# Snap install core fail
**URL:** https://community.letsencrypt.org/t/snap-install-core-fail/219550
**Category:** Help
**Created:** [June 5, 2024, 11:12am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550 "2024-06-05T11:12:27Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@18227346275](https://community.letsencrypt.org/u/18227346275)
#### Post date: [June 5, 2024, 11:12am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/1 "2024-06-05T11:12:27Z")
[root@slave02 /]# snap install core
error: system does not fully support snapd: cannot read the value of fs.may\_detach\_mounts kernel
parameter: open /proc/sys/fs/may\_detach\_mounts: no such file or directory
The above is my error message。My Linux version is CentOS Linux release 7.3.1611 (Core) ，Help me, Thanks!
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### Author:  [@18227346275](https://community.letsencrypt.org/u/18227346275)
#### Post date: [June 5, 2024, 11:31am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/2 "2024-06-05T11:31:02Z")
[root@slave02 /]# cat /etc/os-release
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/](https://www.centos.org/)"
BUG\_REPORT\_URL="[https://bugs.centos.org/](https://bugs.centos.org/)"
CENTOS\_MANTISBT\_PROJECT="CentOS-7"
CENTOS\_MANTISBT\_PROJECT\_VERSION="7"
REDHAT\_SUPPORT\_PRODUCT="centos"
REDHAT\_SUPPORT\_PRODUCT\_VERSION="7"
[root@slave02 /]# snap -version
error: unknown flag `v'
[root@slave02 /]# snap --version
snap 2.63-0.el7
snapd 2.63-0.el7
series 16
centos 7
kernel 3.10.0-514.el7.x86\_64
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### Author:  [@bruncsak](https://community.letsencrypt.org/u/bruncsak)
#### Post date: [June 5, 2024, 12:31pm UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/3 "2024-06-05T12:31:55Z")
Hello @18227346275 ,
That isn't the appropriate forum for questions related to `snap` installation, but I can still tell you that the CentOS version of 7.3.1611 is quiet old. You should upgrade it.
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### Author:  [@petercooperjr](https://community.letsencrypt.org/u/petercooperjr)
#### Post date: [June 5, 2024, 12:36pm UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/4 "2024-06-05T12:36:25Z")
Yeah, for an OS that old it might work better to use [the pip installation](https://certbot.eff.org/instructions?ws=apache&os=pip). Or, use a different client with minimal dependencies that you can just copy onto the server and run, like [lego](https://go-acme.github.io/lego/) (just go to the [release page](https://github.com/go-acme/lego/releases) and download `lego_v4.17.3_linux_amd64.tar.gz`), or maybe one of the [shell-script based clients](https://letsencrypt.org/docs/client-options/#clients-bash).
Though if your OS isn't getting security updates, then adding a certificate won't magically make it "secure".
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### Author:  [@linkp](https://community.letsencrypt.org/u/linkp)
#### Post date: [June 5, 2024, 4:04pm UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/5 "2024-06-05T16:04:22Z")
> [@petercooperjr](#):
>
> security updates
CentOS 7 receives them for 3 more weeks and 4 days. It may indeed be time to find a replacement OS.
> **[CentOS](https://endoflife.date/centos)**
>
> Check end-of-life, release policy and support schedule for CentOS.
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### Author:  [@18227346275](https://community.letsencrypt.org/u/18227346275)
#### Post date: [June 7, 2024, 1:38am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/7 "2024-06-07T01:38:39Z")
Thank you ,But my system is centos 7 can I also install with pip
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### Author:  [@petercooperjr](https://community.letsencrypt.org/u/petercooperjr)
#### Post date: [June 7, 2024, 1:50am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/8 "2024-06-07T01:50:54Z")
I'm not sure; it's been a long time since I've used a CentOS/RHEL 7 system, and I haven't tried installing pip or certbot on it. Like I said, with something that old you're probably best off using lego or acme.sh (at least until you can move to an up-to-date server).
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### Author:  [@18227346275](https://community.letsencrypt.org/u/18227346275)
#### Post date: [June 7, 2024, 1:56am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/9 "2024-06-07T01:56:20Z")
> [@petercooperjr](#):
>
> acme.sh
thank you ,I'll try acme.sh
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### Author:  [@system](https://community.letsencrypt.org/u/system)
#### Post date: [July 12, 2024, 11:56am UTC](https://community.letsencrypt.org/t/snap-install-core-fail/219550/11 "2024-07-12T11:56:15Z")
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