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* Add (guix build bournish) and use it in the initrd.Ludovic Courtès2016-02-08
| | | | | | | * guix/build/bournish.scm: New file. * Makefile.am (MODULES): Add it. * gnu/system/linux-initrd.scm (base-initrd): Add (guix build bournish) and use it.
* linux-initrd: Add serpent_generic and wp512 to the default set of modules.Mark H Weaver2016-02-03
| | | | | | | | Adds modules needed for encrypted root partitions using the Serpent cipher or Whirlpool digest algorithms. * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add "serpent_generic" and "wp512".
* linux-initrd: Add hid-generic and hid-apple to the default set of modules.Mark H Weaver2016-02-03
| | | | | | | | Fixes keyboard of MacBook2,1 during early boot, e.g. for typing a password to mount an encrypted root partition. * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add "hid-generic" and "hid-apple".
* linux-initrd: Remove "usbkbd" from the default set of modules.Ludovic Courtès2016-01-17
| | | | | | | Reported by Ricardo Wurmus <rekado@elephly.net> at <http://debbugs.gnu.org/cgi/bugreport.cgi?bug=20433#39>. * gnu/system/linux-initrd.scm (base-initrd): Remove "usbkbd".
* linux-initrd: Use pata_acpi, pata_atiixp, and isci modules only on Intel.Mark H Weaver2015-10-27
| | | | | * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Include "pata_acpi", "pata_atiixp", and "isci" on Intel systems only.
* linux-initrd: Add LUKS/dm-crypt modules to the initrd.Ludovic Courtès2015-09-20
| | | | | | | | | | Suggested by Petter <petter@mykolab.ch> and Mark H Weaver <mhw@netris.org>. Partly fixes <http://bugs.gnu.org/19190>. * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add dm-crypt and xts.
* gnu: Include (guix build syscalls) module in initrd/VM derivations.David Thompson2015-07-10
| | | | | | | | | | This bug was introduced in commit 85c3127. Thanks to Christopher Webber for reporting it. * gnu/syste/linux-initrd.scm (base-initrd): Include (guix build syscalls) module in derivation. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise.
* gnu: system: Move file-system->spec to (gnu system file-systems).David Thompson2015-07-07
| | | | | * gnu/system/linux-initrd.scm (file-system->spec): Move this... * gnu/system/file-systems.scm: ... to here.
* linux-initrd: Use (guix cpio) instead of GNU cpio.Ludovic Courtès2015-06-24
| | | | | | | | | * gnu/build/linux-initrd.scm (write-cpio-archive): Remove 'open-pipe*' and related calls. Compute list of files in 'files' variable. Use 'cpio:write-cpio-archive'. Remove #:cpio parameter. (build-initrd): Remove #:cpio parameter. * gnu/system/linux-initrd.scm (expression->initrd): Likewise, and adjust BUILDER accordingly. Add (guix cpio) to #:modules.
* linux-initrd: Add virtio drivers by default.Ludovic Courtès2015-04-05
| | | | | * gnu/system/linux-initrd.scm (base-initrd): Change #:virtio? default to #t. This will facilitate the use of GuixSD in VM guests.
* system: Take kernel modules from the user-specified kernel.Andy Wingo2015-04-05
| | | | | | | | | | | * gnu/system/linux-initrd.scm (base-initrd): Add #:linux option to specify the linux kernel to use. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Propagate #:linux to base-initrd. * gnu/system.scm (operating-system-initrd-file): Pass #:linux to 'make-initrd'. Co-authored-by: Ludovic Courtès <ludo@gnu.org>
* linux-initrd: Add 'isci' module, needed for some SAS controllers.Ludovic Courtès2015-02-09
| | | | | | Encountered on a Dell Precision T3600. * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add isci.
* linux-initrd: Add USB kernel modules to the default initrd.Ludovic Courtès2015-01-27
| | | | | | | * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add usb-storage, uas, usbkbd, and usbhid. * gnu/system/vm.scm (system-disk-image): Remove #:extra-modules argument to 'base-initrd'.
