Check disc for defects failed with a iso images built using ubuntu-defaults-image

[Jun Kobayashi]

I built a iso image with ubuntu-defaults-image to make Ubuntu Japanese Remix distribution, and it works fine.
But I selected "Check disk for defects" in isolinux menu, that reports "errors found in 3 files!".

Version of Ubuntu: 11.10
Version of ubuntu-defaults-builder: 0.23
Version of live-build: 3.0~a24-1ubuntu17

[Jun Kobayashi (jkbys)]

I found following 3 non checksum lines at the front of md5sum.txt.

--
This file contains the list of md5 checksums of all files on this medium.

You can verify them automatically with the 'integrity-check' boot parameter,
or, manually with: 'md5sum -c md5sum.txt'.
--

These lines may cause the error message.

[Martin Pitt (pitti)]

Unfortunately I can't fix this in ubuntu-defaults-image with a hook:

$ cat config/binary_local-hooks/clean-md5sum
#!/bin/sh -e
sed -in '/^[0-9a-f]\{32\} / p' binary/md5sum.txt

"lb binary_checksums" is called after "lb binary_local-hooks", so at the time when the hook runs we don't have the md5sums file yet.

I see two solutions:

  - remove the code in live-build's scripts/build/lb_binary_checksums which prepends that header
  - Fix the md5sum check component of gfxboot to ignore the header

[Colin Watson (cjwatson)]

We should fix this in casper, which implements the check.

[Launchpad Janitor (janitor)]

This bug was fixed in the package casper - 1.288

---------------
casper (1.288) precise; urgency=low

  * Ignore lines in md5sum.txt that aren't md5sum output (LP: #873401).
 -- Colin Watson <email address hidden> Mon, 24 Oct 2011 17:05:55 +0100

[Martin Pitt (pitti)]

Hello Jun, or anyone else affected,

Accepted casper into oneiric-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

[Launchpad Janitor (janitor)]

This bug was fixed in the package casper - 1.287.1

---------------
casper (1.287.1) oneiric-proposed; urgency=low

  * Ignore lines in md5sum.txt that aren't md5sum output (LP: #873401).
  * Canonicalise debian-installer/locale= / locale= into a UTF-8 locale when
    processing preseeding, in line with how we set up the locale in the live
    environment (LP: #882308).
 -- Colin Watson <email address hidden> Tue, 08 Nov 2011 15:48:36 +0000