FixIt CD Tool Availability

[Michel Talon]

Drew Tomlinson wrote:
> The command 'gmirror label root ad8a ad6a' does not return an error but
> no device is created in /dev/mirror
>
> The command 'zpool create data  raid1z ad14d ad12d ad8d ad6d' gives me
> an error about the ZFS library being unavailable.
>
> Are these tools supposed to work when using the Fix It CD?  If not, does
> 7.2-RELEASE-amd64-disc1.iso have these tools?

One can load kernel modules from the fixit cdrom, but as far as i
remember this requires some manipulations.

What i do is, from the fixit prompt:
chroot /mnt2
to go to the full system available on the cdrom under /mnt2. But then
required things are missing, so i do further:
mount -t devfs devfs /dev
because access to /dev is frequently required, and for commodity
set -o emacs
(to have shell history and editing)
export PAGER=more
(to be able to access man pages)
After that one has a more or less standard environment. Sometimes one
needs a writable filesystem, for example for accessing internet
(dhclient, resolv.conf, etc.)
mount -t tmpfs tmpfs /tmp
does that.

It would be nice to have a shell script on the fixit cdrom doing similar
things automatically when one accesses fixit.

In your case i suspect appropriate kernel modules were not loaded
and commands failed silently.


--

Michel TALON

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[Drew Tomlinson]

Michel Talon wrote:

> Drew Tomlinson wrote:
>  
>> The command 'gmirror label root ad8a ad6a' does not return an error but
>> no device is created in /dev/mirror
>>
>> The command 'zpool create data  raid1z ad14d ad12d ad8d ad6d' gives me
>> an error about the ZFS library being unavailable.
>>
>> Are these tools supposed to work when using the Fix It CD?  If not, does
>> 7.2-RELEASE-amd64-disc1.iso have these tools?
>>    
>
> One can load kernel modules from the fixit cdrom, but as far as i
> remember this requires some manipulations.
>
> What i do is, from the fixit prompt:
> chroot /mnt2
> to go to the full system available on the cdrom under /mnt2. But then
> required things are missing, so i do further:
> mount -t devfs devfs /dev
> because access to /dev is frequently required, and for commodity
> set -o emacs
> (to have shell history and editing)
> export PAGER=more
> (to be able to access man pages)
> After that one has a more or less standard environment. Sometimes one
> needs a writable filesystem, for example for accessing internet
> (dhclient, resolv.conf, etc.)
> mount -t tmpfs tmpfs /tmp
> does that.
>  

Thank you for your reply.  I performed the steps you suggested above.  
However I am still stuck.  After the above, my chrooted /dev did not
have any device nodes so I must have done something wrong.  I have also
tried booting the DVD but the issues are the same.  I guess the guide at
http://www.freebsd.org/doc/en/articles/remote-install/installation.html 
is missing something required for 7.2.

> It would be nice to have a shell script on the fixit cdrom doing similar
> things automatically when one accesses fixit.
>
> In your case i suspect appropriate kernel modules were not loaded
> and commands failed silently.
>  

I have performed several Gentoo Linux installtions from its LiveCD so I
understand the concept of running a system from CD to prepare hard
drives and install.  However I am missing some piece to make FreeBSDs
LiveCD a functional environment.

I'm getting frustrated...  :)

Thanks again for your help,

Drew


--
Be a Great Magician!
Visit The Alchemist's Warehouse

http://www.alchemistswarehouse.com

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[Mel Flynn-2]

On Saturday 04 July 2009 11:06:52 Michel Talon wrote:

> Drew Tomlinson wrote:
> > The command 'gmirror label root ad8a ad6a' does not return an error but
> > no device is created in /dev/mirror
> >
> > The command 'zpool create data  raid1z ad14d ad12d ad8d ad6d' gives me
> > an error about the ZFS library being unavailable.
> >
> > Are these tools supposed to work when using the Fix It CD?  If not, does
> > 7.2-RELEASE-amd64-disc1.iso have these tools?
>
> One can load kernel modules from the fixit cdrom, but as far as i
> remember this requires some manipulations.

<snip chrooting to /mnt2 and redoing shell env>

The manipulation is far simpler:
sysctl kern.module_path=/dist/boot/kernel

It's so simple, I don't know why it's not set in the fixit shell. And after
battling with gmirror and a faulty IDE cable last weekend, I really hated
typing it.
--
Mel
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[Drew Tomlinson]

Michel Talon wrote:

> Drew Tomlinson wrote:
>  
>> The command 'gmirror label root ad8a ad6a' does not return an error but
>> no device is created in /dev/mirror
>>
>> The command 'zpool create data  raid1z ad14d ad12d ad8d ad6d' gives me
>> an error about the ZFS library being unavailable.
>>
>> Are these tools supposed to work when using the Fix It CD?  If not, does
>> 7.2-RELEASE-amd64-disc1.iso have these tools?
>>    
>
> One can load kernel modules from the fixit cdrom, but as far as i
> remember this requires some manipulations.
>
> What i do is, from the fixit prompt:
> chroot /mnt2
> to go to the full system available on the cdrom under /mnt2. But then
> required things are missing, so i do further:
> mount -t devfs devfs /dev
> because access to /dev is frequently required, and for commodity
> set -o emacs
> (to have shell history and editing)
> export PAGER=more
> (to be able to access man pages)
> After that one has a more or less standard environment. Sometimes one
> needs a writable filesystem, for example for accessing internet
> (dhclient, resolv.conf, etc.)
> mount -t tmpfs tmpfs /tmp
> does that.
>
> It would be nice to have a shell script on the fixit cdrom doing similar
> things automatically when one accesses fixit.
>
> In your case i suspect appropriate kernel modules were not loaded
> and commands failed silently.
>  

For the archives, the above works.  I don't know what I did wrong the
first day I tried.  However after walking away for a few days and then
starting over, the commands above gave me a functional FixIt
environment.  Thanks!

Cheers,

Drew

--
Be a Great Magician!
Visit The Alchemist's Warehouse

http://www.alchemistswarehouse.com

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