Re: lb build failing

[Kent Tenney <ktenney@gmail.com>]

OK, from Utopic I get an iso which gives a splash screen via:

# lb config -d utopic --mode=ubuntu
# lb build
# kvm -cdrom live-image-amd64.hybrid.iso

the boot fails with
Starting init: /bin/sh exists but couldn't execute it
...
Kernel panic - no working init found

Suggestions?

On Sat, Feb 21, 2015 at 7:27 AM, Kent Tenney <ktenney@gmail.com> wrote:
>> b) upgrade from using trusty to utopic.
>
> Easy solution, I'm not particular about version.
> I'll let you know.
>
> Thanks,
> Kent
>
> On Fri, Feb 20, 2015 at 7:40 PM, jnqnfe <jnqnfe@gmail.com> wrote:
>> On Fri, 2015-02-20 at 15:28 -0600, Kent Tenney wrote:
>>> My goal is to generate boot cd's with my code available, the distro
>>> isn't a big deal, however I'm used to Ubuntu.
>>
>> Okay, well, considering the issues you're having here, and considering
>> that Ubuntu support in live-build is best effort only, and may likely
>> break shortly with some particular changes to be added to live-build
>> which are incompatible with Ubuntu (until they get their act together on
>> archive layout), it might be best for you to switch to Debian for this.
>>
>>> Right, the germane package seems to be syslinux
>>> 'aptitude search isolinux' returns
>>> ...
>>> syslinux-common: /usr/lib/syslinux/isolinux.bin
>>> ...
>>>
>>> and with syslinux installed, 'locate isolinux' returns
>>> ...
>>> /usr/share/live/build/bootloaders/isolinux
>>> /usr/share/live/build/bootloaders/isolinux/install.cfg
>>> /usr/share/live/build/bootloaders/isolinux/isolinux.bin
>>> /usr/share/live/build/bootloaders/isolinux/isolinux.cfg
>>> /usr/share/live/build/bootloaders/isolinux/live.cfg.in
>>> /usr/share/live/build/bootloaders/isolinux/menu.cfg
>>> /usr/share/live/build/bootloaders/isolinux/splash.svg.in
>>> /usr/share/live/build/bootloaders/isolinux/stdmenu.cfg
>>> /usr/share/live/build/bootloaders/isolinux/vesamenu.c32
>>> ...
>>>
>>> I've tried to follow the binary_syslinux script without success.
>>>
>>> Would the output of
>>> # strace -etrace=file lb binary_syslinux
>>>
>>> be of interest?
>>
>> No, that won't be useful here, thanks anyway. I see the problem though.
>>
>> Firstly, when I previously searched the Ubuntu archive, I overlooked the
>> fact that the search box by default had 'trusty' selected, I think I
>> must have assumed it had 'any' selected, which then led me to believe
>> that Ubuntu had no isolinux package whatsoever. In fact checking again,
>> there is actually an isolinux package in the Ubuntu archives, but only
>> for utopic and vivid.
>>
>> The reason for it being missing for trusty is that the files contained
>> in the isolinux package were split out into their own isolinux package
>> in (Debian) syslinux v3:6.00~pre4+dfsg-5, as you can see in the
>> changelog ([1]):
>>
>> "Splitting out isolinux into own package for syslinux-installer and
>> debian-live usage."
>>
>> So the syslinux package collection available in the Ubuntu archives for
>> trusty must pre-date this.
>>
>> live-build v4.0.5 expects this isolinux package to exist, and is
>> incompatible with the old package setup (it makes no attempt to apply a
>> special case for Ubuntu trusty, leaving support for that broken).
>>
>> So now we know the cause, the solution is either to a) apply a hack to
>> live build to get the old package instead of the newer 'isolinux'
>> package, or b) upgrade from using trusty to utopic. That is if you don't
>> want to switch to Debian.
>>
>> [1]
>> http://metadata.ftp-master.debian.org/changelogs//main/s/syslinux/syslinux_6.03+dfsg-5_changelog
>>