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-rw-r--r--doc/guix.texi37
1 files changed, 33 insertions, 4 deletions
diff --git a/doc/guix.texi b/doc/guix.texi
index fb6f897bb2..2b05a75be4 100644
--- a/doc/guix.texi
+++ b/doc/guix.texi
@@ -2826,10 +2826,11 @@ only a root account would look like this:
;; Assuming /dev/sdX is the target hard disk, and /dev/sdX1 the
;; target root file system.
(bootloader (grub-configuration (device "/dev/sdX")))
- (file-systems (list (file-system
+ (file-systems (cons (file-system
(device "/dev/sdX1")
(mount-point "/")
- (type "ext4")))))
+ (type "ext4"))
+ %base-file-systems)))
@end example
@noindent
@@ -2925,10 +2926,11 @@ kernel, initial RAM disk, and boot loader looks like this:
(locale "fr_FR.UTF-8")
(bootloader (grub-configuration
(device "/dev/sda")))
- (file-systems (list (file-system
+ (file-systems (cons (file-system
(device "/dev/sda1") ; or partition label
(mount-point "/")
- (type "ext3"))))
+ (type "ext3"))
+ %base-file-systems))
(users (list (user-account
(name "alice")
(password "")
@@ -3055,6 +3057,32 @@ errors before being mounted.
@end table
@end deftp
+The @code{(gnu system file-systems)} exports the following useful
+variables.
+
+@defvr {Scheme Variable} %base-file-systems
+These are essential file systems that are required on normal systems,
+such as @var{%devtmpfs-file-system} (see below.) Operating system
+declarations should always contain at least these.
+@end defvr
+
+@defvr {Scheme Variable} %devtmpfs-file-system
+The @code{devtmpfs} file system to be mounted on @file{/dev}. This is a
+requirement for udev (@pxref{Base Services, @code{udev-service}}).
+@end defvr
+
+@defvr {Scheme Variable} %binary-format-file-system
+The @code{binfmt_misc} file system, which allows handling of arbitrary
+executable file types to be delegated to user space. This requires the
+@code{binfmt.ko} kernel module to be loaded.
+@end defvr
+
+@defvr {Scheme Variable} %fuse-control-file-system
+The @code{fusectl} file system, which allows unprivileged users to mount
+and unmount user-space FUSE file systems. This requires the
+@code{fuse.ko} kernel module to be loaded.
+@end defvr
+
@node User Accounts
@subsection User Accounts
@@ -3245,6 +3273,7 @@ passed to @command{guix-daemon}.
Run @var{udev}, which populates the @file{/dev} directory dynamically.
@end deffn
+
@node Networking Services
@subsubsection Networking Services