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Posted inLinux & Windows

“username” is not in the sudoers file. This incident will be reported. Privilege escalation for new user in Linux

Before providing with you resolution of above error, remember this case is for providing sudo access to new user which…
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Posted by dev_ves February 10, 2022
Posted inLinux & Windows Tech Bites

(CentOS-8) Error: Failed to download metadata for repo ‘appstream’: Cannot prepare internal mirrorlist: No URLs in mirrorlist

While migrating my kubernetes cluster from Docker runtime engine to CRI-O, I faced error below, [root@cntmaster ~]# yum update CentOS…
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Posted by dev_ves February 7, 2022
Posted inLinux & Windows

Adding Virtual Disk in Linux using LVM Framework – Part 2

In Part 1, we have allocated free space of Virtual Disk 1, to existing volume group by creating new partition…
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Posted by dev_ves January 25, 2022
Posted inLinux & Windows

Adding Virtual Disk in Linux using LVM Framework – Part 1

LVM or Logical Volume Manager is a device mapper framework to organize and manage virtual/physical disks mounted on linux. We…
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Posted by dev_ves January 25, 2022
Posted inLinux & Windows

Dependency Failed for /var in RHEL/CentOS

In one of my blog, where we recovered linux system from emergency mode using xfs_repair utility expectations was full recovery…
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Posted by dev_ves January 23, 2022
Posted inLinux & Windows

Not able to mount sysroot- Recovery of RHEL/CentOS

Error after OS Reboot Many times, if linux partitions if not mounted properly or resized with correct steps (Refer my…
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Posted by dev_ves January 23, 2022

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