38 lines
1.7 KiB
Diff
38 lines
1.7 KiB
Diff
From 1b7014dfc1584d1f3b10eb91c4f22e0deaca999d Mon Sep 17 00:00:00 2001
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From: Lauri Tirkkonen <lotheac@iki.fi>
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Date: Tue, 24 Oct 2017 20:40:50 +0300
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Subject: [PATCH] nspawn: EROFS for chowning mount points is not fatal (#7122)
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This fixes --read-only with --private-users. mkdir_userns_p may return
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-EROFS if either mkdir or lchown fails; lchown failing is fine as the
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mount point will just be overmounted, and if mkdir fails then the
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following mount() will also fail (with ENOENT).
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(cherry picked from commit 4f13e534282414b5e58ef31a26cc5c3f06f8cb18)
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---
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src/nspawn/nspawn-mount.c | 8 ++++++--
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1 file changed, 6 insertions(+), 2 deletions(-)
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diff --git a/src/nspawn/nspawn-mount.c b/src/nspawn/nspawn-mount.c
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index 531f29cb7b..9b7ceb6bdc 100644
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--- a/src/nspawn/nspawn-mount.c
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+++ b/src/nspawn/nspawn-mount.c
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@@ -598,11 +598,15 @@ int mount_all(const char *dest,
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r = mkdir_userns_p(dest, where, 0755, mount_settings, uid_shift);
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if (r < 0 && r != -EEXIST) {
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- if (fatal)
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+ if (fatal && r != -EROFS)
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return log_error_errno(r, "Failed to create directory %s: %m", where);
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log_debug_errno(r, "Failed to create directory %s: %m", where);
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- continue;
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+ /* If we failed mkdir() or chown() due to the root
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+ * directory being read only, attempt to mount this fs
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+ * anyway and let mount_verbose log any errors */
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+ if (r != -EROFS)
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+ continue;
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}
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o = mount_table[k].options;
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