CentOS is a Linux distribution standing for "Community ENTerprise Operating System" and is a rebuild of "Red Hat Enterprise Linux" (RHEL), belonging to the same company that distributes RHEL (Red Hat, Inc.). The "CentOS7" tag refers to versions 7.x-xxxx of CentOS, working only on 64-bit hardware. Maintenance updates for CentOS/RHEL 7 will stop on June 30, 2024, with full updates ceasing in winter of 2019.
Questions tagged [centos7]
2967 questions
30
votes
4 answers
Could not resolve host: mirrorlist.centos.org Centos 7
I have a fresh install of latest centos 7
[root@localhost ~]# cat /etc/centos-release
CentOS Linux release 7.4.1708 (Core)
[root@localhost ~]#
I wanted to install something and wget was not installed so when I tried to install wget I saw tha yum…
Albano Albanese
- 403
- 1
- 4
- 6
12
votes
4 answers
How to move disk space from centos-home to centos-root
I have a VM with 1 280GB disk. For some reason my layout is:
$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/centos-root 50G 21G 30G 41% /
devtmpfs 5.8G 0 5.8G 0% /dev
tmpfs …
GodAtum
- 319
5
votes
1 answer
repository for python3-devel on CentOS 7?
What repo is ok to use to install python3-devel on CentOS 7 ?
I seem to find only Fedora and OpenSuse versions.
yum install python3-devel
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.coreix.net
* epel:…
Jub
- 59
4
votes
3 answers
How to enable dst on timedatectl centos
I was wondering how to Enable Dst in centos7 timedatectl?
Currently I get:
[root@HP-Test ~]# timedatectl
Local time: Fri 2017-09-22 00:07:01 +0330
Universal time: Thu 2017-09-21 20:37:01 UTC
RTC time: Thu 2017-09-21 20:37:01
Time zone:…
senaps
- 143
4
votes
2 answers
What is the meaning of Ttl in nload output?
Whats the meaning of Ttl in nload output? Whats the period of calculation?
# Curr: 151.28 MBit/s
# Avg: 161.08 MBit/s
# Min: 144.97 MBit/s
# Max: 192.01 MBit/s
# Ttl: 126055.90 GByte
Mohammad Ali Akbari
- 1,793
4
votes
1 answer
no python38 pkg found for centos 7
I have CentOS 7,
Is there any option how to install python 3.8 on CentOS 7 ?
Looks that no pkg found in all repos.
So only option is to compile from source ?
Why is not supported in EPEL... ?
yum install python38
Loaded plugins:…
andrew
- 231
3
votes
2 answers
CentOS 7 + bcache
bcache was rolled into the 3.10 mainline kernel. I've just installed CentOS 7 with 3.10.0-123.4.4.el7.x86_64. However, after creating the cache devices I realised they were't attached. Turns out /sys/fs/bcache doesn't exist - ie it's not enabled in…
Fizzadar
- 133
2
votes
1 answer
How to disable numa in CentOS 7?
I append "numa=off" to the end of the lines begin with "linux16 /vmlinuz-3.10.0-327.28.3.el7.x86_64" in /etc/grub2.cfg (like modify /etc/grub.conf in CentOS 6). but after reboot, it takes no effect.
Then I tried to google it but find nothing…
kingsxw
- 21
2
votes
2 answers
not syncing: VFS: Unable to mount root fs on unknown—block(0,0)
My VPS machine refuses to boot. There is an short error according to KVM console:
Kernel panic — not syncing: VFS: Unable to mount root fs on unknown—block(0,0)
Pid: 1, comm: swapper Not tainted 2.6.32-431.11.2.el6.x86_64 #1
I can boot only with…
Damian Bartelmus
- 101
1
vote
1 answer
CentOS 7 TeamViewer RPM Install Failes on QT5 WebKit
Installing teamviewer-host.x86_64.rpm on CentOS Linux release 7.5.1804 yum produced the following errors:
--> Finished Dependency Resolution
Error: Package: qt5-qtwebkit-5.6.2-1.el7.x86_64 (epel)
Requires: qt5-qtbase(x86-64) = 5.6.2
Installing:…
jerryrig
- 141
1
vote
1 answer
How to disable screen automatic off in CentOS 7 when at terminal (no xde running)
When I start the computer, I'm logging in directly at the username: prompt. I am not launching any XDE.
How can I either completely disable the screen from shutting off, or increase the timeout to a sufficiently long time?
The only instructions I…
Dshiz
- 131
1
vote
1 answer
Cant connect to Centos7 server with working internet - Cant ping, ssh, etc
Current Setup
I am working on a fresh install of centos 7 from a minimal iso file that was installed through a bootable usb.
The computer is an old apple machine that has run centos 7 before without problems.
The machine has 1 account, named…
1
vote
0 answers
Centos 2 interfaces routing
I have two remote ESXi server in different datacenter. On both I installed 2 VM pfsense with a site2site VPN with OpenVPN to connect the 2 subnet 192.168.1.0/24 and 192.168.2.0/24 over internet.
I have a lot of VM on these two ESXi connected each…
iltizio
- 11
1
vote
1 answer
CentOS - how do I check if "Development Tools" is installed?
I installed "Development Tools" with yum (`yum group install "Development Tools") and wanted to check it's installed. However, if I re-run the group install command I get:
Maybe run: yum groups mark install (see man yum)
No packages in any requested…
Snowcrash
- 1,157
1
vote
1 answer
Centos 7 build 1511 is missing firewalld?
I maintain some scripts to set up servers and I have noticed setting up new machines from 1503 to 1511 that with my particular kickstart configuration that the firewall behavior is quite different. Note: my ks.cfg has had NO firewall statement until…
Steven Lu
- 268