* monads: Move '%store-monad' and related procedures where they belong.Ludovic Courtès2015-01-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This turns (guix monads) into a generic module for monads, and moves the store monad and related monadic procedures in their corresponding module. * guix/monads.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file, package-file, package->derivation, package->cross-derivation, origin->derivation, imported-modules, compiled, modules, built-derivations, run-with-store): Move to... * guix/store.scm (store-return, store-bind, %store-monad, store-lift, text-file, interned-file): ... here. (%guile-for-build): New variable. (run-with-store): Moved from monads.scm. Remove default value for #:guile-for-build. * guix/packages.scm (default-guile): Export. (set-guile-for-build): New procedure. (package-file, package->derivation, package->cross-derivation, origin->derivation): Moved from monads.scm. * guix/derivations.scm (%guile-for-build): Remove. (imported-modules): Rename to... (%imported-modules): ... this. (compiled-modules): Rename to... (%compiled-modules): ... this. (built-derivations, imported-modules, compiled-modules): New procedures. * gnu/services/avahi.scm, gnu/services/base.scm, gnu/services/dbus.scm, gnu/services/dmd.scm, gnu/services/networking.scm, gnu/services/ssh.scm, gnu/services/xorg.scm, gnu/system/install.scm, gnu/system/linux-initrd.scm, gnu/system/shadow.scm, guix/download.scm, guix/gexp.scm, guix/git-download.scm, guix/profiles.scm, guix/svn-download.scm, tests/monads.scm: Adjust imports accordingly. * guix/monad-repl.scm (default-guile-derivation): New procedure. (store-monad-language, run-in-store): Use it. * build-aux/hydra/gnu-system.scm (qemu-jobs): Add explicit 'set-guile-for-build' call. * guix/scripts/archive.scm (derivation-from-expression): Likewise. * guix/scripts/build.scm (options/resolve-packages): Likewise. * guix/scripts/environment.scm (guix-environment): Likewise. * guix/scripts/system.scm (guix-system): Likewise. * doc/guix.texi (The Store Monad): Adjust module names accordingly.
* linux-initrd: Add the 'virtio_console' module for QEMU guests.Ludovic Courtès2014-12-08
| | | | | * gnu/system/linux-initrd.scm (base-initrd)[virtio-modules]: Add "virtio_console".
* linux-initrd: Remove the ".ko" suffix from module names in 'base-initrd'.Ludovic Courtès2014-11-28
| | | | | * gnu/system/linux-initrd.scm (base-initrd): Remove the .ko suffix from module names.
* linux-initrd: Remove now redundant module names.Ludovic Courtès2014-11-28
| | | | | | | * gnu/system/linux-initrd.scm (base-initrd)[virtio-modules]: Remove "virtio.ko" and "virtio_ring.ko". [virtio-9p-modules]: Remove "fscache.ko" and "9pnet.ko". [linux-modules]: Remove "libahci.ko".
* linux-boot: Load modules and their dependencies, à la 'modprobe'.Ludovic Courtès2014-11-28
| | | | | | | | | | | | | * gnu/build/linux-boot.scm: Use (gnu build linux-modules). (load-linux-module*): Remove. (boot-system): Add #:linux-module-directory parameter. [lookup-module]: New procedure. Call 'current-module-debugging-port'. Pass #:lookup-module to 'load-linux-module*'. Map LOOKUP-MODULE on LINUX-MODULES. * gnu/system/linux-initrd.scm (base-initrd): Adjust 'boot-system' call accordingly. Adjust #:modules argument as well. * gnu/system.scm (operating-system-activation-script)[%modules]: Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise.
* linux-initrd: Copy modules and their dependencies to the initrd.Ludovic Courtès2014-11-28
| | | | | | | * gnu/system/linux-initrd.scm (flat-linux-module-directory)[build-exp]: Add 'lookup' procedure. Use 'recursive-module-dependencies' to compute the list of modules to copy. Adjust #:modules parameter.
