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| author | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2020-02-11 12:57:29 -0500 |
|---|---|---|
| committer | Maxim Cournoyer <maxim.cournoyer@gmail.com> | 2020-03-02 23:24:47 -0500 |
| commit | cc9b889e8f285719645b5a86f2583d7f1b2aef01 (patch) | |
| tree | 54b09e6765273df2271b704096421202f6428cfa /gnu | |
| parent | 754c12041deec4f797504854b565add029ed3ca5 (diff) | |
linux-boot: Ensure volatile root is mounted read-only.
* gnu/build/linux-boot.scm (mount-root-file-system): Ensure MS_RDONLY is
present among the root file system flags when VOLATILE-ROOT? is #t.
Diffstat (limited to 'gnu')
| -rw-r--r-- | gnu/build/linux-boot.scm | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/gnu/build/linux-boot.scm b/gnu/build/linux-boot.scm index 3d40a7d05d..4fb711b8f2 100644 --- a/gnu/build/linux-boot.scm +++ b/gnu/build/linux-boot.scm @@ -362,12 +362,12 @@ the last argument of `mknod'." "Mount the root file system of type TYPE at device ROOT. If VOLATILE-ROOT? is true, mount ROOT read-only and make it an overlay with a writable tmpfs using the kernel built-in overlayfs. FLAGS and OPTIONS indicates the options to use -to mount ROOT." +to mount ROOT, and behave the same as for the `mount' procedure." (if volatile-root? (begin (mkdir-p "/real-root") - (mount root "/real-root" type MS_RDONLY options) + (mount root "/real-root" type (logior MS_RDONLY flags) options) (mkdir-p "/rw-root") (mount "none" "/rw-root" "tmpfs") |