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syslinux: Add /etc/kernel.d scripts.

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travankor 2018-04-29 17:04:33 -07:00 committed by Enno Boland
parent e0d287dd3c
commit e13236c8a8
4 changed files with 130 additions and 1 deletions
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13
srcpkgs/syslinux/INSTALL.msg
View file

@ -4,3 +4,16 @@ Some optional packages must be installed for additional functionality:
- gptfdisk: GPT support
- efibootmgr: EFI support
- dosfstools: EFI support
Kernel.d scripts update the current and fallback kernel using these keywords:
- LABEL void
- LABEL voidfallback
- LINUX (or KERNEL)
- INITRD (or initrd)
Avoid using these keywords for the MENU LABEL entry.
For more information on how to setup syslinux.cfg, see:
https://www.syslinux.org/wiki/?title=SYSLINUX#How_do_I_Configure_SYSLINUX.3F

57
srcpkgs/syslinux/files/kernel.d/syslinux.post-install Executable file
View file

@ -0,0 +1,57 @@
#!/bin/sh
#
# Kernel hook for SYSLINUX.
#
# Arguments passed to this script: $1 pkgname, $2 version.
#
PKGNAME="$1"
VERSION="$2"
CFGFILE="$ROOTDIR/boot/syslinux/syslinux.cfg"
LABELVOID_LINENUMBER=$(
grep -nwm 1 'LABEL void' "$CFGFILE" |
awk '{print ($0+0)}')
LABELVOIDFALLBACK_LINENUMBER=$(
grep -nwm 1 'LABEL voidfallback' "$CFGFILE" |
awk '{print ($0+0)}')
VOID_KERNEL_LINENUMBER=$(
tail -n +"$LABELVOID_LINENUMBER" "$CFGFILE" |
grep -Enwm 1 'LINUX|KERNEL' |
awk '{print ($0+offset)}' offset="$((LABELVOID_LINENUMBER-1))")
VOID_INITRD_LINENUMBER=$(
tail -n +"$LABELVOID_LINENUMBER" "$CFGFILE" |
grep -nwim 1 'INITRD' |
awk '{print ($0+offset)}' offset="$((LABELVOID_LINENUMBER-1))")
VOIDFALLBACK_KERNEL_LINENUMBER=$(
tail -n +"$LABELVOIDFALLBACK_LINENUMBER" "$CFGFILE" |
grep -Enwm 1 'LINUX|KERNEL' |
awk '{print ($0+offset)}' offset="$((LABELVOIDFALLBACK_LINENUMBER-1))")
VOIDFALLBACK_INITRD_LINENUMBER=$(
tail -n +"$LABELVOIDFALLBACK_LINENUMBER" "$CFGFILE" |
grep -nwim 1 'INITRD' |
awk '{print ($0+offset)}' offset="$((LABELVOIDFALLBACK_LINENUMBER-1))")
#only use LINUX|KERNEL line to parse old kernel version
OLD_VERSION=$(
sed -n "${VOID_KERNEL_LINENUMBER}p" "$CFGFILE" |
awk '{print $2}' |
awk 'BEGIN{FS="-"}{print $2}')
OLD_FALLBACKVERSION=$(
sed -n "${VOIDFALLBACK_KERNEL_LINENUMBER}p" "$CFGFILE" |
awk '{print $2}' |
awk 'BEGIN{FS="-"}{print $2}')
if [ -f "$CFGFILE" ]; then
sed -i "${VOID_KERNEL_LINENUMBER}s/$OLD_VERSION/$VERSION/" "$CFGFILE"
sed -i "${VOID_INITRD_LINENUMBER}s/$OLD_VERSION/$VERSION/" "$CFGFILE"
echo "Syslinux: Updated Kernel entry to $VERSION from $OLD_VERSION"
sed -i "${VOIDFALLBACK_KERNEL_LINENUMBER}s/$OLD_FALLBACKVERSION\
/$OLD_VERSION/" "$CFGFILE"
sed -i "${VOIDFALLBACK_INITRD_LINENUMBER}s/$OLD_FALLBACKVERSION\
/$OLD_VERSION/" "$CFGFILE"
echo "Syslinux: Updated Fallback Kernel entry to $OLD_VERSION from \
$OLD_FALLBACKVERSION"
fi
exit 0

