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-rw-r--r--gnu/services/dmd.scm2
-rw-r--r--gnu/services/xorg.scm2
-rw-r--r--gnu/system.scm56
-rw-r--r--gnu/system/vm.scm59
-rw-r--r--guix/build/activation.scm33
-rw-r--r--guix/build/install.scm50
-rw-r--r--guix/build/vm.scm3
7 files changed, 118 insertions, 87 deletions
diff --git a/gnu/services/dmd.scm b/gnu/services/dmd.scm
index 0d17285890..982c196fe4 100644
--- a/gnu/services/dmd.scm
+++ b/gnu/services/dmd.scm
@@ -64,7 +64,7 @@
services))
;; guix-daemon 0.6 aborts if 'PATH' is undefined, so work around it.
- (setenv "PATH" "/run/current-system/bin")
+ (setenv "PATH" "/run/current-system/profile/bin")
(format #t "starting services...~%")
(for-each start '#$(append-map service-provision services))))
diff --git a/gnu/services/xorg.scm b/gnu/services/xorg.scm
index 1988cfa6a0..7215297f69 100644
--- a/gnu/services/xorg.scm
+++ b/gnu/services/xorg.scm
@@ -139,7 +139,7 @@ When AUTO-LOGIN? is true, log in automatically as DEFAULT-USER."
(mlet %store-monad ((startx (or startx (xorg-start-command)))
(xinitrc (xinitrc)))
(text-file* "slim.cfg" "
-default_path /run/current-system/bin
+default_path /run/current-system/profile/bin
default_xserver " startx "
xserver_arguments :0 vt7
xauth_path " xauth "/bin/xauth
diff --git a/gnu/system.scm b/gnu/system.scm
index 9ce94d0230..ec3e2fcd6c 100644
--- a/gnu/system.scm
+++ b/gnu/system.scm
@@ -55,6 +55,7 @@
operating-system-derivation
operating-system-profile
+ operating-system-grub.cfg
<file-system>
file-system
@@ -263,7 +264,7 @@ explicitly appear in OS."
(locale "C") (timezone "Europe/Paris")
(skeletons '())
(pam-services '())
- (profile "/var/run/current-system/profile")
+ (profile "/run/current-system/profile")
(sudoers ""))
"Return a derivation that builds the static part of the /etc directory."
(mlet* %store-monad
@@ -273,8 +274,8 @@ explicitly appear in OS."
(shells (text-file "shells" ; used by xterm and others
"\
/bin/sh
-/run/current-system/bin/sh
-/run/current-system/bin/bash\n"))
+/run/current-system/profile/bin/sh
+/run/current-system/profile/bin/bash\n"))
(issue (text-file "issue" "
This is an alpha preview of the GNU system. Welcome.
@@ -293,8 +294,8 @@ export LC_ALL=\"" locale "\"
export TZ=\"" timezone "\"
export TZDIR=\"" tzdata "/share/zoneinfo\"
-export PATH=$HOME/.guix-profile/bin:" profile "/bin:" profile "/sbin
-export PATH=/run/setuid-programs:$PATH
+export PATH=/run/setuid-programs:/run/current-system/profile/sbin
+export PATH=$HOME/.guix-profile/bin:/run/current-system/profile/bin:$PATH
export CPATH=$HOME/.guix-profile/include:" profile "/include
export LIBRARY_PATH=$HOME/.guix-profile/lib:" profile "/lib
alias ls='ls -p --color'
@@ -402,7 +403,8 @@ alias ll='ls -l'
we're running in the final root."
(define %modules
'((guix build activation)
- (guix build utils)))
+ (guix build utils)
+ (guix build linux-initrd)))
(mlet* %store-monad ((services (operating-system-services os))
(etc (operating-system-etc-directory os))
@@ -446,6 +448,9 @@ we're running in the final root."
;; Activate setuid programs.
(activate-setuid-programs (list #$@setuid-progs))
+ ;; Set up /run/current-system.
+ (activate-current-system #:boot? #t)
+
;; Close any remaining open file descriptors to be on the
;; safe side. This must be the very last thing we do,
;; because Guile has internal FDs such as 'sleep_pipe'
@@ -466,8 +471,8 @@ we're running in the final root."
