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Old 05-14-2013, 10:46 AM   #1
vickynash
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Exclamation Linux Post Installation for Newbie


Hi Guys,

I am totally new to Linux and started learning it using the CBT Nuggets linux series for Beginners.
The Redhat version was recommended and used by the guy for demonstration.
The installation was demonstrated in text mode and i have done the same and installation was successfully complete.
Post installation red hat successfully loaded and brings up setup agent exiting it, brings up the screen as below:

"
Red Hat Enterprise Linux Server release 5.5 (Tikanga)
Kernel 2.6.18-194.el5 on an x86_64

localhost login:_ "

and i dont seem to understand what i should be doing after this because i havent given any username during installation but have given a password.

Please guide me as i'm totally new and starting from scratch.


And here are my computer specs:
Intel Dual Core 3.0Ghz processor
Gigabyte G31M-ES2L Motherboard
4GB DDR2 RAM
160GB (x2) Hard Drives - And i am using only one for this
Nvidia 9400GT 1GB Graphic Card

please do let me know if there is anything else i need to mention.

Last edited by vickynash; 05-16-2013 at 08:22 AM.
 
Old 05-14-2013, 11:15 AM   #2
zer0signal
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Well, if you used a kickstart script, the Root Password would be listed in the script.

If you're unsure of the root password, you can reboot the system, and when GRUB appears, you can hit 'e' on the boot line you want to modify and then append a '1' at the end of the linux boot line. that will bring in you into Single User mode. At that point, you can just do 'passwd' and reset the root password.
 
Old 05-14-2013, 12:25 PM   #3
DavidMcCann
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I think you've started from the wrong place!

Firstly, did you buy Red Hat? It's a commercial distro, so if you didn't pay all you've got is a demo version. No bug fixes will be available, for example. If you want to follow the instructions in the book but don't want to pay, get CentOS. That's free and almost completely identical to Red Hat.

Secondly, did you really intend to get a server version? That's why you've got no GUI and why it didn't ask you to create a user.
 
Old 05-14-2013, 12:45 PM   #4
RegulusDeneb
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Edited to add: David McCann's advice is probably better than mine below, in this case. But you'll probably need to know this for a CentOS installation.

I had that exact issue after installing Scientific Linux 6, which is a derivative of RH. SL6 did not fully download because I downloaded it from an html page instead of through bittorent, and that was the cause. I think the root password is just for administrative tasks, not for logging into the OS.

It seems like you're not on a machine with MS-DOS. If not, you might need to take the ISO DVD's to a computer with an MS-DOS terminal. Once there, run sha1sum and sha256sum in the directory where the ISO files are located to check whether it fully downloaded.

sha1sum: http://www.centos.org/docs/5/html/CD_burning_howto.html, see section 3.2.
sha256sum: http://www.labtestproject.com/files/.../sha256sum.exe
There's probably a website like this, but for RH, that gives you the correct sha1sum and sha256sum values to compare against those that DOS calculates.

Last edited by RegulusDeneb; 05-14-2013 at 12:58 PM.
 
Old 05-14-2013, 02:16 PM   #5
vickynash
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Thank you for the replies everyone.

@DavidMcCann - No i havent bought and dint even intend on getting server version of the redhat, instead got the iso file from my friend and was using it, as per ur advise ill use the centOS.

@RegulusDeneb - i had run the media test before installing the redhat and had confirmed that available iso was good. and also i got the iso after extracting too many rar files without any errors, so shouldn't be a download issue i guess ???

And before doing so i would like to try the suggestion of zer0signal, so as to know how it works

Will post back after doing all the recommended

Last edited by vickynash; 05-14-2013 at 02:24 PM.
 
