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Modify "grub btrfs dirname" variable. (#113)

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* Modify "GRUB_BTRFS_DIRNAME"
  * Full path to Grub folder is now configurable (/boot is no longer hard coded).
  * Detection of the boot partition is now based on the location of the Grub folder.
  * Warning [see](https://github.com/Antynea/grub-btrfs/pull/113#issuecomment-705916729)
This commit is contained in:
Antynea
2020-10-09 15:50:02 +02:00
committed by GitHub
parent fa65c3d6d9
commit 3c5e741641
3 changed files with 11 additions and 12 deletions
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12
41_snapshots-btrfs
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@@ -66,7 +66,7 @@ btrfssubvolsort=(--sort="${GRUB_BTRFS_SUBVOLUME_SORT:-"-rootid"}")
## Snapper's config name
snapper_config=${GRUB_BTRFS_SNAPPER_CONFIG:-"root"}
## Customize GRUB directory
grub_directory=${GRUB_BTRFS_DIRNAME:-"grub"}
grub_directory=${GRUB_BTRFS_DIRNAME:-"/boot/grub"}
## Password protection management for submenu
# Protection support for submenu (--unrestricted)
case "${GRUB_BTRFS_DISABLE_PROTECTION_SUBMENU:-"false"}" in
@@ -81,13 +81,13 @@ fi
### variables script
## Probe info "Boot partition"
# Boot device
boot_device=$(${grub_probe} --target=device /boot)
boot_device=$(${grub_probe} --target=device ${grub_directory})
# hints string
boot_hs=$(${grub_probe} --device ${boot_device} --target="hints_string" 2>/dev/null)
# UUID of the boot partition
boot_uuid=$(${grub_probe} --device ${boot_device} --target="fs_uuid" 2>/dev/null)
# Type filesystem of boot partition
boot_fs=$(${grub_probe} --target="fs" /boot 2>/dev/null)
boot_fs=$(${grub_probe} --target="fs" ${grub_directory} 2>/dev/null)
## Probe info "Root partition"
# Type filesystem of root partition
root_fs=$(${grub_probe} --target="fs" / 2>/dev/null)
@@ -138,7 +138,7 @@ test_btrfs()
## Create entry
entry()
{
echo "$@" >> "/boot/$grub_directory/grub-btrfs.cfg"
echo "$@" >> "$grub_directory/grub-btrfs.cfg"
}
## menu entries
@@ -496,8 +496,8 @@ printf "Detecting snapshots ...\n" >&2 ;
# Only support btrfs snapshots
test_btrfs
# Delete existing config
#rm -f --preserve-root "/boot/$grub_directory/grub-btrfs.cfg"
> "/boot/$grub_directory/grub-btrfs.cfg"
#rm -f --preserve-root "$grub_directory/grub-btrfs.cfg"
> "$grub_directory/grub-btrfs.cfg"
# Create mount point then mounting
[[ ! -d $gbgmp ]] && mkdir -p $gbgmp
mount -o subvolid=5 /dev/disk/by-uuid/$root_uuid $gbgmp/

9
config
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@@ -73,11 +73,10 @@ GRUB_BTRFS_IGNORE_PREFIX_PATH=("var/lib/docker" "@var/lib/docker" "@/var/lib/doc
# Default: "false"
#GRUB_BTRFS_OVERRIDE_BOOT_PARTITION_DETECTION="true"
# GRUB folder location, by default "/boot/" is hardcode.
# Might be grub2 on some systems ex. /boot/grub2/...
# "grub" means "/boot/grub/"
# Default: "grub"
#GRUB_BTRFS_DIRNAME="grub2"
# GRUB folder location.
# Might be grub2 on some systems.
# Default: "/boot/grub"
#GRUB_BTRFS_DIRNAME="/boot/grub2"
# Name/path of grub-mkconfig, use by "grub-btrfs.service"
# Might be 'grub2-mkconfig' on some systems

2
grub-btrfs.service
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@@ -8,4 +8,4 @@ Environment="PATH=/sbin:/bin:/usr/sbin:/usr/bin"
# Load environment variables from the configuration
EnvironmentFile=/etc/default/grub-btrfs/config
# Regenerate just '/boot/grub/grub-btrfs.cfg' if it exists and is not empty, else regenerate the whole grub menu
ExecStart=/bin/bash -c 'if [ -s "/boot/${GRUB_BTRFS_DIRNAME:-grub}/grub-btrfs.cfg" ]; then /etc/grub.d/41_snapshots-btrfs; else ${GRUB_BTRFS_MKCONFIG:-/usr/bin/grub-mkconfig} -o /boot/${GRUB_BTRFS_DIRNAME:-grub}/grub.cfg; fi'
ExecStart=/bin/bash -c 'if [ -s "${GRUB_BTRFS_DIRNAME:-/boot/grub}/grub-btrfs.cfg" ]; then /etc/grub.d/41_snapshots-btrfs; else ${GRUB_BTRFS_MKCONFIG:-/usr/bin/grub-mkconfig} -o ${GRUB_BTRFS_DIRNAME:-/boot/grub}/grub.cfg; fi'