(_ #f))
(operating-system-file-systems os)))
-(define (operating-system-derivation os)
- "Return a derivation that builds OS."
+(define (operating-system-initrd-file os)
+ "Return a gexp denoting the initrd file of OS."
(define boot-file-systems
(filter (match-lambda
(($ <file-system> device "/")
@@ -476,15 +481,16 @@ we're running in the final root."
boot?))
(operating-system-file-systems os)))
+ (mlet %store-monad
+ ((initrd ((operating-system-initrd os) boot-file-systems)))
+ (return #~(string-append #$initrd "/initrd"))))
+
+(define (operating-system-grub.cfg os)
+ "Return the GRUB configuration file for OS."
(mlet* %store-monad
- ((profile (operating-system-profile os))
- (etc (operating-system-etc-directory os))
- (services (operating-system-services os))
- (boot (operating-system-boot-script os))
- (kernel -> (operating-system-kernel os))
- (initrd ((operating-system-initrd os) boot-file-systems))
- (initrd-file -> #~(string-append #$initrd "/initrd"))
+ ((system (operating-system-derivation os))
(root-fs -> (operating-system-root-file-system os))
+ (kernel -> (operating-system-kernel os))
(entries -> (list (menu-entry
(label (string-append
"GNU system with "
@@ -494,15 +500,25 @@ we're running in the final root."
(linux-arguments
(list (string-append "--root="
(file-system-device root-fs))
- #~(string-append "--load=" #$boot)))
- (initrd initrd-file))))
- (grub.cfg (grub-configuration-file entries)))
+ #~(string-append "--system=" #$system)
+ #~(string-append "--load=" #$system
+ "/boot")))
+ (initrd #~(string-append #$system "/initrd"))))))
+ (grub-configuration-file entries)))
+
+(define (operating-system-derivation os)
+ "Return a derivation that builds OS."
+ (mlet* %store-monad
+ ((profile (operating-system-profile os))
+ (etc (operating-system-etc-directory os))
+ (boot (operating-system-boot-script os))
+ (kernel -> (operating-system-kernel os))
+ (initrd (operating-system-initrd-file os)))
(file-union "system"
`(("boot" ,#~#$boot)
("kernel" ,#~#$kernel)
- ("initrd" ,initrd-file)
+ ("initrd" ,initrd)
("profile" ,#~#$profile)
- ("grub.cfg" ,#~#$grub.cfg)
("etc" ,#~#$etc)))))
;;; system.scm ends here
diff --git a/gnu/system/vm.scm b/gnu/system/vm.scm
index 58e5416b3e..4bf0e06081 100644
--- a/gnu/system/vm.scm
+++ b/gnu/system/vm.scm
@@ -192,7 +192,6 @@ made available under the /xchg CIFS share."
(file-system-type "ext4")
grub-configuration
(register-closures? #t)
- (populate #f)
(inputs '())
copy-inputs?)
"Return a bootable, stand-alone QEMU image, with a root partition of type
@@ -203,12 +202,7 @@ file (GRUB-CONFIGURATION must be the name of a file in the VM.)
INPUTS is a list of inputs (as for packages). When COPY-INPUTS? is true, copy
all of INPUTS into the image being built. When REGISTER-CLOSURES? is true,
register INPUTS in the store database of the image so that Guix can be used in
-the image.
-
-POPULATE is a list of directives stating directories or symlinks to be created
-in the disk image partition. It is evaluated once the image has been
-populated with INPUTS-TO-COPY. It can be used to provide additional files,
-such as /etc files."
+the image."
(mlet %store-monad
((graph (sequence %store-monad (map input->name+output inputs))))
(expression->derivation-in-linux-vm
@@ -241,8 +235,7 @@ such as /etc files."
#:copy-closures? #$copy-inputs?
#:register-closures? #$register-closures?
#:disk-image-size #$disk-image-size
- #:file-system-type #$file-system-type
- #:directives '#$populate)
+ #:file-system-type #$file-system-type)
(reboot))))
#:system system
#:make-disk-image? #t
@@ -254,39 +247,6 @@ such as /etc files."
;;; Stand-alone VM image.
;;;
-(define (operating-system-build-gid os)
- "Return as a monadic value the group id for build users of OS, or #f."
