Linux and open-source solutions.
Sort “find” results by date:
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find . -type f -printf "%T@\t%Tc %6k KiB %p\n" | sort -n | cut -f 2- |
Find files newer then a specific file:
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find . -type f -newer somefile.txt |
And combined:
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find . -type f -newer somefile.txt -printf "%T@\t%Tc %6k KiB %p\n" | sort -n | cut -f 2- |
If you try to mount a cloned disk then you may get an error about duplicate UUID values. You can override with the “nouuid” option:
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mount -o nouuid /dev/xvdg1 /mnt |
If the disk is using LVM then additional steps will be required:
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vgimportclone -n orignalvgname_clone /dev/sdx [/dev/sdy....] vgchange -ay orignalvgname_clone |
Now you can list the partitions with lsblk and mount the desired logical volume with the “nouuid” option.
On CentOS 7, getting 404 error from yum when trying to update.
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http://mirror.centos.org/centos/7/virt/x86_64/xen-46/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found |
The error is related to Xen-46 which has been removed. The fix is to remove the repo and add the new Xen-48 repo:
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yum remove centos-release-xen yum install centos-release-xen-48 |
Here’s a good set of instructions for upgrading MySQL from 5.1 to 5.5 on older CentOS 6.9 servers:
The classic “fdisk” utility can’t create partitions larger then 2TB. The “parted” utility can be used instead as follows:
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[root@acme1 centos]# parted /dev/xvdj GNU Parted 3.1 Using /dev/xvdj Welcome to GNU Parted! Type 'help' to view a list of commands. (parted) mklabel gpt (parted) unit TB (parted) mkpart primary 0 16.0TB (parted) print Model: Xen Virtual Block Device (xvd) Disk /dev/xvdj: 17.6TB Sector size (logical/physical): 512B/512B Partition Table: gpt Disk Flags: Number Start End Size File system Name Flags 1 0.00TB 16.0TB 16.0TB primary (parted) quit Information: You may need to update /etc/fstab. [root@acme1 ~]$ |
