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Month: March 2021

How to resolve error resize2fs: Operation not permitted While trying to add group – ext4_group_add: No reserved GDT blocks, can’t resize

The root cause of this error is that the pool of reserved GDT blocks is not available, or the filesystem does not support online resizing. Note that the Ext3 and Ext4 filesystem metadata layout is fixed. mkfs reserves space for future disk resizing, but that is only 1024x the filesystem size during initial disk creation …

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