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* mkdiskimage: add option -s to make a sparse imagesyslinux-3.85-pre4H. Peter Anvin2010-02-011-6/+10
| | | | | | | It is often fine to have a sparse file for the output image, so add an -s option to generate a sparse image. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* isohybrid: allow selecting the _c and _f versions of the prefixH. Peter Anvin2009-05-211-7/+15
| | | | | | | | Allow selecting the _f or _c versions of the prefix in addition to the default one. This is specified with the -forcehd0 or -ctrlhd0 options. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* isohybrid, mkdiskimage: don't use sysopen(), sysread()H. Peter Anvin2008-09-071-2/+1
| | | | | | | | Don't use sysopen() and sysread() when it doesn't make sense. Especially avoid using sysread() -- sysopen() can be used with read(); the C fdopen() is implicit. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
* Move files out of root into core, dos, and utilsH. Peter Anvin2008-05-291-0/+310
Move source files out of the root directory; the root is a mess and has become virtually unmaintainable. The Syslinux core now lives in core/; the Linux and generic utilities has moved into utils/, and copybs.com has moved into dos/; it had to go somewhere, and it seemed as good a place as any.