Bug#853218: Error message for disk is too small" should be more informative

[Steve McIntyre]

Package: partman-auto
Version: 137
Severity: normal

(Just debugged a problem with KiBi and weasel, installing an arm64
VM.)

If there is a problem with disk size that means auto-partitioning is
going to fail, be more informative: say what needs to be bigger. In
our particular case, the system has *lots* of RAM available, bigger
than the small-ish root disk that we're looking to partition. This led
to confusion - a clear error from choose_recipe() would help, at the
very least in the partman logfile.

Maybe we should be listing what recipes we're looking at while we're
checking them here? It's not like the partman logfile is exactly
quiet anyway!

Maybe also build a list of reasons why each of the auto-install
recipes doesn't work, that we can tell the user in the error message
dialog?

-- System Information:
Debian Release: 8.7
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 4.8.0-0.bpo.2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

[Debian Bug Tracking System]

Your message dated Fri, 22 Nov 2024 14:41:42 +0100
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and subject line Re: #853218 Error message for disk is too small" should be more informative
has caused the Debian Bug report #853218,
regarding Error message for disk is too small" should be more informative
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