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ubuntu not enough free space

I went to do updates today and I got the following message. Seems my /boot partition doesn’t have enough space to update to the newest kernel.

Seems autoremove isn’t working. This is easy to fix, but the potential for n00b disaster is high. First, get your current kernel version by issuing:

 uname -r
3.13.0-33-generic

Now let’s go to /boot and take a look at what’s taking up all the room /boot:

cd /boot
ls
total 152330
drwxr-xr-x 4 root root 3072 Aug 12 17:41 .
drwxr-xr-x 23 root root 4096 Aug 12 17:41 ..
-rw-r--r-- 1 root root 1161764 Jun 4 16:57 abi-3.13.0-29-generic
-rw-r--r-- 1 root root 1162257 Jul 4 17:18 abi-3.13.0-30-generic
-rw-r--r-- 1 root root 1162712 Jul 14 23:29 abi-3.13.0-32-generic
-rw-r--r-- 1 root root 1162712 Jul 29 12:41 abi-3.13.0-33-generic
-rw-r--r-- 1 root root 165544 Jun 4 16:57 config-3.13.0-29-generic
-rw-r--r-- 1 root root 165576 Jul 4 17:18 config-3.13.0-30-generic
-rw-r--r-- 1 root root 165611 Jul 14 23:29 config-3.13.0-32-generic
-rw-r--r-- 1 root root 165611 Jul 29 12:41 config-3.13.0-33-generic
drwxr-xr-x 5 root root 1024 Aug 12 17:41 grub
-rw-r--r-- 1 root root 28137510 Jun 13 08:43 initrd.img-3.13.0-29-generic
-rw-r--r-- 1 root root 28189493 Jul 6 09:09 initrd.img-3.13.0-30-generic
-rw-r--r-- 1 root root 28223565 Jul 23 16:24 initrd.img-3.13.0-32-generic
-rw-r--r-- 1 root root 28222396 Aug 12 17:41 initrd.img-3.13.0-33-generic
drwx------ 2 root root 12288 May 22 13:20 lost+found
-rw-r--r-- 1 root root 176500 Mar 12 07:31 memtest86+.bin
-rw-r--r-- 1 root root 178176 Mar 12 07:31 memtest86+.elf
-rw-r--r-- 1 root root 178680 Mar 12 07:31 memtest86+_multiboot.bin
-rw------- 1 root root 3378267 Jun 4 16:57 System.map-3.13.0-29-generic
-rw------- 1 root root 3378641 Jul 4 17:18 System.map-3.13.0-30-generic
-rw------- 1 root root 3381262 Jul 14 23:29 System.map-3.13.0-32-generic
-rw------- 1 root root 3381262 Jul 29 12:41 System.map-3.13.0-33-generic
-rw------- 1 root root 5792544 Jun 4 16:57 vmlinuz-3.13.0-29-generic
-rw------- 1 root root 5792608 Jul 4 17:18 vmlinuz-3.13.0-30-generic
-rw------- 1 root root 5798112 Jul 14 23:29 vmlinuz-3.13.0-32-generic
-rw------- 1 root root 5798688 Jul 29 12:41 vmlinuz-3.13.0-33-generic

Yep, a whole bunch o’ files, previous kernels that I no longer need. Let’s delete them by purging them with apt-get. Remember, don’t delete your current kernel!

sudo apt-get purge linux-image-3.13.0-29-generic
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
linux-image-3.13.0-29-generic* linux-image-extra-3.13.0-29-generic*
0 upgraded, 0 newly installed, 2 to remove and 15 not upgraded.
After this operation, 193 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 347115 files and directories currently installed.)
Removing linux-image-extra-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
update-initramfs: Deleting /boot/initrd.img-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.13.0-33-generic
Found initrd image: /boot/initrd.img-3.13.0-33-generic
Found linux image: /boot/vmlinuz-3.13.0-32-generic
Found initrd image: /boot/initrd.img-3.13.0-32-generic
Found linux image: /boot/vmlinuz-3.13.0-30-generic
Found initrd image: /boot/initrd.img-3.13.0-30-generic
Found linux image: /boot/vmlinuz-3.13.0-29-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
done
Purging configuration files for linux-image-extra-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Removing linux-image-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
update-initramfs: Deleting /boot/initrd.img-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
Generating grub configuration file ...
Warning: Setting GRUB_TIMEOUT to a non-zero value when GRUB_HIDDEN_TIMEOUT is set is no longer supported.
Found linux image: /boot/vmlinuz-3.13.0-33-generic
Found initrd image: /boot/initrd.img-3.13.0-33-generic
Found linux image: /boot/vmlinuz-3.13.0-32-generic
Found initrd image: /boot/initrd.img-3.13.0-32-generic
Found linux image: /boot/vmlinuz-3.13.0-30-generic
Found initrd image: /boot/initrd.img-3.13.0-30-generic
Found memtest86+ image: /memtest86+.elf
Found memtest86+ image: /memtest86+.bin
done
Purging configuration files for linux-image-3.13.0-29-generic (3.13.0-29.53) ...
Examining /etc/kernel/postrm.d .
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
run-parts: executing /etc/kernel/postrm.d/zz-update-grub 3.13.0-29-generic /boot/vmlinuz-3.13.0-29-generic
# 

Gone! Now do those updates.