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-rwxr-xr-xarchiso/mkarchiso28
1 files changed, 15 insertions, 13 deletions
diff --git a/archiso/mkarchiso b/archiso/mkarchiso
index 0ffe0ca..a543280 100755
--- a/archiso/mkarchiso
+++ b/archiso/mkarchiso
@@ -558,22 +558,24 @@ _make_common_bootmode_grub_copy_to_isofs() {
# Prepare GRUB configuration files
_make_common_bootmode_grub_cfg(){
- local _cfg uuid_search_filename
-
- # Create a .uuid file and place it in /.disk/ on ISO 9660 to provide a way for GRUB to search for the volume
- uuid_search_filename="$(uuidgen --sha1 --namespace 93a870ff-8565-4cf3-a67b-f47299271a96 \
- --name "${SOURCE_DATE_EPOCH} disk search UUID")"
- install -d -m 0755 -- "${isofs_dir}/.disk"
- : > "${isofs_dir}/.disk/${uuid_search_filename}.uuid"
+ local _cfg archiso_uuid search_filename
install -d -- "${work_dir}/grub"
+ # Precalculate the ISO's modification date in UTC, i.e. its "UUID"
+ TZ=UTC printf -v archiso_uuid '%(%F-%H-%M-%S-00)T' "$SOURCE_DATE_EPOCH"
+ # Create a /boot/grub/YYYY-mm-dd-HH-MM-SS-00.uuid file on ISO 9660. GRUB will search for it to find the ISO
+ # volume. This is similar to what grub-mkrescue does, except it places the file in /.disk/, but we opt to use a
+ # directory that does not start with a dot to avoid it being accidentally missed when copying the ISO's contents.
+ : > "${work_dir}/grub/${archiso_uuid}.uuid"
+ search_filename="/boot/grub/${archiso_uuid}.uuid"
+
# Fill GRUB configuration files
for _cfg in "${profile}/grub/"*'.cfg'; do
sed "s|%ARCHISO_LABEL%|${iso_label}|g;
s|%INSTALL_DIR%|${install_dir}|g;
s|%ARCH%|${arch}|g;
- s|%UUID_SEARCH_FILENAME%|${uuid_search_filename}|g" \
+ s|%ARCHISO_SEARCH_FILENAME%|${search_filename}|g" \
"${_cfg}" > "${work_dir}/grub/${_cfg##*/}"
done
@@ -596,13 +598,13 @@ if [ -z "${ARCHISO_HINT}" ]; then
fi
# Search for the ISO volume
-if search --no-floppy --set=archiso_device --file '/.disk/%UUID_SEARCH_FILENAME%.uuid' --hint "${ARCHISO_HINT}"; then
+if search --no-floppy --set=archiso_device --file '%ARCHISO_SEARCH_FILENAME%' --hint "${ARCHISO_HINT}"; then
set ARCHISO_HINT="${archiso_device}"
if probe --set ARCHISO_UUID --fs-uuid "${ARCHISO_HINT}"; then
export ARCHISO_UUID
fi
else
- echo "Could not find a volume with a '/.disk/%UUID_SEARCH_FILENAME%.uuid' file on it!"
+ echo "Could not find a volume with a '%ARCHISO_SEARCH_FILENAME%' file on it!"
fi
# Load grub.cfg
@@ -616,18 +618,18 @@ else
echo "File '(${ARCHISO_HINT})/boot/grub/grub.cfg' not found!"
fi
EOF
- grubembedcfg="${grubembedcfg//'%UUID_SEARCH_FILENAME%'/"${uuid_search_filename}"}"
+ grubembedcfg="${grubembedcfg//'%ARCHISO_SEARCH_FILENAME%'/"${search_filename}"}"
printf '%s\n' "$grubembedcfg" > "${work_dir}/grub-embed.cfg"
# Write grubenv
printf '%.1024s' \
- "$(printf '# GRUB Environment Block\nNAME=%s\nVERSION=%s\nARCHISO_LABEL=%s\nINSTALL_DIR=%s\nARCH=%s\nUUID_SEARCH_FILENAME=%s\n%s' \
+ "$(printf '# GRUB Environment Block\nNAME=%s\nVERSION=%s\nARCHISO_LABEL=%s\nINSTALL_DIR=%s\nARCH=%s\nARCHISO_SEARCH_FILENAME=%s\n%s' \
"${iso_name}" \
"${iso_version}" \
"${iso_label}" \
"${install_dir}" \
"${arch}" \
- "${uuid_search_filename}" \
+ "${search_filename}" \
"$(printf '%0.1s' "#"{1..1024})")" \
> "${work_dir}/grub/grubenv"
}