FreeBSD 9 cannot boot

[sw2wolf]

Cannot work out which disk we are booting from.
Guessed BIOS device 0xffffffff not found by probesm default to disk0.

panic: free: guard1 fail @ 0x1f501dc0 from /usr/src/sys/boot/i386/loader/../../common/module.c:1004

----> Press a key on the console to reboot <-----

What does it mean?


Sincerely!

 

[Beeblebrox]

1. Do you get to the BTX loader prompt, or is the error before BTX?
2. What do you have for your disk geometry (gpart show)? Have you added / removed any HDD?
3. What do you have in /boot/loader.conf for vfs.root.mountfrom?

 

[sw2wolf]

Do you get to the BTX loader prompt, or is the error before BTX?

I do get the BTX loader

What do you have for your disk geometry (gpart show)? Have you added / removed any HDD?

I have not added / removed any HDD.

#gpart show ada0
=>      63  39874304  ada0  MBR  (19G)
        63  19534977     1  !12  [active]  (9.3G)
  19535040  20338668     2  freebsd  (9.7G)
  39873708       659        - free -  (329k)

#gaprt show ada0s2
=>       0  20338668  ada0s2  BSD  (9.7G)
         0  17178624       1  freebsd-ufs  (8.2G)
  17178624   3160043       2  freebsd-swap  (1.5G)
  20338667         1          - free -  (512B)

What do you have in /boot/loader.conf for vfs.root.mountfrom?

It is a new system installed by

tar -zxf base.txz && tar -zxf kernel.txz

Sincerely!

 

[Beeblebrox]

- At the BTX menu select item "escape to loader prompt"
- At loader prompt, press "?", which will show you the drives available for booting from. Then something like

ufs:da0s1c

Depending on your file system, and disk geom as listed in the ? step. You will get a message at the loader prompt explaining how to use the "boot from" syntax.
- This should get you booted into a FreeBSD environment. To permanently correct, do:
# gpart show
Take note of the name of the section/slice where you have root. Then go to /boot/loader.conf and make the necessary correction to to the entry for:

vfs.root.mountfrom="ufs:da0s1c"

or if zfs, as zfs:zpool.

It is a new system installed by #tar -zxf base.txz && tar -zxf kernel.txz

This is irrelevant to your problem, with the exception that you have not made necessary changes / corrections to the config files in the New System.

 

[sw2wolf]

At the BTX menu select item "escape to loader prompt"
At loader prompt, press "?", which will show you the drives available for booting from. Then something like

When I press "?", it shows commands I can use. lsdev shows:

cd devices
disk devices
    disk0  BIOS  drive  C:
        disk0S1: FAT-32
            disk0S2a: FFS
            disk0S2b: swap

Then how to continue booting?

Best Regards!

 

[Beeblebrox]

Ah, my mistake. BTX loader also can drop to "rescue mode" when "mounting root fails". ? lists geom devices in this instance - while the same, lists commands when dropping to "loader prompt".

Anyway, from your post I assume that your root is on disk0S2a: FFS?
You have two options:
1. Boot from a live CD or something, then mount da0s2a, open /boot/loader.conf in text editor and fix

vfs.root.mountfrom="ffs:da0s2a"

2. OR, in the "loader prompt" environment, do:
# set vfs.root.mountfrom="ffs:da0s2a"
# boot
If it does not work try ufs instead of ffs or correct for the HDD geom (maybe it's ada0 instead of da0. You could also try disk0S2a).

 

[wblock@]

It is a new system installed by

tar -zxf base.txz && tar -zxf kernel.txz

Why are you doing that? It does not set up /etc/fstab, likely the cause of this problem.

 

[sw2wolf]

All of the following command report:

CPU doesnot support long mode" when executing `boot`

set vfs.root.mountfrom="ffs:da0s2a"
set vfs.root.mountfrom="ufs:da0s2a"

set vfs.root.mountfrom="ffs:ada0s2a"
set vfs.root.mountfrom="ufs:ada0s2a"

set vfs.root.mountfrom="ffs:disk0s2a"
set vfs.root.mountfrom="ufs:disk0s2a"

So the downloaded files (base.txz and kernel.txz) are the 64 bit version. But the old box is a 32 bit machine. I will reinstall 32 bit FreeBSD.

Sorry to disturb all of you.