- (mlet %store-monad ((services (operating-system-services os)))
- (return (any (lambda (service)
- (and (equal? '(guix-daemon)
- (service-provision service))
- (match (service-user-groups service)
- ((group)
- (user-group-id group)))))
- services))))
-
-(define (operating-system-default-contents os)
- "Return a list of directives suitable for 'system-qemu-image' describing the
-basic contents of the root file system of OS."
- (mlet* %store-monad ((os-drv (operating-system-derivation os))
- (build-gid (operating-system-build-gid os))
- (profile (operating-system-profile os)))
- (return #~((directory #$(%store-prefix) 0 #$(or build-gid 0))
- (directory "/etc")
- (directory "/var/log") ; for dmd
- (directory "/var/run/nscd")
- (directory "/var/guix/gcroots")
- ("/var/guix/gcroots/system" -> #$os-drv)
- (directory "/run")
- ("/run/current-system" -> #$profile)
- (directory "/bin")
- ("/bin/sh" -> "/run/current-system/bin/bash")
- (directory "/tmp")
- (directory "/var/guix/profiles/per-user/root" 0 0)
-
- (directory "/root" 0 0) ; an exception
- (directory "/home" 0 0)))))
-
(define* (system-qemu-image os
#:key
(file-system-type "ext4")
@@ -312,14 +272,12 @@ of the GNU system as described by OS."
file-systems-to-keep)))))
(mlet* %store-monad
((os-drv (operating-system-derivation os))
- (os-dir -> (derivation->output-path os-drv))
- (grub.cfg -> (string-append os-dir "/grub.cfg"))
- (populate (operating-system-default-contents os)))
+ (grub.cfg (operating-system-grub.cfg os)))
(qemu-image #:grub-configuration grub.cfg
- #:populate populate
#:disk-image-size disk-image-size
#:file-system-type file-system-type
- #:inputs `(("system" ,os-drv))
+ #:inputs `(("system" ,os-drv)
+ ("grub.cfg" ,grub.cfg))
#:copy-inputs? #t))))
(define (virtualized-operating-system os)
@@ -356,11 +314,8 @@ environment with the store shared with the host."
with the host."
(mlet* %store-monad
((os-drv (operating-system-derivation os))
- (os-dir -> (derivation->output-path os-drv))
- (grub.cfg -> (string-append os-dir "/grub.cfg"))
- (populate (operating-system-default-contents os)))
+ (grub.cfg (operating-system-grub.cfg os)))
(qemu-image #:grub-configuration grub.cfg
- #:populate populate
#:disk-image-size disk-image-size
#:inputs `(("system" ,os-drv))
@@ -390,7 +345,7 @@ exec " #$qemu "/bin/qemu-system-x86_64 -enable-kvm -no-reboot -net nic,model=vir
-kernel " #$(operating-system-kernel os) "/bzImage \
-initrd " #$os-drv "/initrd \
-append \"" #$(if graphic? "" "console=ttyS0 ")
- "--load=" #$os-drv "/boot --root=/dev/vda1\" \
+ "--system=" #$os-drv " --load=" #$os-drv "/boot --root=/dev/vda1\" \
-serial stdio \
-drive file=" #$image
",if=virtio,cache=writeback,werror=report,readonly\n")
diff --git a/guix/build/activation.scm b/guix/build/activation.scm
index 267c592b52..49f98c021d 100644
--- a/guix/build/activation.scm
+++ b/guix/build/activation.scm
@@ -18,13 +18,15 @@
(define-module (guix build activation)
#:use-module (guix build utils)
+ #:use-module (guix build linux-initrd)
#:use-module (ice-9 ftw)
#:use-module (ice-9 match)
#:use-module (srfi srfi-1)
#:use-module (srfi srfi-26)
#:export (activate-users+groups
activate-etc
- activate-setuid-programs))
+ activate-setuid-programs
+ activate-current-system))
;;; Commentary:
;;;
@@ -195,4 +197,33 @@ numeric gid or #f."
(for-each make-setuid-program programs))
+(define %booted-system
+ ;; The system we booted in (a symlink.)
