system: Define <boot-parameters> before first use.
Fixes <http://bugs.gnu.org/26791>. Reported by Mark H Weaver <mhw@netris.org>. * gnu/system.scm (<boot-parameters>, read-boot-parameters) (read-boot-parameters-file): Move before first use of the 'boot-parameters' macro.
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Ludovic Courtès
parent
0fd8e6d39f
commit
8e815c5b69
189
gnu/system.scm
189
gnu/system.scm
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@ -199,6 +199,100 @@ directly by the user."
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;;;
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;;; Boot parameters
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;;;
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(define-record-type* <boot-parameters>
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boot-parameters make-boot-parameters boot-parameters?
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(label boot-parameters-label)
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;; Because we will use the 'store-device' to create the GRUB search command,
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;; the 'store-device' has slightly different semantics than 'root-device'.
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;; The 'store-device' can be a file system uuid, a file system label, or #f,
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;; but it cannot be a device path such as "/dev/sda3", since GRUB would not
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;; understand that. The 'root-device', on the other hand, corresponds
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;; exactly to the device field of the <file-system> object representing the
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;; OS's root file system, so it might be a device path like "/dev/sda3".
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(root-device boot-parameters-root-device)
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(store-device boot-parameters-store-device)
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(store-mount-point boot-parameters-store-mount-point)
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(kernel boot-parameters-kernel)
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(kernel-arguments boot-parameters-kernel-arguments)
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(initrd boot-parameters-initrd))
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(define (read-boot-parameters port)
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"Read boot parameters from PORT and return the corresponding
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<boot-parameters> object or #f if the format is unrecognized."
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(match (read port)
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(('boot-parameters ('version 0)
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('label label) ('root-device root)
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('kernel linux)
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rest ...)
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(boot-parameters
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(label label)
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(root-device root)
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;; In the past, we would store the directory name of the kernel instead
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;; of the absolute file name of its image. Detect that and correct it.
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(kernel (if (string=? linux (direct-store-path linux))
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(string-append linux "/"
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(system-linux-image-file-name))
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linux))
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(kernel-arguments
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(match (assq 'kernel-arguments rest)
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((_ args) args)
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(#f '()))) ;the old format
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(initrd
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(match (assq 'initrd rest)
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(('initrd ('string-append directory file)) ;the old format
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(string-append directory file))
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(('initrd (? string? file))
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file)))
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(store-device
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(match (assq 'store rest)
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(('store ('device device) _ ...)
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device)
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(_ ;the old format
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;; Root might be a device path like "/dev/sda1", which is not a
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;; suitable GRUB device identifier.
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(if (string-prefix? "/" root)
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#f
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root))))
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(store-mount-point
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(match (assq 'store rest)
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(('store ('device _) ('mount-point mount-point) _ ...)
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mount-point)
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(_ ;the old format
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"/")))))
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(x ;unsupported format
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(warning (G_ "unrecognized boot parameters for '~a'~%")
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system)
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#f)))
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(define (read-boot-parameters-file system)
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"Read boot parameters from SYSTEM's (system or generation) \"parameters\"
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file and returns the corresponding <boot-parameters> object or #f if the
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format is unrecognized.
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The object has its kernel-arguments extended in order to make it bootable."
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(let* ((file (string-append system "/parameters"))
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(params (call-with-input-file file read-boot-parameters))
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(root (boot-parameters-root-device params))
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(root-device (if (bytevector? root)
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(uuid->string root)
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root))
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(kernel-arguments (boot-parameters-kernel-arguments params)))
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(if params
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(boot-parameters
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(inherit params)
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(kernel-arguments (bootable-kernel-arguments kernel-arguments
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system
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root-device)))
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#f)))
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;;;
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;;; Services.
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;;;
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@ -813,99 +907,4 @@ being stored into the \"parameters\" file)."
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(mount-point #$(boot-parameters-store-mount-point params))))
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#:set-load-path? #f)))
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;;;
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;;; Boot parameters
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;;;
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(define-record-type* <boot-parameters>
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boot-parameters make-boot-parameters boot-parameters?
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(label boot-parameters-label)
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;; Because we will use the 'store-device' to create the GRUB search command,
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;; the 'store-device' has slightly different semantics than 'root-device'.
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;; The 'store-device' can be a file system uuid, a file system label, or #f,
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;; but it cannot be a device path such as "/dev/sda3", since GRUB would not
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;; understand that. The 'root-device', on the other hand, corresponds
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;; exactly to the device field of the <file-system> object representing the
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;; OS's root file system, so it might be a device path like "/dev/sda3".
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(root-device boot-parameters-root-device)
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(store-device boot-parameters-store-device)
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(store-mount-point boot-parameters-store-mount-point)
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(kernel boot-parameters-kernel)
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(kernel-arguments boot-parameters-kernel-arguments)
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(initrd boot-parameters-initrd))
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(define (read-boot-parameters port)
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"Read boot parameters from PORT and return the corresponding
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<boot-parameters> object or #f if the format is unrecognized."
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(match (read port)
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(('boot-parameters ('version 0)
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('label label) ('root-device root)
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('kernel linux)
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rest ...)
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(boot-parameters
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(label label)
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(root-device root)
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;; In the past, we would store the directory name of the kernel instead
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;; of the absolute file name of its image. Detect that and correct it.
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(kernel (if (string=? linux (direct-store-path linux))
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(string-append linux "/"
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(system-linux-image-file-name))
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linux))
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(kernel-arguments
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(match (assq 'kernel-arguments rest)
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((_ args) args)
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(#f '()))) ;the old format
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(initrd
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(match (assq 'initrd rest)
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(('initrd ('string-append directory file)) ;the old format
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(string-append directory file))
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(('initrd (? string? file))
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file)))
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(store-device
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(match (assq 'store rest)
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(('store ('device device) _ ...)
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device)
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(_ ;the old format
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;; Root might be a device path like "/dev/sda1", which is not a
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;; suitable GRUB device identifier.
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(if (string-prefix? "/" root)
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#f
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root))))
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(store-mount-point
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(match (assq 'store rest)
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(('store ('device _) ('mount-point mount-point) _ ...)
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mount-point)
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(_ ;the old format
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"/")))))
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(x ;unsupported format
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(warning (G_ "unrecognized boot parameters for '~a'~%")
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system)
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#f)))
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(define (read-boot-parameters-file system)
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"Read boot parameters from SYSTEM's (system or generation) \"parameters\"
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file and returns the corresponding <boot-parameters> object or #f if the
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format is unrecognized.
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The object has its kernel-arguments extended in order to make it bootable."
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(let* ((file (string-append system "/parameters"))
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(params (call-with-input-file file read-boot-parameters))
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(root (boot-parameters-root-device params))
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(root-device (if (bytevector? root)
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(uuid->string root)
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root))
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(kernel-arguments (boot-parameters-kernel-arguments params)))
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(if params
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(boot-parameters
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(inherit params)
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(kernel-arguments (bootable-kernel-arguments kernel-arguments
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system
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root-device)))
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#f)))
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;;; system.scm ends here
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