Date: Tue, 16 Jun 2020 12:27:28 +0200 From: Polytropon <freebsd@edvax.de> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: FreeBSD 12.1 i386 CD #1 image size not compatible with intended medium standard size Message-ID: <20200616122728.7bd2df41.freebsd@edvax.de>
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Due to a system where I can only boot from CD, I downloaded the FreeBSD 12.1 CD image (disc1.iso). It was not possible to record this in a standard way to a 700 MB (not 650 MB) blank CD medium (here: Platinum 700 MB / 80 min). I tried the "overburn" workaround (as suggested by cdrecord, with the precaution that this is non-standard) as follows (for testing, all parameters supplied manually): $ cdrecord dev=0,0,0 speed=8 -v -eject -sao -overburn -data <file> But of course that was problematic, too. Capacity Blklen/Sparesz. Format-type Type 0 2048 0x00 No Media Present or Unknown Capacity Blocks total: 359846 Blocks current: 359846 Blocks remaining: -13044 cdrecord: WARNING: Data may not fit on current disk. cdrecord: Notice: Overburning active. Trying to write more than the official disk capacity. Result: It recorded! Track 01: 728 of 728 MB written (fifo 100%) [buf 99%] 8.0x. Track 01: Total bytes read/written: 763678720/763678720 (372890 sectors). Writing time: 646.563s Average write speed 7.7x. Min drive buffer fill was 94% Fixating... Fixating time: 7.867s cdrecord: fifo had 11653 puts and 11653 gets. cdrecord: fifo was 0 times empty and 11546 times full, min fill was 85%. Trying to boot that CD in the desired system - it starts from CD! But then an error occurs: FreeBSD bootstrap loader, Revision 1.1 Startup error in /boot/lua/loader.lua: LUA ERROR: cannot open /boot/lua/loader.lua: No such file or directory. Can't load 'kernel' OK _ No, that's not okay. :-( Oh, and: If I enter "help", as offered, I am being informed that help is not available... I booted the FreeBSD installation from the hard disk and mounted the CD: READ_BIG ERROR, and a "ls -R /cdrom" led to two further ILLEGAL REQUEST and MEDIUM ERROR messages. Maybe I should try a different optical unit, but the one in use here also booted (and installed from) a FreeBSD 4.5 CD I created many years (probably decades) ago, so I would assume that the disc drive is okay. The file mentioned above (here: /cdrom/boot/lua/loader.lua) was present on the CD and readable. File source: ftp://ftp.freebsd.org/pub/FreeBSD/releases/ISO-IMAGES/12.1/ Result file: FreeBSD-12.1-RELEASE-i386-disc1.iso 763678720 bytes (728.4 MB says the browser) It would be nice to remove a few of the additional packages from the CD so it will fit on standard 650 MB (and therefore 700 MB) media _without_ requiring the workaround of "over- burn". My question is: When will FreeBSD supply a CD image file that can actually be used with normal CD media again without requiring a workaround and possibly breaking the result? -- Polytropon Magdeburg, Germany Happy FreeBSD user since 4.0 Andra moi ennepe, Mousa, ...
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