kevin@msa3b.UUCP (Kevin P. Kleinfelter) (07/01/89)
We've been running nicely on an AT&T 3B2/700. Unfortunately, we bought the machine from AT&T after using it on their evaluation plan. They had already installed UNIX, and seem to be completely unable (unwilling) to provide the original UNIX installation diskettes. Is there any way I can create a "bootable" floppy so that if my hard disks crash, I can restore from a backup after replacing the hard drive and booting from floppy? -- Kevin Kleinfelter @ Management Science America, Inc (404) 239-2347 gatech!nanovx!msa3b!kevin
pag@tcsc3b2.UUCP (Philip A. Gross) (07/05/89)
In article <328@msa3b.UUCP>, kevin@msa3b.UUCP (Kevin P. Kleinfelter) writes: > We've been running nicely on an AT&T 3B2/700. Unfortunately, we bought the > machine from AT&T after using it on their evaluation plan. They had already > installed UNIX, and seem to be completely unable (unwilling) to provide the > original UNIX installation diskettes. > > Is there any way I can create a "bootable" floppy so that if my hard disks > crash, I can restore from a backup after replacing the hard drive and booting > from floppy? > -- > Kevin Kleinfelter @ Management Science America, Inc (404) 239-2347 > gatech!nanovx!msa3b!kevin First, I think that you definitely need to persue the issue with AT&T over obtaining the UNIX(tm) for your 3B2/700. The os is distributed on a SCSI tape for the 3B2/700. You can boot your 3B2/700 using this tape and go into the perverbial "magic mode" in order to do any emergency maintenance. Now, if you wish to make a bootable floppy, what you will need to do is first take a look at /dev/rdsk/c0d0s? and compare these with your root drive on the 700. You can use the /etc/prtvtoc command in order to get the volume table of contents for your root drive. Now the boot cylinder is c0d0s7 and using the newboot(1M) or dd(1M) commands you can write the Olboot/lboot and mboot files onto the boot cylinder. I cannot recall which one of the Olboot/lboot files should be written to the disk, I believe one is for the hard disk and the other is for use on a floppy disk. BTW, these files are found in /lib. You will also need to put a copy of the UNIX(tm) kernel in the root c0d0s0 partition of the diskette. You can probably temporarily re-tune your current kernel on the 700 to make it smaller so it will fit on the diskette. Next you will need to copy any other required tables and programs on the 700 to the root partition on the diskette. Don't forget such things like init, inittab, and a few required devices. Good luck. =============================================================================== Philip A. Gross The Computer Solution Co., Inc. Voice: 804-794-3491 ------------------------------------------------------------------------------- INTERNET: pag@tcsc3b2.tcsc.com USENET: tcsc3b2!pag UUCP: tcsc3b2!pag (804)794-1514 ATTMAIL: attmail!tcsc3b2!pag ------------------------------------------------------------------------------- The opinions expressed here are strictly mine and nobody elses. << I haven't heard what I have to say about that yet. >> :-)
woods@eci386.uucp (Greg A. Woods) (07/05/89)
In article <328@msa3b.UUCP> kevin@msa3b.UUCP (Kevin P. Kleinfelter) writes: > > Is there any way I can create a "bootable" floppy so that if my hard disks > crash, I can restore from a backup after replacing the hard drive and booting > from floppy? You should be able to do this with 'sysadm', or perhaps mkboot, though I've always dd'd the original, and then mucked with the files on it. Now, how to I make a bootable CTC tape? I've put a filesystem on a tape, but I can't seem to find a boot programme, nor exactly how (where) to put it on the tape. I admit it was quit late, but TFM didn't help either. The other options seem to be to reload the 6 essentials, plus the CTC driver, then restore; or build a boot floppy with a kernel that includes the CTC driver. -- Greg A. Woods woods@{eci386,gate,robohack,ontmoh,tmsoft,gpu.utcs.UToronto.CA,utorgpu.BITNET} +1-416-443-1734 [h] +1-416-595-5425 [w] Toronto, Ontario CANADA
les@chinet.chi.il.us (Leslie Mikesell) (07/08/89)
In article <276@tcsc3b2.UUCP> pag@tcsc3b2.UUCP (Philip A. Gross) writes: >Now, if you wish to make a bootable floppy, what you will need to do is first >take a look at /dev/rdsk/c0d0s? and compare these with your root drive on >the 700. I'd like to do this for the 3B2/400 & 6386 machines since they can't be booted from the tape device and it's no fun loading the core pack and tape drivers from floppies just to be able to restore your backup tapes (and I've had to do that ...). Can anyone give the exact procedure to make a bootable floppy that has the tape driver installed (network drivers would be nice too, but that probably wouldn't fit on the floppy)? Les Mikesell