* linux-initrd: Add modules for ATA controllers by default.Ludovic Courtès2014-11-13
| | | | | | | Reported by th3kent on #guix. * gnu/system/linux-initrd.scm (base-initrd)[linux-modules]: Add pata_acpi.ko and pata_atiixp.ko.
* system: Add support for boot-time mapped devices.Ludovic Courtès2014-09-22
| | | | | | | | | | | | | | * gnu/build/linux-boot.scm (boot-system): Add #:pre-mount parameter and honor it. * gnu/system/linux-initrd.scm (base-initrd): Add #:mapped-devices parameter. Add 'device-mapping-commands' variable, and use it to build the #:pre-mount argument of 'boot-system'. * gnu/system.scm (mapped-device-user, operating-system-user-mapped-devices, operating-system-boot-mapped-devices): New procedures. (device-mapping-services): Use 'operating-system-user-mapped-devices' instead of 'operating-system-mapped-devices'. (operating-system-initrd-file): Call the initrd with #:mapped-devices.
* linux-initrd: Remove now obsolete #:guile-modules-in-chroot? parameter.Ludovic Courtès2014-09-18
| | | | | | | | * gnu/build/linux-boot.scm (boot-system): Remove #:guile-modules-in-chroot? and related code. * gnu/system/linux-initrd.scm (base-initrd): Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Remove #:guile-modules-in-chroot? argument in 'base-initrd' call.
* system: Add support for Linux-style mapped devices.Ludovic Courtès2014-09-12
| | | | | | | | | | | | | | | * gnu/system/file-systems.scm (<mapped-device>): New record type. * gnu/system.scm (<operating-system>)[mapped-devices]: New field. (luks-device-mapping): New procedure. (other-file-system-services)[device-mappings, requirements]: New procedures. Pass #:requirements to 'file-system-service'. (device-mapping-services): New procedure. (essential-services): Use it. Append its result to the return value. (operating-system-initrd-file): Add comment. * gnu/services/base.scm (file-system-service): Add #:requirements parameter and honor it. (device-mapping-service): New procedure. * gnu/system/linux-initrd.scm (base-initrd): Add comment.
* linux-initrd: Store Linux modules in a normal store directory.Ludovic Courtès2014-09-08
| | | | | | | | | | | | | | | | * gnu/system/linux-initrd.scm (expression->initrd): Remove #:linux and #:linux-modules parameters. Remove call to 'float-linux-module-directory'. (base-initrd): Add call to 'float-linux-module-directory'. Use it in #:linux-modules argument in the gexp. Remove #:linux and #:linux-modules arguments to 'expression->initrd'. * gnu/build/linux-initrd.scm (build-initrd): Remove #:linux-module-directory parameter. Don't create 'modules' sub-directory. * gnu/build/linux-boot.scm (boot-system): Mentin that LINUX-MODULES is a list of absolute file names. Don't prepend "/modules/" to LINUX-MODULES. * doc/guix.texi (Initial RAM Disk): Adjust accordingly.
* linux-initrd: Remove #:to-copy argument of 'expression->initrd'.Ludovic Courtès2014-09-08
| | | | | | | | * gnu/system/linux-initrd.scm (expression->initrd): Remove #:to-copy parameter. Remove 'graph-files', and adjust #:references-graphs arguments to just list INIT. (base-initrd): Remove #:to-copy argument. * doc/guix.texi (Initial RAM Disk): Adjust accordingly.
* linux-initrd: Move initrd creation code to (guix build linux-initrd).Ludovic Courtès2014-09-08
| | | | | | | * gnu/build/linux-initrd.scm (cache-compiled-file-name, compile-to-cache, build-initrd): New procedures. * gnu/system/linux-initrd.scm (expression->initrd)[builder]: Remove code now moved above. Use 'build-initrd'.
