CentOS

TervorH, yes I understand it's a rescue system and not meant to look pretty. I was just wondering if there was some way I could manipulate the screen dump. I actually use the rescue system to just mount the LiveOS image; so, I can do my own installation. Hence, why I wanted to change the look of the...

CentOS 7 DVD image, when I Rescue a CentOS Linux system (shown in the image), the following screen dump is pretty messy. Is there anyway I can display a progress bar instead?

[img]rescue_mode.jpg[/img]

Hi Everyone,

I have a question regarding hot swap on CenOS 6. I am currently running RAID 1, when I swap one of the hard drives with a new/blank drive; the system prompts a popup for root password. Is there anyway I can disable the root password requirement?

Thanks,

So, I am trying to compile the kernel with the RT patch; however, I am unsuccessful. I currently have vmlinuz-3.10.0-327.18.2.el7.x86_64 as the kernel to load, with initramfs-3.10.0-327.18.2.el7.x86_64.img. I downloaded the source code for kernel -3.10.0-327.18.2.el7.x86_64, and compiled. However, I...

Exactly what I needed, thank you!!!!

I have recreated the CentOS ISO image, and when I make with genisoiamge, I cannot boot up with a USB drive when create using dd command. I can boot up with the original ISO image on USB, without issues. Also, my recreated image works fine when burning to DVD. Here is the file output for the original...

Thanks for the info, doing some more investigation. Will update with my results.

Running RAID 1, with two hard drives. Anything I can change on the hard drive settings, mount settings? And, the same exact hardware has no issues with CentOS 6. Personalities : [raid1] md3 : active raid1 sdb3[1] sda3[0] 458527744 blocks super 1.2 [2/2] [UU] bitmap: 2/4 pages [8KB], 65536KB chunk md...

Hi aks,

So, I ran non-RAID CentOS 7; and the iowait issue does not exist. Now, I am lead to believe it could be something with mdadm. Is there some setting I can change through mdadm that could reduce iowait?

Hi aks, Thanks for the valuable info. Hardware is same, both CentOS 6 and 7 is being setup as ext4. I did investigate with iotop, and found some process that have different wait time between CentOS 6 and CentOS 7. As you stated, perhaps there is a system/kernel call from my process that is being han...