That version is now dead
http://news.softpedia.com/news/ubuntu-17-04-zesty-zapus-has-reached-end-of-life-upgrade-to-ubuntu-17-10-now-519360.shtml
** Changed in: systemd (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1687212
Title:
~16 GB written to disk from power on till lightdb login screen?
Status in systemd package in Ubuntu:
Invalid
Bug description:
After each system boot, iostat -m shows that the kernel has written
around 16 GB to SSD disk:
avg-cpu: %user %nice %system %iowait %steal %idle
9.10 0.00 10.06 2.38 0.00 78.47
Device: tps MB_read/s MB_wrtn/s MB_read MB_wrtn
sda 702.32 16.91 1495.65 182 16108
dm-0 808.36 15.64 1495.65 168 16108
dm-1 786.82 15.39 0.01 165 0
dm-2 10.21 0.21 1495.64 2 16107
It's a fresh Ubuntu 17.04 installation with rootfs installed on
encrypted LVM (selected during the installation).
/proc/diskstats (https://www.kernel.org/doc/Documentation/ABI/testing
/procfs-diskstats) seem to be matching the output of "iostat -m".
Please note that dm-2 is 16 GB swap (the system has 16 GB RAM):
$ ls /dev/mapper/ -l
total 0
crw------- 1 root root 10, 236 Apr 30 01:53 control
lrwxrwxrwx 1 root root 7 Apr 30 01:53 sda3_crypt -> ../dm-0
lrwxrwxrwx 1 root root 7 Apr 30 01:53 ubuntu--vg-root -> ../dm-1
lrwxrwxrwx 1 root root 7 Apr 30 01:53 ubuntu--vg-swap_1 -> ../dm-2
$ cat /proc/swaps
Filename Type Size Used
Priority
/dev/dm-2 partition 16494588 0
-1
So what seems to happen, is that the OS overwrites the whole encrypted
swap partition during bootup.
This is very worrying, given that it's SSD disk!
ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: systemd 232-21ubuntu3
Uname: Linux 4.11.0-041100rc7-generic x86_64
ApportVersion: 2.20.4-0ubuntu4
Architecture: amd64
Date: Sun Apr 30 01:57:04 2017
ExecutablePath: /lib/systemd/systemd
InstallationDate: Installed on 2017-04-14 (15 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 003: ID 1bcf:2b95 Sunplus Innovation Technology Inc.
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. Precision 5520
ProcEnviron:
TERM=linux
PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.11.0-041100rc7-generic
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/29/2017
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.2.4
dmi.board.name: 0GPNW9
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.2.4:bd03/29/2017:svnDellInc.:pnPrecision5520:pvr:rvnDellInc.:rn0GPNW9:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.name: Precision 5520
dmi.sys.vendor: Dell Inc.
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