Date: Wed, 6 Aug 1997 16:06:09 -0700 (PDT) From: Tom Bartol <bartol@salk.edu> To: George Michaelson <ggm@connect.com.au> Cc: Michael Smith <msmith@atrad.adelaide.edu.au>, Randall Hopper <rhh@ct.picker.com>, current@FreeBSD.ORG, emulation@FreeBSD.ORG Subject: Re: modifying boot mgrs FROM FREEBSD Message-ID: <Pine.BSF.3.95.970806153805.1888E-100000@pauling.salk.edu> In-Reply-To: <27541.870906097@connect.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
Would it be too weird to do the following quick and dirty thing completely without the need for any documentation on which boot manager you're using: 1) setup your boot manager from dos or wherever necessary to do the initial install. 2) boot into freebsd or linux and use dd to read the boot blocks off the disk and into a file. 3) boot back into whatever environment can be used to "tune" your boot manager and do whatever "tuning" strikes your fancy. 4) boot back into freebsd or linux and use dd to read the modified boot blocks into a second file. 5) use diff or cmp to find out what effect your "tuning" had on the boot blocks and try to deduce the logic (i.e. reverse engineer) the mods. Hopefully this will not be very complicated. 6) you might then be able to use patch on your snap-shot copy of the boot blocks to "tune" it from within freebsd of linux. If you're really confident of your work you can then use dd to write your "tuned" boot blocks back to where they belong. Just a thought... Tom On Thu, 7 Aug 1997, George Michaelson wrote: > Four things: > > 1) at next boot, which of the menu of boot choices is to be the > default ie under reboot, do you boot back into THIS unix or into > W95, DOS, NetBSD, Linux etc > > 2) change the flag marking if the MBR is to be updated to reflect > the current boot choice as the live preference. This is different > to the above which states WHICH secondary boot is to be used, this > marks if any alternate boot is actually taken because of keyboard > selection, that the selection becomes the active default boot > > 3) change the textual stringprompts against each option > > 4) change which bootable partitions appear in the menu of choices > > -George >
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.3.95.970806153805.1888E-100000>