[clug] dist-upgrade to Debian Lenny - flagged boot problem

Felix Karpfen felix.karpfen at gmail.com
Tue Aug 11 22:51:53 MDT 2009

Daniel Pittman wrote:
> Felix Karpfen <felix.karpfen at gmail.com> writes:
>> Daniel Pittman wrote:
>>> Felix Karpfen <felix.karpfen at gmail.com> writes:
>>>> The Debian Lenny Release Notes include the following entry:
>>>>  4.8. System boot hangs on Waiting for root file system
>>>>  Procedure to recover from /dev/hda that became /dev/sda
>>> [...]
>>>> Given that only "some users" encounter this problem, what do I have to do to
>>>> not fall into this "some user" subdivision?
> Anyway, moving to some physically independent solution to mounting is a good
> idea; recent kernels are moving more and more to asynchronous probing, which
> means that *if you have multiple physical HBAs[1] you will *NOT* have a
> predictable device detection order over boot*.

I <believe|hope> that this is the answer to my original question. I use 
a desktop computer which has served me adequately for some 5 years! HBAs 
and Fibre Channel loops (after checking out what they are on the 
Internet!) are well and truly over my horizon.

>> While I have now located the needed details for UUID mapping, the release
>> notes - which assume that I use GRUB to boot - do not give me any guidance
>> on what needs changing in /etc/lilo.conf.
> Well, assuming you use the stock initrd, "root=UUID=whatever" in the kernel
> command line is all you need.

If that were the whole story, I might not have written for advice.  But 
I was under the impression that the UUID mapping also needs to be 
extended to all the entries in /etc/fstab.  On my setup, these are numerous!

> I hope it helped.  I had assumed you would ask further questions if the five
> words were not enough ... and I did expect they were not.  It is just the case
> that with so many different answers something comprehensive would fill out the
> release notes. ;)
> Footnotes: 
> [1]  ...and most of us do, these days, at least in laptops.  Desktops, maybe
>      not quite so much.  Typically in the form of an Intel chipset with two
>      controllers built in.
There is a great deal more info in the reply that is well beyond my 
current <understanding|competence>.  But if my assumption - flagged 
above - is correct, then I believe that I can safely remain in my state 
of blissful ignorance.

Again, thank you for taking the time to help me to make sense of the 
Debian release notes.


Felix Karpfen
Public Key 72FDF9DF (DH/DSA)

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