* linux-initrd: Copy all the script's closure to the initrd.Ludovic Courtès2014-09-08
| | | | | | | | | | | | | * gnu/system/linux-initrd.scm (expression->initrd): Remove calls to 'imported-modules' and 'compiled-modules'. Use 'gexp->script' with EXP. Add the result to TO-COPY. Make /init a symlink to that script, and copy its closure into the "contents" directory. Add fake /proc/self/exe symlink. * gnu/build/linux-boot.scm (load-linux-module*): Add comment about mmap. * gnu/system/vm.scm (system-qemu-image/shared-store-script): Add "-m 256". This turns out to be needed for initrds containing things like e2fsck and several modules; with the default of 128 MiB, loading libahci.ko may fail with -1.
* linux-initrd: Populate the initrd's store with complete closures.Ludovic Courtès2014-09-06
| | | | | | * gnu/system/linux-initrd.scm (expression->initrd): Add 'graph-files'. Use (guix build store-copy) and 'populate-store' instead of local hack. Pass #:references-graphs to 'gexp->derivation'.
* linux-initrd: Move Linux module tree flattening to another derivation.Ludovic Courtès2014-09-04
| | | | | | | | * gnu/system/linux-initrd.scm (expression->initrd)[string->regexp]: Remove. Use 'flat-linux-module-directory'. Remove the equivalent logic from 'builder'. (flat-linux-module-directory): New procedure.
* linux-initrd: Factorize cpio archive creation.Ludovic Courtès2014-09-03
| | | | | | | * gnu/build/linux-initrd.scm: New file. * gnu-system.am (GNU_SYSTEM_MODULES): Add it. * gnu/system/linux-initrd.scm (expression->initrd): Use (gnu build linux-initrd) and 'write-cpio-archive' instead of the inlined code.
* Move part of (gnu build linux-boot) to (gnu build file-systems).Ludovic Courtès2014-09-03
| | | | | | | | | | | | | | | | | | * gnu/build/linux-boot.scm (%ext2-endianness, %ext2-sblock-magic, %ext2-sblock-creator-os, %ext2-sblock-uuid, %ext2-sblock-volume-name, read-ext2-superblock, ext2-superblock-uuid, ext2-superblock-volume-name, disk-partitions, partition-label-predicate, find-partition-by-label, canonicalize-device-spec, MS_RDONLY, MS_NOSUID, MS_NODEV, MS_NOEXEC, MS_BIND, MS_MOVE, bind-mount, check-file-system, mount-flags->bit-mask, mount-file-system): Move to... * gnu/build/file-systems.scm: ... here. New file. * gnu-system.am (GNU_SYSTEM_MODULES): Add it. * gnu/services/base.scm: Use (gnu build file-systems). * gnu/services/dmd.scm (dmd-configuration-file): Likewise. * gnu/system.scm (operating-system-activation-script): Likewise. * gnu/system/linux-initrd.scm (base-initrd): Likewise. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Likewise.
* Rename (gnu build linux-initrd) to (gnu build linux-boot).Ludovic Courtès2014-09-03
| | | | | | | | | * gnu/build/linux-initrd.scm: Rename to... * gnu/build/linux-boot.scm: ... this. * gnu-system.am (GNU_SYSTEM_MODULES): Adjust accordingly. * gnu/build/activation.scm, gnu/build/vm.scm, gnu/services/base.scm, gnu/services/dmd.scm, gnu/system.scm, gnu/system/linux-initrd.scm, gnu/system/vm.scm: Adjust accordingly.
* Move operating system helpers from (guix build …) to (gnu build …).Ludovic Courtès2014-09-03
| | | | | | | | | | | | * guix/build/activation.scm, guix/build/install.scm, guix/build/linux-initrd.scm, guix/build/vm.scm: Move to... * gnu/build: ... here. * Makefile.am (MODULES): Remove the above guix/build/ files. * gnu-system.am (GNU_SYSTEM_MODULES): Add the above gnu/build/ files here. * gnu/services/base.scm, gnu/services/dmd.scm, gnu/system.scm, gnu/system/linux-initrd.scm, gnu/system/vm.scm, guix/scripts/system.scm: Adjust to the new module names.
