). So the only way to delete Q drive at this...

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If you have had issues installing the 10041 and/or the 10049 builds of the Windows 10 Technical Preview due to low storage space, Microsoft has posted a workaround that might solve that problem.

Some Windows Insider members have been reporting that the two recent builds of the Windows 10 preview either cannot install at all due to "insufficient disk space" or that the amount of time needed to install the builds takes much longer than usual, with some taking hours to complete.

If that sounds similar to your experience, Microsoft says in a community forum post that your issues may be due to a bug that is causing some installs of Windows 10 to also include all of the operating system's language packs. The issues are also causing some files to appear on the desktop or in File Explorer.

Basically, the solution is simply to get rid of any language packs that you don't think you will need. Microsoft offers the procedure for this file deletion:

Open a...
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Now that OS X Yosemite is available, many users may wish to create a bootable installer drive from something like a USB flash thumb drive or another disk. This allows for several things, the ability to upgrade multiple Macs without having to re-download the installer, the ability to perform a clean install, and also the convenience of having a separate bootable reinstallation drive in the event you need it for serving a Mac.

Creating a Yosemite installation drive that is bootable is quite simple, but it’s a multiple step process. Before you begging, make sure you have the following basic requirements met:


Of course, we’re assuming the destination Mac(s) that are going to get Yosemite are compatible. Basically, if the Mac is capable of running OS X Mavericks, it is capable of running OS X Yosemite too.

How to Create a Bootable OS X Yosemite Installer Disk in 2 Steps

For the purposes of this walkthrough, we’re...

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When upgrading to Windows 10 from Windows 7 or Windows 8.1, you may receive the so annoying error message “We couldn’t update the system reserved partition” and have to stop the upgrade with great unwillingness. Well, have you found the exact cause for this error or do you know how to clear the very roadblock for successful upgrade? If you haven’t got any good idea, please read this post, and we will give lots of details, along with 2 solutions which have been proved to work flawlessly.

2 Possible Reasons Why Windows 10 Upgrade Couldn’t Update System Reserved Partition

From the descriptive message we know system reserved partition is the very chief culprit. Well then, what’s going on with this partition? After a series of tests we found 2 possible reasons for this error:
Reason 1: There is something wrong with the file system of system reserved partition.
Reasons 2: No enough space in system reserved partition for the upgrade.

Now that the possible reasons...

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This question already has an answer here:

I am running Ubuntu Server 14.04 LTS on a desktop at my home that I was intending to turn into a server, but I never really did much on it. I then decided to turn it into a send-only SMPT server, but when I tried sudo apt-get install postfix to install postfix, I got this error:

You might want to run 'apt-get -f install' to correct these: The following packages have unmet dependencies: linux-image-extra-3.19.0-42-generic : Depends: linux-image-3.19.0-42-generic but it is not going to be installed linux-image-extra-3.19.0-56-generic : Depends: linux-image-3.19.0-56-generic but it is not going to be installed linux-image-generic-lts-vivid : Depends: linux-image-3.19.0-56-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).

I tried running sudo apt-get -f install, but that didn't...

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Reader Question:
“Hi Wally, I am having problems with Low Disk Space and wondering how to fix it?” - Kayla F., United Kingdom

Before addressing any computer issue, I always recommend scanning and repairing any underlying problems affecting your PC health and performance:

Step 1 : Download PC Repair & Optimizer Tool (WinThruster for Win7, XP, Vista – Microsoft Gold Certified). Step 2 : Click “Start Scan” to find Windows registry issues that could be causing PC problems. Step 3 : Click “Repair All” to fix all issues.

Setting up weekly (or daily) automatic scans will help prevent system problems and keep your PC running fast and trouble-free.

Wally’s Answer:

Overview of Low Disk Space / PC Clutter

We've all experienced the frustration of hard drive issues at some point, and unfortunately, it's usually when you're short on time and doing something important.

Computers tend to work slower over time due to regular, everyday use such...

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Your /boot partition is filled with old kernels. It does that sometimes, not sure why it is never fixed. You can easily remove the old kernels if you know which packages they came in.

First check uname -a to check your current version.

Then run the following command:

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d'

This command will list all packages that you no longer need. I don't like removing them automatically, I like to be in control when it comes to removing kernels. So for every package listed do the following:

sudo apt-get -y purge some-kernel-package


This intermezzo describes in more detail how the commands work and tries to fix an issue with linux-libc-dev:amd64. Most users can skip this paragraph.

dpkg -l 'linux-*' list all packages that have a name starting with 'linux-' sed '/^ii/!d; remove all lines that do *not* start withii` uname...
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Hi there.

My problem is actually worse than it sounds I think. I have an MSI CX61 and recently I noticed that my Nvidia GPU was no longer detected by my device manager. Now I know that it works because I can see it working when I open my laptop up. I called MSI to ask what I should do and they suggested that I re install windows 8.

I have windows 8 o a USB and when I tried installing it, I got and error message saying I couldn't install the OS because my laptop's hard disk is a GPT.

I have found a way to convert it to MBR, but the program will not let me do so because it can't convert my OS_install partition without losing data and therefore rendering the program useless.

I have thought about wiping the disk completely and then booting windows directly from the USB but that would mean losing a partition called BIOS_RVY, which I am not sure exactly what purpose it serves. It is quite a big partition, almost 10 GB.

My worry is that by wiping...

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Low Disk Space Warning: Ignore, Disable, or Obey?

