Suggested by Mark H. Weaver.
* gnu/system/shadow.scm (<user-group>)[system?]: New field.
(%base-groups): Introduce 'system-group' macro, and use it.
* gnu/system.scm (user-group->gexp): Pass the 'system?' field.
* guix/build/activation.scm (add-group): Add #:system? and honor it.
(activate-users+groups): Handle the 'system?' field.
* gnu/system/file-systems.scm (%tty-gid): Choose an ID below 1000.
* doc/guix.texi (User Accounts): Document the 'system?' field.
* guix/build/linux-initrd.scm (MS_NOSUID, MS_NODEV, MS_NOEXEC): New
variables.
(mount-flags->bit-mask): New procedure.
(mount-file-system)[flags->bit-mask]: Remove.
Use 'mount-flags->bit-mask' instead.
In /etc/mtab, use the empty string when OPTIONS is false.
* gnu/services/base.scm (file-system-service): Add #:flags parameter and
honor it.
* gnu/system.scm (other-file-system-services): Pass FLAGS to
'file-system-service'.
* guix/build/linux-initrd.scm (canonicalize-device-spec): When label
resolution fails, call 'error' instead of 'format' + 'start-repl'.
(boot-system): Wrap most of body in 'call-with-error-handling'.
Remove 'catch' around 'primitive-load' call.
Reported by David Thompson <dthompson2@worcester.edu>.
* guix/build/linux-initrd.scm (read-ext2-superblock): Add
'superblock-size' variable. Read with 'get-bytevector-n!' instead of
'getbytevector-n', and make sure we read exactly SUPERBLOCK-SIZE
bytes.
* guix/git-download.scm (<git-reference>)[recursive?]: New field.
(git-fetch): Add 'inputs' variable. Add it to the #:inputs argument
of 'build-expression->derivation'. Augment builder with call to
'set-path-environment-variable', and pass #:recursive? to
'git-fetch'.
* guix/build/git.scm (git-fetch): Add #:recursive? parameter. Pass
--recursive when RECURSIVE? is true, and delete all the '.git' files.
* gnu/system/shadow.scm (<user-account>)[system?]: New field.
* gnu/system.scm (user-account->gexp): Add it.
* guix/build/activation.scm (add-user): Add #:system? parameter and
honor it.
(activate-users+groups): Handle the 'system?' part of user tuples.
Pass it to 'add-user'. Don't create PROFILE-DIR when SYSTEM? is
true.
* gnu/services/dbus.scm (dbus-service): Add 'system?' field for
"messagebus" account.
* gnu/services/base.scm (guix-build-accounts): Likewise.
* gnu/services/avahi.scm (avahi-service): Likewise.
This is a followup to e2fcc23. The /etc/group file would be cleared
when booting.
* guix/build/activation.scm (activate-users+groups)[touch]: Rewrite so
it does not wipe out FILE's contents.
This partly reverts commit 185f669 ("services: Make sure the store's
group is the build group.")
* gnu/services/base.scm (guix-service)[activate]: Remove 'chown' call.
Add 'id' field to 'user-group' form.
* guix/build/install.scm (directives): Set the store's GID to 30000.
Before that the effect would be to re-create groups at each boot, and
thus remove any members of the groups.
* guix/build/activation.scm (activate-users+groups): Call 'add-group'
only when (getgrname name) fails.
* gnu/services/base.scm (guix-service)[activate]: New variable. Add
'chown' call for (%store-prefix). Set the 'activate' field to
ACTIVATE.
* guix/build/install.scm (directives): Add comment about STORE's group.
* gnu/system/file-systems.scm (<file-system>)[title]: New field.
* gnu/services/base.scm (file-system-service): Add #:title parameter.
In 'start' gexp, use 'canonicalize-device-spec' and honor TITLE.
* gnu/system.scm (other-file-system-services,
operating-system-root-file-system, operating-system-initrd-file):
Adjust accordingly.
* gnu/system/linux-initrd.scm (file-system->spec): Likewise.
* gnu/system/vm.scm (system-disk-image): Add 'title' field for the root
file system.
* guix/build/linux-initrd.scm (mount-file-system): Expect the second
element of SPEC to be the title.
(boot-system)[root-mount-point?, root-fs-type]: Likewise.
* gnu/services/dmd.scm (dmd-configuration-file): Select
'canonicalize-device-spec'.
* guix/build/linux-initrd.scm (canonicalize-device-spec): Add #:title
parameter. When resolving a label, wait a little and try several
times before bailing out.
* guix/build/linux-initrd.scm (make-disk-device-nodes): New procedure.
(make-essential-device-nodes): Use it. Make more devices nodes for
SCSI disks and CD-ROM devices.
* guix/build/vm.scm (format-partition): Add #:label parameter, and honor
it.
(initialize-hard-disk): Add #:file-system-label parameter, and pass it
to 'format-partition'.
* gnu/system/vm.scm (qemu-image): Add #:file-system-label parameter and
pass it to 'initialize-hard-disk'.
* gnu/system.scm (operating-system-activation-script): New procedure,
containing most of the former 'operating-system-boot-script'.
(operating-system-boot-script): Call it, and 'primitive-load' its
result.
* guix/build/activation.scm (%booted-system): Remove.
(activate-current-system): Remove #:boot? parameter and related code.
* guix/build/vm.scm (load-in-linux-vm): When MAKE-DISK-IMAGE?, use
'-drive ...,if=virtio' for better performance.
* gnu/system/vm.scm (qemu-image): Use /dev/vda instead of /dev/sda.
* guix/build/install.scm (install-grub): Call 'error' if 'system*'
returns non-zero.
* guix/build/vm.scm (initialize-partition-table): Make 'partition-size'
a positional parameter. Call 'error' when 'system*' returns
non-zero'.
(format-partition, initialize-root-partition): New procedures.
(initialize-hard-disk): Use them.
* guix/build/linux-initrd.scm (boot-system): Add pre-unwind handler in
'catch' form around 'primitive-load', and call 'format' and
'display-backtrace' from there.
* gnu/system.scm (etc-directory): Change default value of #:profile.
Change contents of SHELLS. Use /run/current-system/profile/{s,}bin in
BASHRC.
(operating-system-boot-script)[%modules]: Add (guix build
linux-initrd). Add call to 'activate-current-system' in gexp.
(operating-system-initrd-file, operating-system-grub.cfg): New
procedures.
(operating-system-derivation): Don't build grub.cfg here and remove it
from the file union.
* gnu/system/vm.scm (qemu-image): Remove #:populate.
(operating-system-build-gid, operating-system-default-contents):
Remove.
(system-qemu-image): Remove call to
'operating-system-default-contents'. Use 'operating-system-grub.cfg'
to get grub.cfg. Add GRUB.CFG to #:inputs.
(system-qemu-image/shared-store): Likewise, but don't add GRUB.CFG to
#:inputs.
(system-qemu-image/shared-store-script): Pass --system kernel option.
* guix/build/activation.scm (%booted-system, %current-system): New
variables.
(boot-time-system, activate-current-system): New procedures.
* guix/build/install.scm (evaluate-populate-directive): Add case
for ('directory name uid gid mode).
(directives, populate-root-file-system): New procedures.
* guix/build/vm.scm (initialize-hard-disk): Replace calls to
'evaluate-populate-directive' by a call to
'populate-root-file-system'.
* gnu/services/dmd.scm (dmd-configuration-file): Use
/run/current-system/profile/bin.
* gnu/services/xorg.scm (slim-service): Likewise.
Ludovic Courtès