CD-RW setup made Debian crash...

freeindy · 12-10-2002, 11:11 AM

HI ye all!

I have a debian woody installed on my PC. I wanted to burn on my CD-RW so I installed 'cdrecord'. But it didn't work and reading through a lot of forums I found out that I had to "do" CD-RW HOWTO process. So I did. When rebooting, it doesn't bootmy linux anymore

This is what is popped out:
-----------------------------------------------
hdb: driver not present
VFS: Cannot open root device 3:42
kernel-panic: VFS : Unable to mount root fs on 3:42
-----------------------------------------------

Now I'm guessing that it has something to do with "append="hdb=scsi" but I can't figure out what to do.

And one more thing. Can I get "into" linux by typing something during startup at lilo???

Cheers a million.

Indy

Thymox · 12-10-2002, 11:15 AM

The line should properly be append=hdb=ide-scsi. If you can, boot from a rescue medium (floppy/CD) and edit your lilo/grub.conf file appropriately, and reboot. If it works and you can boot OK, then run cdrecord -scanbus to find out your scsi disk number.

crashmeister · 12-10-2002, 03:19 PM

Are you sure the writer is on hdb?I think I screwed up about anything possible when I got mine - including lilo lines that didn't work and kernel configurations but that didn't affect the booting process.

freeindy · 12-11-2002, 04:17 AM

First of all, Thanks Thymox & CrashMeister for replying.

Thymox: It was appended as : append="hdb=ide-scsi". Sorry for that but I didn't know how to get to lilo.conf file before I realized (from you) that I could reboot with my floppy...
Anyway, this is how it is written in lilo.conf:
------------------------------------
default=Debian

image=/vmlinuz
label=Debian
read-only
append="hdb=ide-scsi"
------------------------------------

CarshMeister: I'm not sure at all. In fact, I haven't a clue. My writer was linked to hdc (cdrom->hdc) but the CD-RW Howto told me to change it. This is the only reader/writer I have installed on my PC. To be honest, this Howto file is very confusing for a newbie like me.

Any ideas.

Thanks again,

Indy

Thymox · 12-11-2002, 04:38 AM

Nooooo....!

If originally cdrom-->hdc, then you need to have
append="hdc=ide-scsi"
in your lilo.conf file. And don't forget to run /sbin/lilo to put the changes into effect.

crashmeister · 12-11-2002, 04:52 AM

Check /var/log/dmesg to see where your writer is and take it from there.

freeindy · 12-11-2002, 09:23 AM

So... changed to hdc again. Now it boots OK... Thanks a lot!

Thymox:
But still, when I type 'cdrecord -scanbus' I still get following message:
----------------------
cdrecord: No such file or directory. Cannot open SCSI driver
cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.
----------------------
(Its on root I get it!)

Any idea. I pretty much followed the CD-Writing howto procedure although I was very confused during process.

Indy

crashmeister · 12-11-2002, 09:41 AM

In /dev cdrom needs to be linked to /dev/scd0
At lest thats how mine works.Do you got the regular debian kernel?

Thymox · 12-11-2002, 10:48 AM

You changed the lilo.conf file... did you re-run lilo?
You re-ran lilo... what does lsmod show?

freeindy · 12-11-2002, 03:36 PM

CRASHMEISTER:
Yepp, it's linked to /dev/scd0 :
-----------------------------
lrwxrwxrwx 1 root root 4 Dec 11 15:35 cdrom -> scd0
------------------------------

THYMOX:
Yepp, and re-ran lilo. lsmod says:
-------------------------------
Module Size Used by
lockd 42420 0 (autoclean) (unused)
sunrpc 57816 0 (autoclean) [lockd]
sb 32456 0
uart401 5872 0 [sb]
sound 56384 0 [sb uart401]
soundlow 384 0 [sound]
soundcore 2452 5 [sb sound]
3c509 6324 1
af_packet 6152 1
unix 11352 23 (autoclean)
-------------------------------

Does this help?
Cheers, Indy

Thymox · 12-11-2002, 03:41 PM

Hmmm, it seems that the modules aren't being loaded. What do your /etc/modules and /etc/modules.conf (or whatever their Debian equivalents are) say? I have:

Code:

/etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file should contain the names of kernel modules that are
# to be loaded at boot time, one per line.  Comments begin with
# a `#', and everything on the line after them are ignored.
scsi_hostadapter

/etc/modules.conf
probeall scsi_hostadapter ide-scsi

freeindy · 12-12-2002, 03:50 AM

Nothing about scsi_hostadapter.
All there is relating to it is what was written in cd-writing howto:
------------
options ide-cd ignore=hdc
alias scd0 sr_mod
pre-install sg modprobe ide-scsi
pre-install sr_mod modprobe ide-scsi
pre-install ide-scsi modprobe ide-cd
------------

I don't know but using modconf, I can't load the ide-scsi module. It fails:
--------------------
modprobe: Can't locate module ide-cd
modprobe: pre-install ide-scsi failed
modprobe: insmod ide-scsi failed

Installation failed
--------------------

I hope this was of any help...

Indy

sewer_monkey · 12-12-2002, 06:52 PM

I would have to add (to all this) that LILO kinda sux... Not very user friendly. Whenever you can stick with GRUB. Just my $0.02...

crashmeister · 12-13-2002, 02:38 AM

You may have to recompile your kernel.If you do and don't have any RAM issues just compile all the scsi stuff right in the kernel not as modules.Works fine for me and I have one thing less to worry about.

freeindy · 12-13-2002, 03:21 AM

CRASHMEISTER:
I would like to do that but I don't know how to. You see, I only have had linux on my PC for two months. And debian I found was best for me for the reason there was not too much shit installed during installation and that this was I could learn a lot by setting up by myself and by help of good people like you.
So, every time some mention about recompiling, i don't know how to because in debian you just add the package (which I never managed either). So please, could you give me instructions on this?

SEWER_MONKEY: I'll look into it. last time I installed i got lost and with lilo it was more straight forward. But then again, I'm not very experienced in linux. Not yet at least... :-)

cheers
Indy