One of the most annoying aspects of Windows is those warning messages that seem to pop up at the most inconvenient times. Although they are designed to warn you when potentially dangerous circumstances arise, some of these warnings are benign and can be closed without taking any actions. And there's the problem... as a result of so many warning messages, and due to a general fear of ANYTHING that pops up on the screen, some users tend to ignore ALL of them. And that can be bad. Sometimes.

One specific warning that computer users will see on a fairly regular basis as their hard drive fills up is the Low Disk Space warning: "You are running out of disk space on Local Disk [drive]. To free space on this drive by deleting old or unnecessary files, click here." So is this one important? Can you ignore it, disable it, or will doing so put your computer at risk?

What is the "Low Disk Space...

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Based on the context of the original message, I'm guessing Patricia doesn't know what a partition is, or that this can even be done to hard drives (and she wouldn't be alone; I'd guess 99% of computer users who've never done any of their own computer work and have simply bought them and had someone else do all the drive and OS installations, etc., don't know about such things).

So we need to begin by explaining partitions, but I fear that by the time we get where we're going, if Patricia is like the average computer user, she may be either too scared or confused to go any further, and the advice to call the friend who installed the drive and have them take a look may be the best bet.

If not, Patricia, in essence, each "partition" of a hard drive is, as far as the computer's operating system is concerned, a SEPARATE HARD DRIVE. So you could have ONE big hard drive in your computer (and even now 2 TB is still a fairly substantial drive size), but when you look on...

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You've a lot unused kernels. Remove all but the last kernels with:

sudo apt-get purge linux-image-{3.0.0-12,2.6.3{1-21,2-25,8-{1[012],8}}}

This is shorthand for:

sudo apt-get purge linux-image-3.0.0-12 linux-image-2.6.31-21 linux-image-2.6.32-25 linux-image-2.6.38-10 linux-image-2.6.38-11 linux-image-2.6.38-12 linux-image-2.6.38-8

Removing the linux-image-x.x.x-x package will also remove linux-image-x.x.x-x-generic.

The headers are installed into /usr/src and are used when building out-tree kernel modules (like the proprietary nvidia driver and virtualbox). Most users should remove these header packages if the matching kernel package (linux-image-*) is not installed.

To list all installed kernels, run:

dpkg -l linux-image-\* | grep ^ii

One command to show all kernels and headers that can be removed, excluding the current running kernel:

kernelver=$(uname -r | sed -r 's/-[a-z]+//') dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' |...
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This post is about disk space and the disk space “consumed” by Windows 7. Disk space is the sort of thing where everyone wants to use less, but the cost of using a bit more relative to the benefits has generally been a positive tradeoff. Things have changed recently with the availability of solid-state drives in capacities significantly smaller than the trend in spinning drives. Traditionally most all software, including Windows, would not hesitate to consume a 100MB on a specific (justified) need when looking at a 60GB (or 1,500GB) drive; with desirable machines shipping with 16GB of solid-state storage, we are looking carefully at the disk space used by Windows—both at setup time and also as a PC “ages”. We also had a specific session at WinHEC on solid-state drives that might be interesting to folks. This post is authored by Michael Beck, a program manager in the core OS deployment feature team. –Steven

Let’s talk about “footprint”. For the purposes of this post, when I...

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Note: this answer is meant to be more of an 'explanation' than providing the best/easiest way to remove old kernels. For the best/easiest way to remove old kernels, please review the other answers.

Okay, so from the output of /etc/fstab you posted, it seems that your /boot is mounted on a separate partition, and from the output of df -h, that partition is full. This is because there are old kernels installed that are not needed; you can tell that by looking at the output of dpkg -l | grep linux-image that you posted, where you can see more than one "linux-image" with different versions. We need to remove the old versions.

First, I want you to run the command uname -r in a terminal, this will show you the kernel version you are currently using. We never want to remove that kernel version. The command will say something like this 3.5.0-26-generic. Take a note of that number, 26! The following commands will assume that that's the kernel you're running.


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We may be on Day 53 since the last public release of a Windows 10 Technical Preview build but we are learning more about Windows 10 storage and recovery options thanks to the Windows Team.

In a post over at the Blogging Windows Site, How Windows 10 achieves its compact footprint, they address the influx of smaller sized Windows devices that are starting to become the norm. Many of these systems have small disk storage options, come with more power efficient processors which tend to be slower than your typical desktop CPU’s and usually have only 1 or 2 gigabytes of system memory.

You would think that this combination of items would cause these inexpensive systems to run like molasses yet they run pretty decently like the HP Stream 7 for instance.

Now you will not be running Call of Duty on these devices, and that is not what they are meant for anyway, but you will be able to use them as solid consumption devices and even be able to create content using Office...

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It's not recommended to disable Hibernation on Windows 8, as it is used for the Fast Startup feature. Upon shutdown, the Fast Startup feature closes the user sessions, but hibernates the kernel session to hiberfil.sys. This system state is then used to speed up the next boot.

Windows allocates an equivalent amount of your system’s RAM to hiberfil.sys. So, if you have a lot of RAM, hiberfil.sys will be larger than it needs to be for Fast Start. To remedy this, open an elevated Command Prompt and issue "powercfg.exe /hibernate /size 50" to set hiberfil.sys to 50% of installed RAM. (You can't reduce it below 50%)

However, if you leave your computer on all the time, or rarely reboot, you might not care about Fast Startup and can turn off Hibernation. Then again, HDD's and even SSD's now are so cheap, space isn't as big an issue as with your IBM AT....

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