KNOPPIX 3.5 "maxi edition" at LinuxTag

Posted Jun 16, 2004 13:52 UTC (Wed) by jreiser (subscriber, #11027) [Link]

To re-generate the CD-ROM of KNOPPIX 3.3 using the supplied createcompressedfs, you need a swap space as big as the CD: about 2.0 GB. That requirement exists only because of the desire for the output to be compatible with a pipe. If you allow lseek on the output, and allow an over-estimate of the number of 64KB blocks of output, then the array which holds the starting byte offset for each block can written once at the beginning with placeholders, and re-written at the end with actual values. This reduces the address space of a modified createcompressedfs to just a few megabytes.