Bug#801712: hdd-size=auto not working with EXT3/EXT4

[Kristian Klausen <klausenbusk@hotmail.com>]

Subject: hdd-size=auto not working with EXT3/EXT4
Package: live-build
Version: 5.0~a8-1
Severity: normal
Tags: upstream, patch

Dear Maintainer,

At the moment I manually set hdd-size to around 50 megabyte more than my live image require.
As the Calculate_partition_size does not take into account, that ext3/ext4 has a journal.

I have attached a patch, it not "perfect" or tested, but should give you a idea about how to fix it.

Some useful links:
http://lists.openwall.net/linux-ext4/2010/01/11/3 (how the journal size is calculated)
http://linux.die.net/man/8/mkfs.ext4 (usage type, default block size)
ftp://hgdownload.cse.ucsc.edu/cbsebackups.old/encode-01/etc/mke2fs.conf (mke2fs.conf)

Regards Kristian Klausen

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