[bug#44718] Fix dockerd requires file-system-/sys/fs/cgroup/blkio

[Oleg Pykhalov <go.wigust@gmail.com>]

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Hello,

According to Git bisect, the 977eb5d0 commit breaks docker-service-type
with the following error during “guix system build” or “guix system
reconfigure”:

    guix system: error: service 'dockerd' requires 'file-system-/sys/fs/cgroup/blkio', which is not provided by any service


The following patch fixes this.

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From dcc259c3a33a470eee761f4deadf9149f0a65c55 Mon Sep 17 00:00:00 2001
From: Oleg Pykhalov <go.wigust@gmail.com>
Date: Wed, 18 Nov 2020 08:57:05 +0300
Subject: [PATCH] Fix file-system->shepherd-service-name.

This commit follow 977eb5d023cfdf8e336f1896480eea9cef5c04e9, which breaks
docker-service-type with error:

guix system: error: service 'dockerd' requires
'file-system-/sys/fs/cgroup/blkio', which is not provided by any service

* gnu/services/base.scm (file-system->shepherd-service-name): Add '/' to
valid characters.
---
 gnu/services/base.scm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gnu/services/base.scm b/gnu/services/base.scm
index 712b3a018f..6fc966e268 100644
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -288,7 +288,7 @@ FILE-SYSTEM."
   (define valid-characters
     ;; Valid store characters; see 'checkStoreName' in the daemon.
     (string->char-set
-     "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+-._?="))
+     "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz+-._?=/"))
 
   (define mount-point
     (string-map (lambda (chr)
-- 
2.29.2


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Oleg.

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