hi all,
am very new to linux and currently working on CentOS.
need help on which books to refer to understand the workings of the OS (detailed understanding)
stuffs like boot process, inodes etc.
appreciate any kind of help.
regards
Booting to CentOS Linux problem. I have an HP desktop PC with an AMD CPU and win8.1 installed on it with UEFI as the boot process. The CentOS7 DVD indicates that I have installed the CentOS successfully. When I boot the PC it does take me to a menu offering CentOS and Win8. Win 8 will boot correctly. However, when I try to boot to CentOS I get a screen that says “Kernel not found”. The boot loading process continues until it ultimately brings up a terminal login screen. When I try to login with my password and usr name it tells me that they are wrong. I suspect the Kernel not found is the real problem but I can't get into the CentOS program to see if GRUB or any of the other programs are missing or defective. So far I have not disabled the UEFI since I didn't think I needed to. Any suggestions?
Hi All! I'm new to linux world and I want to learn more about the OS and other stuffs. What linux distro is good newbie like I to start with. I want to learn the ebox can anyone help me? Thanks!
regards
Hi, I'm pretty new to Linux.
I'm currently working on a project in my Linux Administration class, but have run into a bit of a bump.
I'm tasked with booting Linux (currently using CentOS 7) through the GRUB prompt. I've loaded the kernel, but I'm having an issue with the initrd.
I've tried both of these commands:
"linux /boot/initrd-plymouth.img"
"linux /boot/initramfs-3.10.0-123.el7.x86_64.img"
Neither of these commands have worked. It only returns the message "invalid magic number" for both of the commands. Any ideas on how I can fix this?
Thanks for any help in advance. It should help me understand Linux better!
Hello,
I am new to Linux images (pxe, livecd). I would like to add files to a linux image, like something under etc or var, and have the files be available on the client.
The server I am working on was already configured with a pxe image, and only 2 files are present under the pxe client folder: initrd and vmlinuz. So I am wondering if either of these files contain the dirs /etc, /var, etc..., and how I could add files to them.
To give some background, I have done the same thing in Windows. An image in Windows is typically either boot.img or install.img. You can mount either of these to a folder using the Windows SDK tool imagex.exe /mountrw <img file> 1 <mount point>. From here you can add/remove/modify any files you want. Then commit the changes with imagex.exe /unmount <mountpoint> /commit.
Can someone provide insight to the linux image creation process, which of the files (initrd, vmlinuz/vmlinux, etc...) contain what for the client boot, or something similar to the Windows Image editing process?
I know I'm asking for a range of info, but pointers to any material to help my understanding will be greatly appreciated.
Thanks,
Jon
I am very new to Linux, please excuse my question as I am sure it is going to sound a bit obvious to those with more than a novice amount of experience. I've done a lot of researching online but I cannot seem to find the information that I am specifically looking for.
I am confused about the definition of a "filesystem".
I am understanding the basic components of a Linux filesystem and that it includes folders like /boot, /dev, /usr, /var, etc...
I am also reading about other filesystems like HDFS and GPFS used in server applications. Am understanding they run on "nodes" which are separate parts of a working cluster. How do those work and what is the difference? Do they run on top of the Linux filesystem I am thinking of or are they completely different? Do these both have the /boot, /opt, etc subdirectories or am I completely off here?
To rephrase, do these HDFS and GPFS systems replace the basic Linux filesystem I am thinking of or are they mounted separately somehow? Not really sure how to phrase my question...
Thanks for any clarification.
Hi,
I am new to the installation of Linux, and wish to install 3 different distro's on the same hard disk.
I have installed Centos 7 successfully as follows :
The /boot is /dev/sda2
/dev/sda1 is listed as unknown so i assume it is the Master Boot Record with Grub installed. I do obtain the option to boot to the various kernels after updating the OS.
/dev/sda3 is a Linux LVM with the various partitions i required.
When i installed the CentOS 7 the installer stated an error about the bootable partition - which was effectively /boot, so i moved this to /dev/sda2.
What i am not sure about is that if i want to install 2 other Linux OS's will i run out of /dev/sdaX assignments ?.
I read somewhere that there are 4 maximum that can be used a /boot (SDA1, SDA2, SDA3, SDA4), so does this mean i can only install one other OS ?.
Any guidance gratefully received. Thanks.
Regards,
Richard.
I am totally unaware about linux;but I am suggested by my teachers to learn REDhat. i am not getting how to start;from where to get REDhat operating system;which book or online site to refer to;so that i can start learning REDHAT.
please as my question;give me a detailed answer.I really am naive at Linux.
Hello All. This is my first post here. I am worse than a newbie; I'm a PC dinosaur! Not joking either.
Recently got a Dell Inspiron 3048 with Windows 8.1 pre installed. As I am a die hard XP user (my other PC is a Dell Dimension 2400), and seeing that PC's days may be numbered, I want to start using Linux, and decided Mint 17.1 would be first on the list.
Ordered a Linux Mint 17.1 boot disk and went to install it. At the option for a dual boot with Windows, I got lost, and did not understand the "other" choice versus making Linux the only OS on the PC. I wound up wiping my HDD and lost contact with Windows 8.1. Fortunately, the Dell Tech I got at Dell Support was able to walk me through getting Windows back up, but the only way I can now access Mint 17.1 is with the boot disk, but there is no set up options as it is already set up, even though incorrectly for a dual boot.
How do I wipe out Linux without losing Windows 8.1 as well so I can re install Linux and this time make the correct selection for a dual boot?
Anyone willing to respond please do so small and slow so I can follow.
TIA.
BTW, I have tried installing Zorin OS 9 Ultimate on my XP machine via DVD and USB, but I can't get past the f1/f2 loop, even though I have reconfigured my boot sequence according to the drive I'm installing from. Zorin support has been MIA on this. Anyone having a similar problem?
Cheers
Hi Guys, I installed a dual boot config. on a 160 gb hdd. The first choice in grub menu is Linux Lite (latest distro) and the second boot choice is Mint 17.1 Rebecca. I'm encountering a situation that when I boot into LL the system boots OK. Then when I try a restart and boot into Mint it seems to be doing OK until the end of the boot process at which time the screen flashes the Mint logo and then goes dark-then flashes then goes dark every second or so-endlessly. After a while I'm sometimes able to get Mint to finish booting by hitting the esc key. Any ideas how to make this screen flashing situation stop and do a normal boot?
Update: Solved the problem by changing the resolution settings to coincide with those of LL....flashing stopped!
LL and Mint IMHO are two of the best distros for a Newbie to "get their feet wet." - I know, I am that Newbie.
I am trying to boot Linux Mint from an 8gb Sandisk USB. I changed my boot settings and it boots into what I believe is called grub? I am given two options, Boot Linux Mint, Boot Linux Mint (compatibility mode). When I select either of them all I get is a black screen. I've tried many things to get around this, messing with my graphics card settings (within grub), different USB's (another 8gb and a 32gb), I tried Ubuntu and that just doesn't boot at all I go straight back to my UEFI settings. I'm very new to Linux and I don't just want to hop in, I just want to boot from my USB whenever I want to play around with it. Thank You
Note: I'm running windows 8.1 currently on a ASUS N550JV laptop. I've been using the UUI from Pen Drive Linux.