DaemonForums  

Go Back   DaemonForums > FreeBSD > FreeBSD Installation and Upgrading

FreeBSD Installation and Upgrading Installing and upgrading FreeBSD.

Reply
 
Thread Tools Display Modes
  #1   (View Single Post)  
Old 17th July 2008
dk_netsvil dk_netsvil is offline
Real Name: Devon
Fdisk Soldier
 
Join Date: May 2008
Location: New York
Posts: 75
Thanked 7 Times in 7 Posts
Default Clean Install assistance requested

I'd like to preface this request with the statement that I have done somewhere in the neighborhood of 50 FreeBSD installs in the past year and have 5 years of experience as a Systems Administrator.

Is there any way within the FreeBSD installation media to clear out the records of old FreeBSD installs? Short of going to an external utility I have found no means to prevent the install procedure from adding F1, F2, F3, F4, etc to the boot menu.

What I really want is to just completely erase it and start from scratch - anyone know of something on the FreeBSD install media that does this?
Reply With Quote
  #2   (View Single Post)  
Old 17th July 2008
graudeejs's Avatar
graudeejs graudeejs is offline
Real Name: Aldis Berjoza
formerly killasmurf86
 
Join Date: Jul 2008
Location: Riga, Latvia
Posts: 588
Thanked 29 Times in 26 Posts
Default

Put CD, repartition disk (you can skip this on partitions you keep data), make new labels, pick distributions, set up net, and install
then with packages/ports install what you want
simple, almost the way you did 1st time


If you don't need to save data, then just repartition all disk..... etc

[if i understand you correctly]
Reply With Quote
  #3   (View Single Post)  
Old 17th July 2008
dk_netsvil dk_netsvil is offline
Real Name: Devon
Fdisk Soldier
 
Join Date: May 2008
Location: New York
Posts: 75
Thanked 7 Times in 7 Posts
Default

I've tried just repartitioning and using different partition geometries and I still see as many as 4 or 5 alternative boot options. I've gone so far as overwriting the contents of my disks with the contents of /dev/zero and /dev/urandom but they keep showing up.
Reply With Quote
  #4   (View Single Post)  
Old 17th July 2008
graudeejs's Avatar
graudeejs graudeejs is offline
Real Name: Aldis Berjoza
formerly killasmurf86
 
Join Date: Jul 2008
Location: Riga, Latvia
Posts: 588
Thanked 29 Times in 26 Posts
Default

Boot options?
are you speaking about boot meny where you can boot in different modes, or before that, you can pick which drive to boot from?

How many HDD's you got in your box?
Reply With Quote
  #5   (View Single Post)  
Old 17th July 2008
dk_netsvil dk_netsvil is offline
Real Name: Devon
Fdisk Soldier
 
Join Date: May 2008
Location: New York
Posts: 75
Thanked 7 Times in 7 Posts
Default

I have 2 SCSI drives that are not currently attached to a RAID card, and I'm only working with the first drive, ad0. When I complete the install and reboot the boot loaded displays that F1-F4 are FreeBSD, but none of them have valid boot loaders, and F5 is Disk 1 which also does not have a valid boot loader. I want to clear this menu.
Reply With Quote
  #6   (View Single Post)  
Old 17th July 2008
graudeejs's Avatar
graudeejs graudeejs is offline
Real Name: Aldis Berjoza
formerly killasmurf86
 
Join Date: Jul 2008
Location: Riga, Latvia
Posts: 588
Thanked 29 Times in 26 Posts
Default

could it be some kind of boot flag?
we had discussion on this matter in last 1-2 weeks ago, but i don't remember if we solved it.....

could you check using linux live CD how many boot flags you have? (shit happens, somehow, [i didn't believe it either], once i had 2 flags on same drive)
Reply With Quote
  #7   (View Single Post)  
Old 17th July 2008
dk_netsvil dk_netsvil is offline
Real Name: Devon
Fdisk Soldier
 
Join Date: May 2008
Location: New York
Posts: 75
Thanked 7 Times in 7 Posts
Default

Using the Gentoo LiveCD I verified that there is only the one boot flag set. I have also verified this using a Debian LiveCD (just to cover my bases).

