/dev/nvme1n1p1
Couldn't find valid filesystem superblock.
Changing the read of the superblock to Direct I/O solves the issue.
[Testcase]
Start an c5.large instance on AWS, and attach a 60gb gp3 volume for
use as a scratch disk.
Run the following script, courtesy of Krister Johansen
.
[Testcase]
Start an c5.large instance on AWS, and attach a 60gb gp3 volume for
use as a scratch disk.
Run the following script, courtesy of Krister Johansen and his team:
#!/usr/bin/bash
set -euxo pipefail
while true
do
parted /dev/nvme1n1 mklabel gpt mkpart
.
[Testcase]
Start an c5.large instance on AWS, and attach a 60gb gp3 volume for
use as a scratch disk.
Run the following script, courtesy of Krister Johansen and his team:
#!/usr/bin/bash
set -euxo pipefail
while true
do
parted /dev/nvme1n1 mklabel gpt mkpart
valid filesystem superblock.
Changing the read of the superblock to Direct I/O solves the issue.
[Testcase]
Start an c5.large instance on AWS, and attach a 60gb gp3 volume for
use as a scratch disk.
Run the following script, courtesy of Krister Johansen and his team:
#!/usr/bin
/dev/nvme1n1p1
Couldn't find valid filesystem superblock.
Changing the read of the superblock to Direct I/O solves the issue.
[Testcase]
Start an c5.large instance on AWS, and attach a 60gb gp3 volume for
use as a scratch disk.
Run the following script, courtesy of Krister Johansen
, courtesy of Krister Johansen and his team:
#!/usr/bin/bash
set -euxo pipefail
while true
do
parted /dev/nvme1n1 mklabel gpt mkpart primary 2048s 2099200s
sleep .5
mkfs.ext4 /dev/nvme1n1p1
mount -t ext4 /dev/nvme1n1p1 /mnt
Thanks for all the responses. I'm not sure how quickly I'll be able to
get to this either, so I'm hesitant to commit to fixing myself. That
said, if I can get time to send patches before your team gets to fixing
it, I'll do my best.
To answer the question about how frequently we see this: it
Public bug reported:
Hi,
We run ext4 on EBS volumes on EC2. During provisioning, cloud-init will
occasionally report that resize2fs has failed due to a superblock checksum
mismatch. We debugged this internally, and were able to come up with the
following reproducer:
#!/usr/bin/bash
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