* linux-initrd: Load fscache.ko before the 9p modules.Ludovic Courtès2014-08-15
| | | | | * gnu/system/linux-initrd.scm (base-initrd)[virtio-9p-modules]: Add "fscache.ko", required by Linux-libre 3.16.
* linux-initrd: Add AHCI modules.David Thompson2014-07-19
| | | | * gnu/system/linux-initrd (linux-modules): Add them.
* doc: Add "Initial RAM Disk" section.Ludovic Courtès2014-07-17
| | | | | * doc/guix.texi (Initial RAM Disk): New node. * gnu/system/linux-initrd.scm (expression->initrd): Adjust docstring.
* linux-initrd: Allow extra modules to be passed to 'base-initrd'.Ludovic Courtès2014-07-13
| | | | | * gnu/system/linux-initrd.scm (base-initrd): Add #:extra-modules parameter.
* linux-initrd: Rename 'qemu-initrd' to 'base-initrd'.Ludovic Courtès2014-07-01
| | | | | | | | * gnu/system/linux-initrd.scm (qemu-initrd): Rename to... (base-initrd): ... this. * gnu/system.scm (<operating-system>)[initrd]: Update accordingly. * gnu/system/vm.scm (expression->derivation-in-linux-vm, system-disk-image, virtualized-operating-system): Likewise.
* linux-initrd: Disable QEMU networking by default.Ludovic Courtès2014-07-01
| | | | | | | | | * gnu/system/linux-initrd.scm (qemu-initrd): Remove default value for #:qemu-networking?. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Pass #:qemu-networking? #t. (system-disk-image): Remove #:qemu-networking? #f. (virtualized-operating-system): Pass #:qemu-networking? #t.
* linux-initrd: Make the virtio kernel modules optional.Ludovic Courtès2014-07-01
| | | | | | | | * gnu/system/linux-initrd.scm (qemu-initrd): Add #:virtio? parameter. Use it. * gnu/system/vm.scm (expression->derivation-in-linux-vm): Pass 'qemu-initrd' #:virtio?. (virtualized-operating-system): Likewise.
* system: File system sources can be marked as labels or devices.Ludovic Courtès2014-06-03
| | | | | | | | | | | | | | | | | * 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'.
* vm: Disable QEMU networking in the disk image initrd.Ludovic Courtès2014-05-23
| | | | | | * gnu/system/linux-initrd.scm (qemu-initrd): Add #:qemu-networking? parameter and honor it. * gnu/system/vm.scm (system-disk-image): Pass #:qemu-networking #f.
* Add (gnu system file-systems).Ludovic Courtès2014-05-20
| | | | | | | | | | | | | This fixes a circular dependency between (gnu system) and (gnu system linux-initrd), where the latter could end up being compiled before 'file-system-type' was defined as a macro. * gnu/system.scm (<file-system>, %fuse-control-file-system, %binary-format-file-system): Move to... * gnu/system/file-systems.scm: ... here. New file. * build-aux/hydra/demo-os.scm, gnu/system/linux-initrd.scm, gnu/system/vm.scm: Use it. * gnu-system.am (GNU_SYSTEM_MODULES): Add it.
* linux-initrd: Check the root and other early file systems.Ludovic Courtès2014-05-04
| | | | | | | | | | | | | | | | | | | | * gnu/system.scm (operating-system-derivation)[boot-file-systems]: Keep "/". * gnu/system/linux-initrd.scm (file-system->spec): Keep the 'check?' flag. (qemu-initrd)[helper-packages]: New variable. Pass it as #:to-copy. <gexp>: Add 'set-path-environment-variable' call. Remove #:unionfs argument for 'boot-system'. * gnu/system/vm.scm (%linux-vm-file-systems): Add 'check?' field/ (virtualized-operating-system): Likewise for the "9p" file system. * guix/build/linux-initrd.scm (mount-root-file-system): Change #:unionfs default. Call 'check-file-system' before mounting ROOT, when VOLATILE-ROOT? is false. (check-file-system): New procedure. (mount-file-system): Honor 'check?' element in list; add 'check-file-system' call. (boot-system): Remove #:root-fs-type and #:unionfs parameters. [root-mount-point?, root-fs-type]: New variables. Call 'mount-file-system' on all MOUNTS but "/".