At this point I think my only option is to locate a DOS floppy and fdisk the MBR.
Reply With Quote
  #8   (View Single Post)  
Old 17th July 2008
graudeejs's Avatar
graudeejs graudeejs is offline
Real Name: Aldis Berjoza
formerly killasmurf86
 
Join Date: Jul 2008
Location: Riga, Latvia
Posts: 588
Thanked 29 Times in 26 Posts
Default

No, no need for that, you can do this with any *nix using dd, just google, how to backup and restore MBR under linux....
but instead write nulls to mbr
Reply With Quote
  #9   (View Single Post)  
Old 17th July 2008
J65nko J65nko is offline
Administrator
 
Join Date: May 2008
Location: Budel - the Netherlands
Posts: 3,154
Thanked 182 Times in 149 Posts
Default

The following command will zero out the Master Boot Record, which includes the partition table, located at the first sector of a drive
Code:
# dd if=/dev/zero of=/dev/ad0 bs=512 count=1
__________________
You don't need to be a genius to debug a pf.conf firewall ruleset, you just need the guts to run tcpdump
Reply With Quote
Old 17th July 2008
dk_netsvil dk_netsvil is offline
Real Name: Devon
Fdisk Soldier
 
Join Date: May 2008
Location: New York
Posts: 75
Thanked 7 Times in 7 Posts
Default

I took advantage of that exact command, which also didn't work. Here's what did, ultimately:

First, I installed Linux and the GRUB bootloader, replacing the old BSD loader. A reboot indicated that my old boot loader was now gone and the GRUB boot loader was in charge.

Second, I booted a LiveCD and wrote /dev/zero to my first drive using, as suggested: dd if=/dev/zero of=/dev/ad0 bs=512 count=1

Finally, I installed FreeBSD 7 and my problems were solved.
Reply With Quote
Old 18th July 2008
phoenix's Avatar
phoenix phoenix is offline
Risen from the ashes
 
Join Date: May 2008
Posts: 699
Thanked 90 Times in 81 Posts
Default

Quote:
Originally Posted by dk_netsvil View Post
I took advantage of that exact command, which also didn't work. Here's what did, ultimately:

First, I installed Linux and the GRUB bootloader, replacing the old BSD loader. A reboot indicated that my old boot loader was now gone and the GRUB boot loader was in charge.

Second, I booted a LiveCD and wrote /dev/zero to my first drive using, as suggested: dd if=/dev/zero of=/dev/ad0 bs=512 count=1

Finally, I installed FreeBSD 7 and my problems were solved.
Don't install the FreeBSD boot loader. When it asks during the install, always go with the middle option "Standard master boot record".

What's happening is that the boot loader scans the MBR, and adds a listing for each slice it finds. You (for whatever reason) created four slices. Hence, it creates the four F? entries in the boot loader. Only the first one has a kernel, so it's the only one that can actually be booted into.

The FreeBSD boot loader fits ino the first block of the harddrive, making it a whopping 512 bytes in size. Don't expect anyhing exciting from it.

Reading the man pages for booting and the loader will explain all this.
__________________
Freddie

Help for FreeBSD: Handbook, FAQ, man pages, mailing lists.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Thoughts on "make deinstall clean" Mantazz FreeBSD Ports and Packages 8 14th September 2009 06:45 PM
How to clean up /usr? nihonto OpenBSD General 5 22nd June 2008 09:23 AM
Upgrading Drupal 5.5 or clean install cwhitmore FreeBSD Ports and Packages 1 11th June 2008 07:35 AM


All times are GMT. The time now is 05:28 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content copyright © 2007-2010, the authors
Daemon image copyright ©1988, Marshall Kirk McKusick