Large installation size after upgrade from Kubuntu 12.04 to 12.10

[Renato S. Yamane]

After upgrade (using using kubuntu-devel-release-upgrade), my root directory increase from ~5Gb to 10Gb!

I already use "apt-get autoremove", "aptitude clean", remove all packages listed by "deborphan", my logs are tiny (on /var/log) and the old Kernel (3.2.0) was already removed.

Check image attached from xdiskspace.

As I use a SSD (80Gb), each byte is important for me.

# df -Th
Sist. Arq. Tipo Tam Usad Dispon. Uso% Montado em
/dev/sda1 ext4 15G 9,5G 4,5G 68% /
udev devtmpfs 973M 4,0K 973M 1% /dev
tmpfs tmpfs 394M 860K 394M 1% /run
none tmpfs 5,0M 0 5,0M 0% /run/lock
none tmpfs 985M 1,2M 984M 1% /run/shm
none tmpfs 100M 0 100M 0% /run/user
/dev/sda6 ext4 58G 9,7G 45G 18% /home

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: debian-installer (not installed)
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
Date: Sun Nov 11 14:04:14 2012
InstallationDate: Installed on 2012-03-04 (252 days ago)
InstallationMedia: Kubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120228.1)
MachineType: LENOVO 6457BB5
MarkForUpload: True
MemoryUsage:
 total used free shared buffers cached
 Mem: 2017248 1944828 72420 0 157332 684288
 -/+ buffers/cache: 1103208 914040
 Swap: 1461876 9928 1451948
PccardctlIdent:
 Socket 0:
   no product info available
PccardctlStatus:
 Socket 0:
   no card
ProcEnviron:
 LANGUAGE=pt_BR:pt:en
 PATH=(custom, no user)
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-18-generic root=UUID=d762bd7a-3b24-4c3c-b253-248de990a172 ro quiet splash elevator=noop vt.handoff=7
SourcePackage: debian-installer
UpgradeStatus: Upgraded to quantal on 2012-11-10 (1 days ago)
dmi.bios.date: 02/27/2012
dmi.bios.vendor: LENOVO
dmi.bios.version: 7LETD0WW (2.30 )
dmi.board.name: 6457BB5
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias: dmi:bvnLENOVO:bvr7LETD0WW(2.30):bd02/27/2012:svnLENOVO:pn6457BB5:pvrThinkPadT61:rvnLENOVO:rn6457BB5:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 6457BB5
dmi.product.version: ThinkPad T61
dmi.sys.vendor: LENOVO

[Renato S. Yamane (renatoyamane)]

Hello?

[Renato S. Yamane (renatoyamane)]

All peoples don't care about this bug because on these days all computers are using huge HDD (more than 500Gb).
But... This is a bug.