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[Richard Pratt <2056647@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

When attemoting an install of Lubuntu 22.04 Daily build 07.03.24 using
manual partitioning with partitions across two devices, the install
failed with an error (see screenshot) indicating failure to unmount /var
partition.

Error Installation failed
Could not unmount target system
The device '/dev/sda3' is mounted in the target system.
It is mounted at '/tmp/calamares-root-7ckays/var'.
The device could not be unmounted.


Calamarares install session log indicates a timeout waiting for umount to complete (>10000ms) for /var.

When inspecting the mount state sometime after failure, the partition
appeared to be unmounted, suggesting the timeout was not long enough.

Note there may be a relevant info here
https://github.com/calamares/calamares/issues/2006

Calamares log session found at
/home/lubuntu.cache/calamares/session.log

Manual partition scheme
Devices mmc (built in eMMC SSD) + sda (USB 3.0 128gb stick formatted ext4)
/dev/mmcblk0p0     /boot/efi  fat32
/dev/mmcblk0p1     /          ext4
/dev/sda1          /home      ext4
/dev/sda2          /usr       ext4
/dev/sda3          /var       ext4

** Affects: calamares (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: calamares install lubuntu noble timeout umount

** Attachment added: "session.log"
   https://bugs.launchpad.net/bugs/2056647/+attachment/5754365/+files/session.log

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https://bugs.launchpad.net/bugs/2056647

Title:
  Calamares Install fail - Lubuntu Noble 24.04 - Could not unmount
  target system

Status in calamares package in Ubuntu:
  New

Bug description:
  When attemoting an install of Lubuntu 22.04 Daily build 07.03.24 using
  manual partitioning with partitions across two devices, the install
  failed with an error (see screenshot) indicating failure to unmount
  /var partition.

  Error Installation failed
  Could not unmount target system
  The device '/dev/sda3' is mounted in the target system.
  It is mounted at '/tmp/calamares-root-7ckays/var'.
  The device could not be unmounted.

  
  Calamarares install session log indicates a timeout waiting for umount to complete (>10000ms) for /var.

  When inspecting the mount state sometime after failure, the partition
  appeared to be unmounted, suggesting the timeout was not long enough.

  Note there may be a relevant info here
  https://github.com/calamares/calamares/issues/2006

  Calamares log session found at
  /home/lubuntu.cache/calamares/session.log

  Manual partition scheme
  Devices mmc (built in eMMC SSD) + sda (USB 3.0 128gb stick formatted ext4)
  /dev/mmcblk0p0     /boot/efi  fat32
  /dev/mmcblk0p1     /          ext4
  /dev/sda1          /home      ext4
  /dev/sda2          /usr       ext4
  /dev/sda3          /var       ext4

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