[ale] CentOS 7 Net Install - /dev/root not found

[Lightner, Jeff]

Not sure if it is relevant but I stumbled across a link talking about not using NFSv4 when using /net while I was researching an NFSv4 issue not related to /net.   You might want to make sure you’re specifying NFSv3 when accessing /net if you’re doing a separate mount from it.

Unfortunately I don’t have the full details of what I saw because it wasn’t relevant to the issue I was investigating.


From: ale-bounces at ale.org [mailto:ale-bounces at ale.org] On Behalf Of Sergio Chaves
Sent: Tuesday, December 08, 2015 5:24 PM
To: Atlanta Linux Enthusiasts
Subject: Re: [ale] CentOS 7 Net Install - /dev/root not found


Not on initial boot.
Just got home and will do it later on tonight.  I will post the results.
On Dec 8, 2015 2:54 PM, "Jim Kinney" <jim.kinney at gmail.com<mailto:jim.kinney at gmail.com>> wrote:
Did you verify the checksum of the ISO after download and again during the initial bootup? It sounds like a bit flipped in the kernel boot line for the initrd or for the later root switch to CD root system.

On Tue, 2015-12-08 at 14:22 -0500, Sergio Chaves wrote:
I have an old server where I plan to install CentOS 7 for my certification exams. The DVD player is broken and I am trying to do a Net Install using a USB CD player.
Everything works up to the point where the system says that file system mounted OK. After a minute or so, it drops to a dracut shell with a .txt file generated (cannot remember the name now).
File says /dev/root not found. I changed the hd:LABEL to /dev/sr0, /dev/cdrom, etc. but with same results
Googling returns several other options. After trying a half a dozen of them, I gave up.
I am wondering if anyone has a real solution for this, please let me know as my frustration level is rising quite rapidly. As an FYI, I do not have a "boot from USB" option.
I know I can buy a USB-DVD but I really would like to figure this one out.

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