Old 05-14-2013, 07:56 PM   #6
chrism01
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You might as well go with Centos & get the latest (6.4).
The checksum values are avail on the download section.
Burn the 2 DVDs as .iso (not as file) and do it slowly eg x5. Might be a bit slow, but fast burns have been known to cause issues.
https://www.centos.org/modules/tinyc...ndex.php?id=13
 
Old 05-16-2013, 08:21 AM   #7
vickynash
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i've installed CentOS 6.4 through linux text mode and got it installed without any errors.
After the reboot i edited the loader to single user mode and got booted after which i got the message localhostlogin,
for which i entered root to be the username and password the one set during installation.
And later read some stuff around, difference between text mode and GUI mode and startx, init5, telinit5 are used to switch between them.
but trying to do so i am unable to switch to GUI mode, or actually i'm unable to understand where i should be entering either of these commands.
and secondly during this installation unlike redhat 5.5 to create custom layout or creating paritions or editing partitions or configuring the system nothing appeared for the centOS 6.4 , although at the end i got the message stating installation successful or complete. is it due to 6.4 being simplified version or have i done something wrong.
Please explain, sorry for being so naive but i'm totally unaware of these so everything seems to be a sort of question for me
 
Old 05-16-2013, 03:24 PM   #8
zer0signal
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if you did a minimal install, then there will not be a GUI/Desktop; if you would like to have a desktop then run this command "provided you have the proper networking in place"

yum groupinstall 'GNOME Desktop Environment' 'X Window System'

init 5 # should bring you too the desktop login
 
Old 05-16-2013, 06:59 PM   #9
chrism01
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According to my desktop Centos 6.4, that would be
Code:
yum install "Desktop Platform" "X Window System"
They default to gnome, so its not listed by name, although the KDE alternative is.
TBH, I suspect that just asking for Desktop Platform would pull in X-Win as a dependency.
 
Old 05-16-2013, 08:26 PM   #10
zer0signal
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Chrism01, you're probably right w/ the xwindows aspect. I have not pulled anything down like that on 6.x yet, but he/she could probably just do;

yum grouplist # find what they want too

Either way should be a good learning experience for them, since he/she seems eager to learn.
 
Old 05-17-2013, 07:19 AM   #11
vickynash
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Firstly to clear out the doubt of he/she, i am HE - MALE :P
i realized my networking wasn't proper from the error messages in trying to use the yum groupinstall,
so i thought the best way would be to install cent OS in the default GUI desktop mode and installation was successful.
And in the installation i choose i choose create custom layout to follow the book which says to have three mount points / , /boot , swap. Finally installation was done and asked for a reboot.
After the reboot nothing comes up nor grub loads nor cmd works nothing just happens,
So felt there should be something wrong from end and re-installed with default layout created by system (screenshot attached) itself in which it appeared to be different from that i tried configuring earlier.
What are the differences and what should be aware of while creating mount points if that's what causing the issue. The below image is the layout created by system , can anyone explain me the differences !

And main question by installing either way the OS does not boot i am just stuck at the starting cmd page as seen in the attached screenshot. Please advise.

My attempt in trying to learn linux is going the hardway
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Old 05-17-2013, 08:09 AM   #12
chrism01
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Interesting; might be handy if you posted the HW specs.

Anyway, the 1st picture shows the system has created a /boot partition (sda1) and created sda2 as a PV=>VG=> 3 x LV =

a) / ie root file system
b) /home
c) swap

Unusually, it hasn't used sdb.. Normally if you just tell it to use defaults, it'll use every HDD it can see.

Its possible (although unusual) that having set the BIOS to boot from the CD/DVD first (normal for an install), its somehow decided it MUST have a disk in there to start up.
Assuming the install went ok, try a hard boot and jump into the BIOS & change the boot order so that the sda disk comes first.
 
Old 05-17-2013, 09:21 AM   #13
vickynash
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Duplicate post

Last edited by vickynash; 05-17-2013 at 09:26 AM.
 
Old 05-17-2013, 09:23 AM   #14
vickynash
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Intel Dual Core 3.0Ghz processor
Gigabyte G31M-ES2L Motherboard
4GB DDR2 RAM
160GB (x2) Hard Drives
Nvidia 9400GT 1GB Graphic Card

actually i thought the same nd changed boot priority , first being hdd but somehow the boot from cd/dvd msg still comes off nd doesnt load further even if i had left my com idle for over 30 mins

Last edited by vickynash; 05-17-2013 at 09:26 AM.
 
Old 05-18-2013, 06:33 AM   #15
vickynash
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i've redone the same thing by selecting first boot device as HDD and i get stuck at the same page as in provided screenshot but i just dont get the "Boot from CD/DVD:" message.
Either way it just gets stucked at this page !!!
 
  


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