/boot has become 100% full somehow.
df -k
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/mapper/ubuntu-root 191078052 31758960 149612804 18% /
udev 3997520 8 3997512 1% /dev
tmpfs 1602244 856 1601388 1% /run
none 5120 0 5120 0% /run/lock
none 4005600 1792 4003808 1% /run/shm
none 102400 28 102372 1% /run/user
/dev/sda1 233191 218740 2010 100% /boot
mount
/dev/mapper/ubuntu-root on / type ext4 (rw,errors=remount-ro)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
none on /sys/fs/fuse/connections type fusectl (rw)
none on /sys/kernel/debug type debugfs (rw)
none on /sys/kernel/security type securityfs (rw)
udev on /dev type devtmpfs (rw,mode=0755)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=0620)
tmpfs on /run type tmpfs (rw,noexec,nosuid,size=10%,mode=0755)
none on /run/lock type tmpfs (rw,noexec,nosuid,nodev,size=5242880)
none on /run/shm type tmpfs (rw,nosuid,nodev)
none on /run/user type tmpfs (rw,noexec,nosuid,nodev,size=104857600,mode=0755)
/dev/sda1 on /boot type ext2 (rw)
binfmt_misc on /proc/sys/fs/binfmt_misc type binfmt_misc (rw,noexec,nosuid,nodev)
vmware-vmblock on /run/vmblock-fuse type fuse.vmware-vmblock (rw,nosuid,nodev,default_permissions,allow_other)
gvfsd-fuse on /run/user/foo/gvfs type fuse.gvfsd-fuse (rw,nosuid,nodev,user=foo)
How can I make the space allocated to /boot bigger?
There is a related question How do I free up more space in /boot? but that is not what I want to do.
Added.
Disk /dev/sda: 200.0 GB, 200049647616 bytes
255 heads, 63 sectors/track, 24321 cylinders, total 390721968 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x0007f9dc
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 499711 248832 83 Linux
/dev/sda2 501758 390721535 195109889 5 Extended
/dev/sda5 501760 390721535 195109888 8e Linux LVM
Disk /dev/mapper/ubuntu-root: 198.8 GB, 198784843776 bytes
255 heads, 63 sectors/track, 24167 cylinders, total 388251648 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ubuntu-root doesn't contain a valid partition table
Disk /dev/mapper/ubuntu-swap_1: 1006 MB, 1006632960 bytes
255 heads, 63 sectors/track, 122 cylinders, total 1966080 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000
Disk /dev/mapper/ubuntu-swap_1 doesn't contain a valid partition table
There are 2 parts to this:
Open a terminal and run
ls /boot
If boot is full of old kernels you can go remove happy on them, I recommend keeping the original, the latest and the one before latest. The lowest number is normally the shipping kernel, the highest number will be the latest.
To grow boot you first need to shrink another partition so you have free space. I would suggest using the GParted partition editor on a live Ubuntu USB to do this. First decrease the size of
/
or/home
depending on your setup. Then increase the size of/boot
.I assume this Linux machine is a VM.
Expand the SCSI device by 1GB on VM sphere centre or AWS, etc, so
/dev/sda
gets an additional 1GB of space.Reboot the server to single user mode. Use
fdisk -l /dev/sda
to confirm the new size with additional 1GB.Use
fdisk /dev/sda
to create an sda3 partition with 1GB. Save the partition table. Ubuntu will require partprobe to update the partition table. Now run:Now update
/etc/fstab
(be sure to make a backup copy, just in case need to boot from CDROM/DVD to recover), update the line to mount/dev/sda3
on/boot
(and comment the line for/dev/sda1
)Mount
/boot
df -k
should see/boot
is 1GB now, but you need to make it the default boot device.Use
fdisk /dev/sda
, and pressp
to print the partition table. You will see/dev/sda1
is the default boot device.Use the
a
command infdisk
to disable/dev/sda1
as default boot device and again to enable/dev/sda3
as default boot device.p
to show partition table.Reboot
After you've been online for sometime, if you feel you want to utilize the 200MB of
/dev/sda1
, just recreate/dev/sda1
and put into any VG you want.