How can I safely resize a root filesystem on Linux without rebooting?

[EricaDalton]

Hi everyone,
I’m running a Red Hat Enterprise Linux server and need to expand the root (/) filesystem because the system partition is getting full. I’ll be moving from an older, smaller LVM volume to a larger one. What’s the safest step-by-step process to resize the root filesystem without rebooting, including backing up, adjusting LVM, expanding the filesystem, and verifying everything works? Thanks in advance!

[carlos_arias]

Hey Erica, have a look at this short post. It should be pretty straighforward. 

https://www.redhat.com/en/blog/resize-lvm-simple

Remember to first do a backup of all important data, just in case something goes wrong!

[Chetan_Tiwary_]

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