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Old 05-13-2008, 12:09 PM   #1
zigi1234
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Registered: May 2008
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parameters to "root=" boot option


Hi,
I just bought a Fedora book with a dvd.
When I tried to install, and it failed, I secified
at the boot: prompt the following:
linux root=/dev1/hdg3

I got the gollowing:


Compressed image found at block 0
cannot open root device "hdg3" or unknown-block(0,0)

append a correct "root=" boot option.
 
Old 05-13-2008, 12:21 PM   #2
GrapefruiTgirl
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Has the Fedora actually been installed yet? Or are you just starting? Since you say the install failed, I suspect you are still trying to install, in which case you should not need to specify a root= option yet. (I haven't tried a Fedora, but I venture to guess that the actual installation process is not that much different from any other Linux installation.)

With any of the Linuxes I have installed to date, one need only specify the kernel to boot to use FOR the installation, such as "Boot: Linux". After the installation has been done, if you later want to boot your installation using the DVD, you would need the root= option. You would specify the partition (/dev/hdx#) where you installed the Linux to. Like:

Boot: Linux root=/dev/hdg3

if you had installed the Linux to /dev/hdg3

Does this help? If not, please clarify/describe exactly what steps you take during this process of installing.

Sasha
 
Old 05-13-2008, 12:57 PM   #3
zigi1234
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Thanks for responding, Sasha.

Thanks for responding, Sasha.

The hard drive on my computer is empty.
I am trying to install Fedorah.
It seems to me that the prompt I am getting relates to where the
system expects to find the image....I may be wrong, of course.
Well, the image is, hopefully, on the DVD. And, as I failed to install
straight from the DVD, I got:

Cannot open device="<NULL>" or unknown-block(202,3)
Please append a correct "root=" boot option.
Kernel Panic - not synching
VFS: Unable to mount root fs on unknown-block(202,3)

...This is when I tried the linux root=/dev/hdg3....
 
Old 05-13-2008, 01:08 PM   #4
GrapefruiTgirl
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Might need someone with Fedora experience to help you, but:

1: the first post, it found the compressed image apparently, because it said "found compressed image..".

2: You are correct, the compressed image is, of course, on the DVD for the time being.

3: If you can identify what device the DVD sees itself as being inserted into, maybe specifying that as the root filesystem would work. For example, a DVD or CD drive is often something like /dev/hdb (when it is the second device) or /dev/hdc (when it is the 3rd device) or could be /dev/sr0 (when it is the only SCSI optical device).. Hard to say, and I do not know a quick easy way to figure out what the DVD-ROM is being labeled at that early stage in the process.
You might even try root=/dev/cdrom and see what it says..

EDIT: Are there no instructions whatsoever included with this book/DVD?

Last edited by GrapefruiTgirl; 05-13-2008 at 01:09 PM.
 
Old 05-13-2008, 02:35 PM   #5
zigi1234
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Thanks for responding GrapefruiTgirl.

As it stands now, I do not know how to identify my CD-ROM drive.
I think it might even be a DVD drive.
The book that came with the DVD is not much help.
Any idea?
 
  


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