* system: Add first-class file system declarations.Ludovic Courtès2014-05-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * gnu/system.scm (<operating-system>)[initrd]: Default to 'qemu-initrd'. (<file-system>): New record type. (operating-system-root-file-system): New procedure. (operating-system-derivation): Take the device name for GRUB from 'operating-system-root-file-system'. Pass the 'operating-system-initrd' procedure the list of boot file systems. * gnu/system/linux-initrd.scm (file-system->spec): New procedure. (qemu-initrd): Add 'file-systems' parameter, and remove #:mounts parameter. [file-system-type-predicate]: New procedure. [linux-modules]: Use it. Adjust #:mounts argument in 'boot-system' call. (gnu-system-initrd): Remove. * gnu/system/vm.scm (%linux-vm-file-systems): New variable. (expression->derivation-in-linux-vm): Adjust call to 'qemu-initrd'. (virtualized-operating-system): New procedure. (system-qemu-image/shared-store-script)[initrd]: Remove. Use 'virtualized-operating-system'. Get the 'initrd' file from OS-DRV. * guix/build/linux-initrd.scm (mount-qemu-smb-share, mount-qemu-9p): Remove. (MS_RDONLY, MS_BIND): New global variables. (bind-mount): Remove local 'MS_BIND' definition. (mount-root-file-system): New procedure, with code formerly in 'boot-system'. (mount-file-system): New procedure. (boot-system): Add #:root-fs-type parameter. Remove 'MS_RDONLY' local variable. Use 'mount-root-file-system' and 'mount-file-system'. * doc/guix.texi (Using the Configuration System): Add 'file-system' declaration.
* linux-initrd: Rewrite using gexps.Ludovic Courtès2014-04-28
| | | | | | | * gnu/system/linux-initrd.scm (expression->initrd): Rename 'inputs' parameter to 'to-copy'. Remove 'files-to-copy'. Rewrite 'builder' as a gexp, and use 'gexp->derivation'. (qemu-initrd): Adjust accordingly.
* linux-initrd: Mount / as a unionfs when asking for a volatile root.Ludovic Courtès2014-04-14
| | | | | | | | | | | | | | * guix/build/linux-initrd.scm (make-essential-device-nodes): Make /dev/fuse. (boot-system): Add #:unionfs parameter. Invoke UNIONFS instead of copying files over when VOLATILE-ROOT? is true. * gnu/system/linux-initrd.scm (expression->initrd): Add #:inputs parameter. [files-to-copy]: New procedure. [builder]: Add 'to-copy' parameter; honor it. (qemu-initrd)[linux-modules]: Add 'fuse.ko' when VOLATILE-ROOT?. Pass UNIONFS-FUSE/STATIC as #:inputs; change builder to pass #:unionfs to 'boot-system'.
* gnu: linux-initrd: Default initrd has no network mounts.Ludovic Courtès2014-04-09
| | | | | * gnu/system/linux-initrd.scm (gnu-system-initrd): Add #:mounts argument.
* gnu: linux-initrd: Allow the root file system to be volatile.Ludovic Courtès2014-01-31
| | | | | | * gnu/system/linux-initrd.scm (qemu-initrd): Add 'volatile-root?' parameter. * guix/build/linux-initrd.scm (boot-system): Likewise. Honor it.
* gnu: linux-initrd: Recognize 9p file systems.Ludovic Courtès2014-01-31
| | | | | | | | | * gnu/system/linux-initrd.scm (qemu-initrd)[virtio-9p-modules]: New variable. [linux-modules]: Append VIRTIO-9P-MODULES when a 9p file system is in MOUNTS. * guix/build/linux-initrd.scm (mount-qemu-9p): New procedure. (boot-system): Recognize '9p' in MOUNTS, and use 'mount-qemu-9p'.