Date: Mon, 25 Sep 2000 17:45:37 -0300 From: Gustavo Pamplona <pamplona@uai.com.br> To: freebsd-questions@freebsd.org Subject: Something like booting from disk images. Message-ID: <3.0.6.32.20000925174537.00797bc0@uai.com.br>
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Hi. What I want is a program that get a disk image already written in disk, (I dont'know) write it to a ram disk and boot from the ramdisk. For example: I get the boot.flp from freebsd floppy disk image, or a DOS boot disk already written, for example, "dosboot.img". The dosboot.img have a total file size of 1474560 bytes, in other words a reliable disk image of the first MS-DOS disk. (Of a three setup disks, MS-DOS 6.22) Again, something like it. # dd if=/dev/fd0c of=/dosboot.img bs=512 count=2880 And, I don't know, the program get the file dosboot.img, write to the RAM, and again, I don't know, handle the INT 19 (DOS based interruption), clean all the MS-DOS registers, and proceed to load the disk as it have been inserted in the floppy drive. in other words, the normal way of booting a MS-DOS Setup Disk. As I said in my previous e-mail, I don't have no floppy drives, cause I have a Colorado Jumbo 250 MB Floppy Tape Drive and I usually use CD-ROM to boot my system. []'s and Thanx. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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