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Bug#645100: debian-installer: partman catch 22 no way out



Package: debian-installer
Version: debian-6.0.3-i386-netinst
Severity: important

Dear Maintainer,

While re-installing Debian on a netbook and a drive with an already existing
LVM, a situation occurred where there was no way to complete partitioning (or
at least, non-obvious).

The existing drive was already partitioned with 4 primary partitions: 3 for
NTFS and one Extended for Linux.  All available space on the drive was
allocated.

In the Extended partition, there were 2 logical partitions: 1 for /boot (250
MB) and 1 for LVM (57 GB).

Within LVM there was 1 Partition Group : HD

Within the HD Partition Group there were 3 sub-partitions : root (2.5 GB), home
(10 GB) and swap (2 GB).

The system was booted from the installation media (USB flash drive,
debian-6.0.3-i386-netinst.iso) and the standard Debian graphic installer was
run.

At partman, the object was to delete the /boot and LVM extended partitions and
re-partition without an LVM.  In attempting to do this, it became impossible to
delete the LVM and complete the partitioning.

The steps were taken in this order:

1) delete the existing /boot partition.
2) Configure the Logical Volume Manager.
3) delete the existing HD partition group.
4) attempt to delete the existing LVM (failed).

No changes were allowed to the LVM partition because it was in use by volume
group HD.  It was not possible to delete the volume group HD because it was
already deleted.

It was not possible to exit partman because no root filesystem had been
defined.

It was not possible to define a root filesystem partition without freeing up
the space occupied by the LVM.

Cheers,
Chris.



-- System Information:
Debian Release: wheezy/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (1, 'experimental')
Architecture: amd64 (x86_64)

Kernel: Linux 3.0.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Attachment: partman-base_partlocked_0.png
Description: PNG image

Attachment: partman_choose_partition_0.png
Description: PNG image

Attachment: partman-lvm_confirm_nochanges_0.png
Description: PNG image

Attachment: partman-lvm_displayall_0.png
Description: PNG image

Attachment: partman-lvm_mainmenu_0.png
Description: PNG image

Attachment: partman-target_no_root_0.png
Description: PNG image


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