54
srcpkgs/syslinux/files/kernel.d/syslinux.post-remove Executable file
View file

@ -0,0 +1,54 @@
#!/bin/sh
#
# Kernel hook for SYSLINUX.
#
# Arguments passed to this script: $1 pkgname, $2 version.
#
PKGNAME="$1"
VERSION="$2"
CFGFILE="$ROOTDIR/boot/syslinux/syslinux.cfg"
LABELVOID_LINENUMBER=$(
grep -nwm 1 'LABEL void' "$CFGFILE" |
awk '{print ($0+0)}')
LABELVOIDFALLBACK_LINENUMBER=$(
grep -nwm 1 'LABEL voidfallback' "$CFGFILE" |
awk '{print ($0+0)}')
VOID_KERNEL_LINENUMBER=$(
tail -n +"$LABELVOID_LINENUMBER" "$CFGFILE" |
grep -Enwm 1 'LINUX|KERNEL' |
awk '{print ($0+offset)}' offset="$((LABELVOID_LINENUMBER-1))")
VOID_INITRD_LINENUMBER=$(
tail -n +"$LABELVOID_LINENUMBER" "$CFGFILE" |
grep -nwim 1 'INITRD' |
awk '{print ($0+offset)}' offset="$((LABELVOID_LINENUMBER-1))")
VOIDFALLBACK_KERNEL_LINENUMBER=$(
tail -n +"$LABELVOIDFALLBACK_LINENUMBER" "$CFGFILE" |
grep -Enwm 1 'LINUX|KERNEL' |
awk '{print ($0+offset)}' offset="$((LABELVOIDFALLBACK_LINENUMBER-1))")
#only use LINUX|KERNEL line to parse old kernel version
OLD_VERSION=$(
sed -n "${VOID_KERNEL_LINENUMBER}p" "$CFGFILE" |
awk '{print $2}' |
awk 'BEGIN{FS="-"}{print $2}')
OLD_FALLBACKVERSION=$(
sed -n "${VOIDFALLBACK_KERNEL_LINENUMBER}p" "$CFGFILE" |
awk '{print $2}' |
awk 'BEGIN{FS="-"}{print $2}')
if [ -f "$CFGFILE" ]; then
if [ -f "$ROOTDIR/boot/vmlinuz-$OLD_VERSION" ]; then
#do nothing
exit 0
else
sed -i "${VOID_KERNEL_LINENUMBER}s/$OLD_VERSION/$OLD_FALLBACKVERSION/" \
"$CFGFILE"
sed -i "${VOID_INITRD_LINENUMBER}s/$OLD_VERSION/$OLD_FALLBACKVERSION/" \
"$CFGFILE"
echo "Syslinux: Revert Kernel entry $OLD_VERSION to $OLD_FALLBACKVERSION"
fi
fi
exit 0

7
srcpkgs/syslinux/template
View file

@ -1,7 +1,7 @@
# Template file for 'syslinux'
pkgname=syslinux
version=6.03
revision=4
revision=5
hostmakedepends="perl python nasm"
makedepends="gnu-efi-libs libuuid-devel"
short_desc="A boot loader for the Linux operating system"
@ -40,4 +40,9 @@ do_install() {
rm ${DESTDIR}/usr/share/syslinux/com32/*.a
# Remove keytab-lilo to prevent conflict with LILO
rm ${DESTDIR}/usr/bin/keytab-lilo
# Setup kernel hooks
vinstall ${FILESDIR}/kernel.d/syslinux.post-install 750 \
etc/kernel.d/post-install 50-syslinux
vinstall ${FILESDIR}/kernel.d/syslinux.post-remove 750 \
etc/kernel.d/post-remove 50-syslinux
}