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Viewing changes to kernel/i386.sh

  • Committer: Bazaar Package Importer
  • Author(s): Colin Watson
  • Date: 2011-05-26 15:54:12 UTC
  • mfrom: (0.2.18 sid)
  • Revision ID: james.westby@ubuntu.com-20110526155412-aj6c54r99zdaa1u6
Tags: 1.119ubuntu1
* Resynchronise with Debian.  Remaining changes:
  - Use and depend on the Ubuntu keyring.
  - Enable the restricted component by default, unless
    apt-setup/restricted is preseeded to false.
  - Set up the default sources.list to look in -updates and -security (the
    latter from apt-setup/security_host) as well as the unadorned suite;
    also -proposed if apt-setup/proposed is true.
  - Use Ubuntu kernel image names.
  - Allow preseeding base-installer/kernel/override-image to force a given
    kernel to be used.
  - Install busybox-initramfs rather than busybox.
  - Revert Joey's patch to call base-installer.d hooks after running
    debootstrap, which broke console-setup's expectation of being able to
    insert its configuration file into /target before console-setup is
    installed by debootstrap.
  - Add armel/imx51, armel/dove, and armel/omap subarchitectures.
  - Install kernel headers to match the kernel. This may be overridden by
    setting base-installer/kernel/headers to false.
  - Add base-installer/kernel/backports-modules template, which may be
    preseeded to install selected linux-backports-modules-* packages.
  - Run dpkg with --force-unsafe-io during installation.
* Explicitly drop code supporting -386 kernels, which were dropped from
  Ubuntu some time ago.

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kernel/i386.sh
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                HAVE_LM=n
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        fi
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        # Should we offer a bigmem kernel?
 
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        # Should we offer a PAE kernel?
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        local HAVE_PAE
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        if grep -q '^flags.*\bpae\b' "$CPUINFO"; then
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                HAVE_PAE=y
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                HAVE_PAE=n
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        fi
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        # Should we prefer a bigmem/amd64 kernel - is there RAM above 4GB?
 
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        # Should we prefer a PAE/amd64 kernel - is there RAM above 4GB?
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        local WANT_PAE
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        if [ -z "$RAM_END" ]; then
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                local MAP MAP_END
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        else
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                WANT_PAE=n
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        fi
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        # or is the installer running a 686-bigmem kernel?
 
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        # or is the installer running a PAE kernel?
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        case "$KERNEL_FLAVOUR" in
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            686-bigmem*|generic-pae|xen)
 
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            686-bigmem* | 686-pae* | generic-pae | xen)
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                WANT_PAE=y
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                ;;
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        esac
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        case "$HAVE_LM$HAVE_PAE$WANT_PAE" in
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            yyy)
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                echo 686-bigmem amd64 686 486
 
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                echo 686-pae 686-bigmem amd64 686 486
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                return 0
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                ;;
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            yyn)
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                echo 686 686-bigmem amd64 486
 
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                echo 686 686-pae 686-bigmem amd64 486
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                return 0
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                ;;
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            yn?)
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                warning "Processor with LM but no PAE???"
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                ;;
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            nyy)
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                echo 686-bigmem 686 486
 
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                echo 686-pae 686-bigmem 686 486
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                return 0
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                ;;
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            nyn)
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                echo 686 686-bigmem 486
 
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                echo 686 686-pae 686-bigmem 486
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                return 0
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                ;;
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            nn?)
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                ;;
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        esac
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        local VENDOR FAMILY MODEL
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        VENDOR=$(sed -n 's/^vendor_id\s*: //; T; p; q' "$CPUINFO")
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        FAMILY=$(sed -n 's/^cpu family\s*: //; T; p; q' "$CPUINFO")
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        MODEL=$(sed -n 's/^model\s*: //; T; p; q' "$CPUINFO")
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        case "$VENDOR" in
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            AuthenticAMD*)
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                case "$FAMILY" in
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                    6|15|16|17|18|20)   echo 686 486 ;;
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                    *)                  echo 486 ;;
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                esac
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                ;;
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            GenuineIntel)
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                case "$FAMILY" in
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                    6|15)       echo 686 486 ;;
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                    *)          echo 486 ;;
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                esac
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                ;;
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            GenuineTMx86*)
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                case "$FAMILY" in
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                    # Do all of these have cmov?
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                    6|15)       echo 686 486 ;;
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                    *)          echo 486 ;;
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                esac
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                ;;
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            CentaurHauls)
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                case "$FAMILY" in
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                    6)
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                        case "$MODEL" in
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                            9|10|13)    echo 686 486 ;;
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                            *)          echo 486 ;;
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                        esac
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                        ;;
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                    *)
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                        echo 486 ;;
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                esac
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                ;;
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            *)
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                echo 486 ;;
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        esac
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        return 0
 
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        # Should we offer a 686 kernel?
 
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        if grep -q '^flags.*\bfpu\b.*\btsc\b.*\bcx8\b.*\bcmov\b' "$CPUINFO"; then
 
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                echo 686 486
 
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        else
 
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                echo 486
 
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        fi
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}
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arch_check_usable_kernel () {
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        set -- $2
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        while [ $# -ge 1 ]; do
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                case "$1:$NAME" in
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                    486:*-386|486:*-386-*)
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                        return 0
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                        ;;
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                    686-bigmem:*-generic-pae|686-bigmem:*-generic-pae-*)
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                        return 0
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                        ;;
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                    *:*-generic-pae|*:*-generic-pae-*)
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                        # Don't allow -generic-pae for non-bigmem
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                        ;;
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                    686*:*-generic|686*:*-generic-*)
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                        return 0
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                        ;;
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                    686*:*-virtual|686*:*-virtual-*)
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                        return 0
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                        ;;
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                    686*:*-rt|686*:*-rt-*)
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                        return 0
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                        ;;
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                    686-bigmem:*-xen|686-bigmem:*-xen-*)
 
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                    *:*-"$1")
 
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                        return 0;
 
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                        ;;
 
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                    *:*-"$1"-bigmem* | *:*-"$1"-pae*)
 
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                        # Don't allow -bigmem or -pae suffix, as these
 
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                        # require extra CPU features
 
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                        ;;
 
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                    *:*-"$1"-*)
 
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                        # Do allow any other hyphenated suffix
 
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                        return 0
 
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                        ;;
 
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                    686-pae:*-generic-pae | 686-pae:*-generic-pae-*)
 
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                        return 0
 
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                        ;;
 
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                    *:*-generic-pae | *:*-generic-pae-*)
 
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                        # Don't allow -generic-pae for non-pae
 
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                        ;;
 
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                    686*:*-generic | 686*:*-generic-*)
 
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                        return 0
 
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                        ;;
 
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                    686*:*-virtual | 686*:*-virtual-*)
 
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                        return 0
 
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                        ;;
 
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                    686*:*-rt | 686*:*-rt-*)
 
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                        return 0
 
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                        ;;
 
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                    686-pae:*-xen | 686-pae:*-xen-*)
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                        return 0
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                        ;;
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                esac
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        set -- $1
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        while [ $# -ge 1 ]; do
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                case $1 in
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                    686-bigmem)
 
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                    686-pae)
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                        echo "linux-generic-pae"
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                        echo "linux-image-generic-pae"
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                        echo "linux-xen"
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                        echo "linux-rt"
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                        echo "linux-image-rt"
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                        ;;
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                    486)
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                        echo "linux-386"
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                        echo "linux-image-386"
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                        ;;
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                esac
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                shift
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        done