Closed TomSweeneyRedHat closed 6 years ago
buildah --storage-driver=devicemapper ...
Should fix his issue. There is a change I just got merged into containers/storage that was forcing overlay on CentOS and RHEL, which is causing these issues, I believe.
Thanks Dan. I found the issue that I was having. You need to update the kernel in order to get overlayfs to work. It requires version 4.0+ and CentOS 7 is at:
# uname -a
Linux localhost.localdomain 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
The latest kernel is:
# uname -a
Linux localhost.localdomain 4.12.4-1.el7.elrepo.x86_64 #1 SMP Thu Jul 27 20:03:28 EDT 2017 x86_64 x86_64 x86_64 GNU/Linux
To update the kernel (per https://www.ostechnix.com/install-linux-kernel-4-12-centos-ubuntu/):
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
yum install yum-plugin-fastestmirror
yum --enablerepo=elrepo-kernel install kernel-ml
Reboot and select the 4.* variant kernel on the console.
# buildah from centos
Getting image source signatures
Copying blob sha256:7b6bb4652a1be64d39920f7d8c12c5f0bd8abfc10820177109e73817357c07e3
67.22 MiB / 67.22 MiB [=======================================================]
Copying config sha256:36540f359ca3b021d4b6a37815e9177b6c2bb3817598979ea55aee7ecc5c2c1f
0 B / 1.79 KiB [--------------------------------------------------------------]
Writing manifest to image destination
Storing signatures
centos-working-container
# buildah containers
CONTAINER ID BUILDER IMAGE ID IMAGE NAME CONTAINER NAME
eab40069a941 * cd3de852a969 docker.io/library/centos:latest centos-working-container
# buildah images
IMAGE ID IMAGE NAME CREATED AT SIZE
cd3de852a969 docker.io/library/centos:latest Jul 5, 2017 21:04 183.6 MB
Right we need to start requiring 7.4 or later kernels for all of the tools rather then dealing with systems that do not support overlay file system.
I guess mentioning this in README.md
is good enough for closing this ticket, unless you have a better idea.
Closing, fixed with #372
Pinesh Shah Reports as a reply to the buildah blog:
In addition I tried myself and received a kernel age error. I suspect that Pinesh's issue is due to runc being older than buildah is expecting. I'm not as sure about the error that I received, it may be a configuration issue as I threw the vm together pretty quickly.
buildah from centos
ERRO[0000] kernel too old to provide multiple lowers feature for overlay: driver not supported kernel too old to provide multiple lowers feature for overlay: driver not supported
cat /etc/*release
CentOS Linux release 7.3.1611 (Core) NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/"
CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7"
CentOS Linux release 7.3.1611 (Core) CentOS Linux release 7.3.1611 (Core) [root@localhost buildah]# rpm -qa | grep runc runc-1.0.0-6.gite800860.el7.x86_64