[syslinux] Failure to boot isohybrid image from USB stick
Thomas Schmitt
scdbackup at gmx.net
Mon Nov 3 00:54:06 PST 2008
Hi,
Dag Wieers wrote:
> I have started to implement an initramfs creation tool that based on a
> fileset will start to collect all files (and dependencies) from the host
> ...
> http://svn.rpmforge.net/svn/trunk/tools/centos-rescue/
> Unfortunately, whereas the uncompressed size of RIPLinux is 90M, ours is
> already 105M (and not including everything RIPLinux has).
Sorry for sliding off topic now {:)
Probably the centos-rescue project will
need an own place for discussion.
But for once:
I had a look into fset/centos5.fset for the CD/DVD/BD
software.
I see three possible levels of fatness for the burner
department:
1) The core tasks of burning are covered by xorriso
and its defined alias links. 660 kB stripped
(on a 64 bit SuSE).
It knows what is expected when getting started as
"mkisofs" or "cdrecord".
There is some data rescue functionality and the
capability to extract files from not mounted ISO
images.
2) The following tools provide extra functionality:
growisofs, dvd+rw-booktype, dvd+rw-format,
dvd+rw-mediainfo, dvd-ram-control
for rather exotic media (e.g. DVD-R DL, BD-R) and for
programs which rely on using the growisofs CLI.
The dvd+rw* commands are valuable in case of trouble
with DVD media.
cdrecord (the original by Joerg Schilling)
for exotic CD layouts (e.g. CD-XA).
mkisofs (original)
for creating UDF images, exotic ISO 9660 tasks,
HFS, ...
readcd
for reading non-data sectors from CD.
flyisofs
can produce ISO images in a single pass, but one has
no control over their directory structure.
cdck
evaluates the read quality of media.
cdmrw
formats CD-RW to become overwriteable (i wonder
whether the block device driver supports them).
Probably needed to use the kernel's UDF capabilities
on CD-RW media.
cdwtool
i have to assume it does something useful.
isoextract
has few documentation available.
The name sounds interesting.
3) The other candidates have not many capabilities which
are not icovered by 1) or 2). So
cdrskin,
dvdrecord,
wodim (not in list),
genisoimage (not in list),
isoinfo,
isosize,
would be more or less redundant.
I guess about one megabyte can be saved here.
cdrskin with wodim as fallback are an interesting team.
But for a lean system that's much to playful.
I never found out what senseful things one could do
with cdrdao (not in list anyway).
There are several *2iso programs which remove the
proprietiary aspects from various ISO 9660 derivates.
One of their home pages points to program "iat"
which seems to bundle much of their functionality.
Probaby i have overlooked some burn-related tools in
the list. Give me a note if there is anything else
to evaluate.
Have a nice day :)
Thomas
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