Phillip - Thanks for this explanation. While I'm willing to look into the first two, please first note that (3) clearly does not hold. If you look in the syslog I linked (above), you will see repeatedly:
Jan 8 18:27:08 Tyan-S2927 kernel: [ 2.804642] sdc: p2 size 1157233300 extends beyond EOD, truncated Jan 8 18:27:08 Tyan-S2927 kernel: [ 2.804747] sdc: p3 size 3023914186 extends beyond EOD, truncated Jan 8 18:27:08 Tyan-S2927 kernel: [ 2.804814] sdc: p4 size 3400475220 extends beyond EOD, truncated Whatever it's seeing are not within the bounds of the disk. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to util-linux in Ubuntu. https://bugs.launchpad.net/bugs/1531404 Title: nonexistent partition in /dev, & lsblk/disk util misbehaving with randomized disks Status in util-linux package in Ubuntu: Incomplete Bug description: I have two 2T disks with no partition table and which have been filled with random data. GNU parted shows nothing on this disk: GNU Parted 3.2 Using /dev/sda Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) print Error: /dev/sda: unrecognised disk label Model: ATA WDC WD2002FAEX-0 (scsi) Disk /dev/sda: 2000GB Sector size (logical/physical): 512B/512B Partition Table: unknown Disk Flags: but when I check with `lsblk`, I see one disk with partitions and the other without: Code: NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sda 8:0 0 1.8T 0 disk └─sda2 8:2 0 1.6T 0 part NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT sdb 8:16 0 1.8T 0 disk and the Disks utility agrees (see: http://ibin.co/2SQv4KbH06Mz). Also, /dev/disk/by-id contains an entry pointing to sda and one pointing to sda2. So it really does think there's a second partition there. Thinking there was something wrong, I re-filled the disks with random data. Now sda is properly (in the Disks utility as just an "unknown disk"), but sdb shows a second partition, and identically to how sda was showing it before (ie the Disks utility output is the same with 181GB at the beginning and 128GB at the end). I am running all this from the Ubuntu Gnome 15.10 installer disk. --- ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 CurrentDesktop: GNOME DistroRelease: Ubuntu 15.10 InstallationDate: Installed on 2015-08-31 (130 days ago) InstallationMedia: Ubuntu-GNOME 15.10 "Wily Werewolf" - Release amd64 (20151021) Package: util-linux 2.26.2-6ubuntu3 PackageArchitecture: amd64 ProcEnviron: TERM=xterm-256color PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6 Tags: wily Uname: Linux 4.2.0-23-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/util-linux/+bug/1531404/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp