[syslinux] keytab-lilo: update to support kbd 2.0.3 format

[Ady]

> On 27.12.2015 23:57, Jernej Simončič via Syslinux wrote:
> > On Sunday, December 27, 2015, 23:34:11, Ady via Syslinux wrote:
> > 
> >> How this change would affect users with older versions of kbd / 
> >> loadkeys / or in older OSes? I mean, let's assume a user using a newer
> >> version of Syslinux (containing this proposed change in its keytab-lilo
> >> perl script) but with an older OS / older version of kbd / loadkeys / 
> >> map files.
> > 
> > The changed regular expression will work for both formats from what I
> > can see.
> > 
> 
> keytab-lilo - out of service
> http://bugzilla.syslinux.org/show_bug.cgi?id=68
> 
 
 
keytab-lilo is just a Perl script invoking the "loadkeys" program.

Generic example (as root): 
# keytab-lilo.pl /path/to/us.kmap.gz /path/to/dvorak.kmap.gz > 
/path/to/dvorak.ktl

or:
# keytab-lilo.pl /path/to/us.map.gz /path/to/dvorak.map.gz > 
/path/to/dvorak.ktl

or:
# keytab-lilo.pl /path/to/us.map /path/to/dvorak.map > 
/path/to/dvorak.ktl

Then copy the resulting "dvorak.ktl" file to "/boot/syslinux/" (or to 
the relevant location for Syslinux).

In _some cases_ you might also want to (as root):

# chown root:root /boot/syslinux/dvorak.ktl

where:
_ *.{k,}map[.gz] are _*existing*_ [gzipped] keyboard map files;
_ us.{k,}map[.gz] represents the default keyboard map used by the BIOS 
(not necessarily by your OS);
_ the file names and paths of each one of the files should better be 
explicitly and completely typed in so to avoid paths and names 
assumptions (different OSes might use different names/locations for the 
relevant keyboard map files).

In other words, when something throws an unexpected result, the user 
should use the complete name/path/command instead of using the assumed 
defaults (hint: the us map file is required in the command too, and the 
name/locations of the keyboard map files might not be the ones being 
assumed by the script).

The script is expected to be "generic", and the assumed defaults might 
not be adequate for some OSes. Using the complete command should be 
expected to work adequately for most distros. Patching the script in 
such a way that it would work for some particular distro should only be 
done if the script maintains backwards compatibility (i.e. not breaking 
its compatibility with other/older OSes).

FWIW, _I_ am not planning on testing this.

Feedback is still welcome.

Regards,
Ady.
 
> 
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