+ "/run/booted-system")
+
+(define %current-system
+ ;; The system that is current (a symlink.) This is not necessarily the same
+ ;; as %BOOTED-SYSTEM, for instance because we can re-build a new system
+ ;; configuration and activate it, without rebooting.
+ "/run/current-system")
+
+(define (boot-time-system)
+ "Return the '--system' argument passed on the kernel command line."
+ (find-long-option "--system" (linux-command-line)))
+
+(define* (activate-current-system #:optional (system (boot-time-system))
+ #:key boot?)
+ "Atomically make SYSTEM the current system. When BOOT? is true, also make
+it the booted system."
+ (format #t "making '~a' the current system...~%" system)
+ (when boot?
+ (when (file-exists? %booted-system)
+ (delete-file %booted-system))
+ (symlink system %booted-system))
+
+ ;; Atomically make SYSTEM current.
+ (let ((new (string-append %current-system ".new")))
+ (symlink system new)
+ (rename-file new %current-system)))
+
;;; activation.scm ends here
diff --git a/guix/build/install.scm b/guix/build/install.scm
index 37153703e5..a0be6e9d39 100644
--- a/guix/build/install.scm
+++ b/guix/build/install.scm
@@ -19,9 +19,10 @@
(define-module (guix build install)
#:use-module (guix build utils)
#:use-module (guix build install)
+ #:use-module (srfi srfi-26)
#:use-module (ice-9 match)
#:export (install-grub
- evaluate-populate-directive
+ populate-root-file-system
reset-timestamps
register-closure))
@@ -46,15 +47,44 @@ MOUNT-POINT. Return #t on success."
(define (evaluate-populate-directive directive target)
"Evaluate DIRECTIVE, an sexp describing a file or directory to create under
directory TARGET."
- (match directive
- (('directory name)
- (mkdir-p (string-append target name)))
- (('directory name uid gid)
- (let ((dir (string-append target name)))
- (mkdir-p dir)
- (chown dir uid gid)))
- ((new '-> old)
- (symlink old (string-append target new)))))
+ (let loop ((directive directive))
+ (match directive
+ (('directory name)
+ (mkdir-p (string-append target name)))
+ (('directory name uid gid)
+ (let ((dir (string-append target name)))
+ (mkdir-p dir)
+ (chown dir uid gid)))
+ (('directory name uid gid mode)
+ (loop `(directory ,name ,uid ,gid))
+ (chmod (string-append target name) mode))
+ ((new '-> old)
+ (symlink old (string-append target new))))))
+
+(define (directives store)
+ "Return a list of directives to populate the root file system that will host
+STORE."
+ `((directory ,store 0 0)
+ (directory "/etc")
+ (directory "/var/log") ; for dmd
+ (directory "/var/run/nscd")
+ (directory "/var/guix/gcroots")
+ (directory "/run")
+ ("/var/guix/gcroots/booted-system" -> "/run/booted-system")
+ ("/var/guix/gcroots/current-system" -> "/run/current-system")
+ (directory "/bin")
+ ("/bin/sh" -> "/run/current-system/profile/bin/bash")
+ (directory "/tmp" 0 0 #o1777) ; sticky bit
+ (directory "/var/guix/profiles/per-user/root" 0 0)
+
+ (directory "/root" 0 0) ; an exception
+ (directory "/home" 0 0)))
+
+(define (populate-root-file-system target)
+ "Make the essential non-store files and directories on TARGET. This
+includes /etc, /var, /run, /bin/sh, etc."
+ (for-each (cut evaluate-populate-directive <> target)
+ (directives (%store-directory))))
(define (reset-timestamps directory)
"Reset the timestamps of all the files under DIRECTORY, so that they appear
diff --git a/guix/build/vm.scm b/guix/build/vm.scm
index 12f952bd11..b9bb66cdb7 100644
--- a/guix/build/vm.scm
+++ b/guix/build/vm.scm
@@ -206,8 +206,7 @@ further populate the partition."
;; Evaluate the POPULATE directives.
(display "populating...\n")
- (for-each (cut evaluate-populate-directive <> target-directory)
- directives)
+ (populate-root-file-system target-directory)
(unless (install-grub grub.cfg "/dev/sda" target-directory)
(error "failed to install GRUB"))