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Bug#477333: when a pre-existing DOS label is used on a > 2 TiB disk, partman gets confused



Package: installation-report
Version: today's daily build
Severity: normal

When a pre-existing DOS label is used on a > 2 TiB disk, partman still thinks
it can use the remaining free portion of the disk without replacing the
partition label.

For example, if your disk is 4 TiB in size, but an existing DOS label is
(sub-optimally) occupiing the first 2 TiB [1] partman will propose the
following disk layout (see attachment), which is impossible given the size
limit in DOS labels.

I think the best solution would be to create an hybrid label, but AFAIK
Parted doesn't support this yet.

Or at the least, partman could tell the user what's going on, and offer the
possibility of replacing the whole DOS label with a GPT one.

[1] given that consumer versions of Windows don't support GPT, and the
    enterprise ones support it poorly, I think we'll probably see a lot
    of this.

-- System Information:
Debian Release: 4.0
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)
Shell:  /bin/sh linked to /bin/bash
Kernel: Linux 2.6.18-6-amd64
Locale: LANG=ca_AD.UTF-8, LC_CTYPE=ca_AD.UTF-8 (charmap=UTF-8)

Attachment: screenshot.png
Description: PNG image


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