create_primary_partitions sometimes attempts to create last partition larger than free space

Bug #287571 reported by Mathias Gug on 2008-10-22
This bug affects 5 people
Affects Status Importance Assigned to Milestone
partman-auto (Debian)
Fix Released
partman-auto (Ubuntu)
Colin Watson

Bug Description

Binary package hint: partman-auto

Preseeding an expert_recipe fails on amd64 with the message "Can't have a partition outside the disk!".

The vm guest has two block devices of 2Gb each.

The partition part of the preseed file is the following:

# The method should be set to "raid".
d-i partman-auto/method string raid
# Specify the disks to be partitioned. They will all get the same layout,
# so this will only work if the disks are the same size.
d-i partman-auto/disk string /dev/sda /dev/sdb

# Next you need to specify the physical partitions that will be used.
d-i partman-auto/expert_recipe string multiraid :: 400 500 100000000
0 raid $primary{ } method{ raid } . 64 256 200% raid $primary{ } method{ r
aid } .

# Last you need to specify how the previously defined partitions will be
# used in the RAID setup. Remember to use the correct partition numbers
# for logical partitions.
# Parameters are:
# <raidtype> <devcount> <sparecount> <fstype> <mountpoint> # <devices> <sparedevices>
# RAID levels 0, 1 and 5 are supported; devices are separated using "#"
d-i partman-auto-raid/recipe string 1 2 0 ext3 / /dev/sda1#/dev/sdb1 . 1 2 0 swap - /dev/sda2#/dev/sdb2 .

# This makes partman automatically partition without confirmation.
d-i partman-md/confirm boolean true
d-i partman/confirm_write_new_label boolean true
d-i partman/choose_partition select finish
d-i partman/confirm boolean true

mdadm mdadm/boot_degraded boolean true

The exact same pressed used with the i386 installer works.

Mathias Gug (mathiaz) wrote :

I've attached the log of partman.

Mathias Gug (mathiaz) wrote :

And here is the syslog of the installation until the installer stopped.

Colin Watson (cjwatson) on 2008-12-22
Changed in partman-auto:
status: New → Confirmed
Colin Watson (cjwatson) wrote :

Workaround: remove $primary{ } from those two partitions. That'll switch you onto a different code path which doesn't have the same bug.

summary: - expert_recipe fails with "Can't have partition outside the disk" message
- on amd64 while working on i386
+ create_primary_partitions sometimes attempts to create last partition
+ larger than free space
Colin Watson (cjwatson) wrote :

We'll need to fix this, as it will bite the default partitioning recipes once we switch to using swap files.

Changed in partman-auto (Ubuntu):
assignee: nobody → Colin Watson (cjwatson)
importance: Undecided → High
status: Confirmed → In Progress
Changed in partman-auto (Debian):
status: Unknown → New
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package partman-auto - 87ubuntu1

partman-auto (87ubuntu1) karmic; urgency=low

  * Resynchronise with Debian. Remaining changes:
    - Adjust default partition sizes for Ubuntu.
    - Accept autopartitioning automatically rather than showing
    - Drop priority of partman-auto/choose_recipe question to medium.
    - Offer resize_use_free autopartitioning method.
    - Add support for partman-auto/method=loop via partman-auto-loop.
    - Drop the bootable flag from i386/amd64 recipes; it can break existing
      Windows installations when autopartitioning only free space rather
      than a whole disk.
    - Remove explicit $primary{ } specifiers from standard recipes. We only
      need them to be primary if no other primary partitions exist already.
    - Make biggest_free respect the selection made in partman-auto/disk.
    - Exclude devices containing the installation medium from automatic

partman-auto (87) unstable; urgency=low

  * Add support for writing sizes as a number plus a percentage of RAM, e.g.
    "2000+50%". This is useful when doing automatic partitioning with the
    expectation of creating swap files.
  * If we're creating primary partitions and find that we've reached the end
    of the recipe, use "full" rather than "beginning" as the place passed to
    NEW_PARTITION, thereby avoiding rounding problems and matching the
    process for creating logical partitions (closes: #516347, LP: #287571).

  [ Updated translations ]
  * Hindi (hi.po)

 -- Colin Watson <email address hidden> Tue, 14 Jul 2009 23:08:15 +0100

Changed in partman-auto (Ubuntu):
status: In Progress → Fix Released
tags: added: iso-testing
Changed in partman-auto (Debian):
status: New → Fix Released
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