Public bug reported:

I (re)installed Kubuntu 14.10 with the partitioning option "Guided - Use
entire disk and set up encrypted LVM" on an empty disk. After the final
reboot, the partiton table shown below was created.

The EFI partition was created with 512 MB and the boot partition with
256 MB. From previous experiences is a 256 MB boot partition too small
and tends to fill up with old kernels (it is filled up to 50% with only
two kernels already). OTOH is a EFI partition with 512 MB quite big for
the data usage I see.

IMO the sizes would make more sense the other way round: 256 MB EFI and
512 MB boot.


root@slpn-nb-mss:~# sfdisk -d /dev/sda
label: gpt
label-id: D6AB39C1-6A31-41D2-ADC7-7D8EBEADB20B
device: /dev/sda
unit: sectors
first-lba: 34
last-lba: 937703054

/dev/sda1 : start=        2048, size=     1048576, 
type=C12A7328-F81F-11D2-BA4B-00A0C93EC93B, 
uuid=DBE2960E-6316-4F84-9A04-53D1A80AF4B7, name="EFI System Partition"
/dev/sda2 : start=     1050624, size=      499712, 
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, 
uuid=9ABC6B6A-C4FA-4372-BF61-5713FA67F858
/dev/sda3 : start=     1550336, size=   936151040, 
type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, 
uuid=D65DFD07-4F34-4CAE-B7F2-03040C2AE900
root@slpn-nb-mss:~# df -h | grep /dev/sda
/dev/sda2       237M  109M  116M  49% /boot
/dev/sda1       511M  3,4M  508M   1% /boot/efi

ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: ubiquity (not installed)
ProcVersionSignature: Ubuntu 4.2.0-22.27-generic 4.2.6
Uname: Linux 4.2.0-22-generic x86_64
ApportVersion: 2.19.1-0ubuntu3
Architecture: amd64
Date: Sat Jan  2 21:41:01 2016
InstallCmdLine: BOOT_IMAGE=/casper/vmlinuz.efi file=/cdrom/preseed/kubuntu.seed 
boot=casper maybe-ubiquity quiet splash ---
InstallationDate: Installed on 2016-01-02 (0 days ago)
InstallationMedia: Kubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: ubiquity (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug ubiquity-2.21.37 wily

** Summary changed:

- Too small boot partition and too large EFI partition created with option "Use 
entire disk and set up encrypted LVM"
+ Too small boot partition (and too large EFI partition) created with option 
"Use entire disk and set up encrypted LVM"

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https://bugs.launchpad.net/bugs/1530583

Title:
  Too small boot partition (and too large EFI partition) created with
  option "Use entire disk and set up encrypted LVM"

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