Ec2 on Pavan Yarahttps://pavanyara.com/tags/ec2/Recent content in Ec2 on Pavan YaraHugo -- gohugo.ioen-USpavan.yara@gmail.com (Pavan Yara)pavan.yara@gmail.com (Pavan Yara)Pavan YaraWed, 18 Dec 2019 10:37:41 +0530Some AWS EC2 Tipshttps://pavanyara.com/blog/ec2-tips-1/Wed, 18 Dec 2019 10:37:41 +0530pavan.yara@gmail.com (Pavan Yara)https://pavanyara.com/blog/ec2-tips-1/<ul> <li><strong>Choosing right instance size</strong></li> </ul> <p><img src="https://pavanyara.com/img/ec2.png" alt="Choosing Right Ec2 instance size"></p> <ul> <li><strong>Why is my Linux instance not booting after I changed its type to C5 or M5?</strong></li> </ul> <p>See <a href="https://aws.amazon.com/premiumsupport/knowledge-center/boot-error-linux-m5-c5/">https://aws.amazon.com/premiumsupport/knowledge-center/boot-error-linux-m5-c5/</a></p> <ul> <li><strong>Make sure enaSupport instance attribute is enabled</strong></li> </ul> <blockquote> <p>aws ec2 describe-instances &ndash;instance-ids instance_id &ndash;query &ldquo;Reservations[].Instances[].EnaSupport“</p> </blockquote> <ul> <li><strong>Make sure both ENA and NVMe modules are installed</strong></li> </ul> <blockquote> <p>modinfo ena</p> </blockquote> <blockquote> <p>lsinitrd /boot/initramfs-$(uname -r).img|grep nvme</p> </blockquote> <ul> <li><strong>Mount EBS volumes using UUID/Label instead of device name</strong></li> </ul> <blockquote> <p>/dev/sda1 -&gt; UUID=&ldquo;ca774df7-756d-4261-a3f1-76038323e572&rdquo;</p> </blockquote>
  • Choosing right instance size

    • Choosing Right Ec2 instance size

    • Why is my Linux instance not booting after I changed its type to C5 or M5?

    See https://aws.amazon.com/premiumsupport/knowledge-center/boot-error-linux-m5-c5/

    • Make sure enaSupport instance attribute is enabled

    aws ec2 describe-instances –instance-ids instance_id –query “Reservations[].Instances[].EnaSupport“

    • Make sure both ENA and NVMe modules are installed

    modinfo ena

    lsinitrd /boot/initramfs-$(uname -r).img|grep nvme

    • Mount EBS volumes using UUID/Label instead of device name

    /dev/sda1 -> UUID=“ca774df7-756d-4261-a3f1-76038323e572”

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