On trusty; this complains but works.
ubuntu@ubuntu:~$ dpkg --list | grep util-linux
ii util-linux 2.20.1-5.1ubuntu20.9
amd64Miscellaneous system utilities
ubuntu@ubuntu:~$ cat /proc/partitions
major minor #blocks name
2530 10485760 vda
2531 10484736 vda1
253 16 10485760 vdb
253 32366 vdc
1101048575 sr0
ubuntu@ubuntu:~$ sudo bash
sudo: unable to resolve host ubuntu
root@ubuntu:~# echo "0," | sfdisk --Linux --unit=S --force /dev/vdb
Checking that no-one is using this disk right now ...
OK
Disk /dev/vdb: 20805 cylinders, 16 heads, 63 sectors/track
sfdisk: ERROR: sector 0 does not have an msdos signature
/dev/vdb: unrecognized partition table type
Old situation:
No partitions found
Warning: bad partition start (earliest 1)
New situation:
Units = sectors of 512 bytes, counting from 0
Device BootStart End #sectors Id System
/dev/vdb1 1 20971519 20971519 83 Linux
/dev/vdb2 0 - 0 0 Empty
/dev/vdb3 0 - 0 0 Empty
/dev/vdb4 0 - 0 0 Empty
Warning: no primary partition is marked bootable (active)
This does not matter for LILO, but the DOS MBR will not boot this disk.
Successfully wrote the new partition table
Re-reading the partition table ...
If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
to zero the first 512 bytes: dd if=/dev/zero of=/dev/foo7 bs=512 count=1
(See fdisk(8).)
root@ubuntu:~# cat /proc/partitions
major minor #blocks name
2530 10485760 vda
2531 10484736 vda1
253 16 10485760 vdb
253 17 10485759 vdb1
253 32366 vdc
1101048575 sr0
** Also affects: util-linux (Ubuntu)
Importance: Undecided
Status: New
** Also affects: util-linux (Ubuntu Eoan)
Importance: Undecided
Status: New
** Also affects: util-linux (Ubuntu Xenial)
Importance: Undecided
Status: New
** Also affects: util-linux (Ubuntu Focal)
Importance: Undecided
Status: New
** Also affects: util-linux (Ubuntu Bionic)
Importance: Undecided
Status: New
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You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to cloud-init.
https://bugs.launchpad.net/bugs/1851438
Title:
cloud-init disk_setup fails to partition disk for Ubuntu18
Status in cloud-init:
Triaged
Status in util-linux package in Ubuntu:
New
Status in util-linux source package in Xenial:
New
Status in util-linux source package in Bionic:
New
Status in util-linux source package in Eoan:
New
Status in util-linux source package in Focal:
New
Bug description:
Pasting disk_setup for cloud-config:
disk_setup:
/dev/xvde:
layout: True
overwrite: False
type: mbr
fs_setup:
-device: /dev/xvde
filesystem: ext4
label: data
overwrite: false
partition: auto
I want to attach and mount a /data disk on the VM using cloud-init so
I just want to single partition 100% of the disk.
Error while running the sfdisk command for partitioning the disk (please see
attached file).
OS: Ubuntu18
How I repro-ed it outside cloud-init environment:
1. Open XenCenter, add a new disk, say /dev/xvdc
2. Run `/sbin/sfdisk --Linux --unit=S --force /dev/xvdc` and specify start
sector as 0. Because from the cloud-init logs and source code, I figured that
it was picking start sector as 0. Save it and see the error.
To manage notifications about this bug go to:
https://bugs.launchpad.net/cloud-init/+bug/1851438/+subscriptions
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