Gatis Paeglis
4e81548447
ostree-grub-generator can be used to customize the generated grub.cfg file. Compile time decision ostree-grub-generator vs grub2-mkconfig can be overwritten with the OSTREE_GRUB2_EXEC envvar - useful for auto tests and OS installers. Why this alternative approach: 1) The current approach is less flexible than using a custom 'ostree-grub-generator' script. Each system can adjust this script for its needs, instead of using the hardcoded values from ostree-bootloader-grub2.c. 2) Too much overhead on embedded to generate grub.cfg via /etc/grub.d/ configuration files. It is still possible to do so, even with this patch applied. No need to install grub2 package on a target device. 3) The grub2-mkconfig code path has other issues: https://bugzilla.gnome.org/show_bug.cgi?id=761180 Task: https://bugzilla.gnome.org/show_bug.cgi?id=762220 Closes: #228 Approved by: cgwalters
48 lines
1.6 KiB
Bash
48 lines
1.6 KiB
Bash
#!/bin/sh
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#
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# Copyright (C) 2014 Colin Walters <walters@verbum.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published
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# by the Free Software Foundation; either version 2 of the licence or (at
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# your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General
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# Public License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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# Boston, MA 02111-1307, USA.
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# Gracefully exit if ostree is not installed
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if ! which ostree >/dev/null 2>/dev/null; then
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exit 0
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fi
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# Make sure we're in the right environment
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if ! test -n "${GRUB_DEVICE}"; then
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echo "This script must be run as a child of grub2-mkconfig" 1>&2
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exit 1
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fi
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set -e
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# Pick up stuff from grub's helper that we want to inject into our
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# generated bootloader configuration. Yes, this is pretty awful, but
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# it's a lot better than reimplementing the config-generating bits of
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# OSTree in shell script.
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. /usr/share/grub/grub-mkconfig_lib
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DEVICE=${GRUB_DEVICE_BOOT:-${GRUB_DEVICE}}
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GRUB2_BOOT_DEVICE_ID="$(grub_get_device_id ${DEVICE})"
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export GRUB2_BOOT_DEVICE_ID
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GRUB2_PREPARE_ROOT_CACHE="$(prepare_grub_to_access_device ${DEVICE})"
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export GRUB2_PREPARE_ROOT_CACHE
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exec ostree admin instutil grub2-generate
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