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a27a5b |
Index: os-prober/common.sh
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a27a5b |
===================================================================
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a27a5b |
--- os-prober.orig/common.sh
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a27a5b |
+++ os-prober/common.sh
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a27a5b |
@@ -62,10 +62,14 @@ cache_progname() {
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a27a5b |
esac
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a27a5b |
}
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a27a5b |
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a27a5b |
-log() {
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a27a5b |
- cache_progname
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a27a5b |
- logger -t "$progname" "$@"
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a27a5b |
-}
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a27a5b |
+# fd_logger: bind value now, possibly after assigning default.
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a27a5b |
+eval '
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+ log() {
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a27a5b |
+ cache_progname
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a27a5b |
+ echo "$progname: $@" 1>&'${fd_logger:=9}'
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a27a5b |
+ }
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a27a5b |
+'
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a27a5b |
+export fd_logger # so subshells inherit current value by default
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a27a5b |
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a27a5b |
error() {
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a27a5b |
log "error: $@"
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a27a5b |
@@ -81,10 +85,14 @@ debug() {
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a27a5b |
fi
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a27a5b |
}
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a27a5b |
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a27a5b |
-result () {
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a27a5b |
- log "result:" "$@"
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a27a5b |
- echo "$@"
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a27a5b |
-}
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a27a5b |
+# fd_result: bind value now, possibly after assigning default.
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a27a5b |
+eval '
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+ result() {
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a27a5b |
+ log "result:" "$@"
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a27a5b |
+ echo "$@" 1>&'${fd_result:=1}'
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a27a5b |
+ }
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a27a5b |
+'
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a27a5b |
+export fd_result # so subshells inherit current value by default
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a27a5b |
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a27a5b |
# shim to make it easier to use os-prober outside d-i
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a27a5b |
if ! type mapdevfs >/dev/null 2>&1; then
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a27a5b |
Index: os-prober/linux-boot-prober
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a27a5b |
===================================================================
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a27a5b |
--- os-prober.orig/linux-boot-prober
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a27a5b |
+++ os-prober/linux-boot-prober
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a27a5b |
@@ -1,4 +1,12 @@
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a27a5b |
#!/bin/sh
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a27a5b |
+
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a27a5b |
+# dash shell does not have "{varname}>&1" feature that bash shell has
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a27a5b |
+# for auto-assignment of new filedescriptors.
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a27a5b |
+# It is cumbersome to write the 'eval' to use our own variables in redirections.
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a27a5b |
+# Therefore use fixed numbers.
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a27a5b |
+export fd_result=3 # file descriptor for external results
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a27a5b |
+export fd_logger=9 # file descriptor for input to logger
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a27a5b |
+
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a27a5b |
. /usr/share/os-prober/common.sh
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a27a5b |
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a27a5b |
set -e
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a27a5b |
@@ -19,6 +27,7 @@ bootuuid=
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a27a5b |
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a27a5b |
grep "^/dev/" /proc/mounts | parse_proc_mounts >"$OS_PROBER_TMP/mounted-map" || true
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a27a5b |
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a27a5b |
+( (
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a27a5b |
if [ -z "$1" ]; then
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a27a5b |
ERR=y
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a27a5b |
elif [ "$1" = btrfs -a -z "$2" ]; then
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a27a5b |
@@ -186,3 +195,5 @@ else
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a27a5b |
fi
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a27a5b |
fi
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a27a5b |
fi
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a27a5b |
+) 9>&1 | logger 1>&- # fd_logger
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a27a5b |
+) 3>&1 # fd_result
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a27a5b |
Index: os-prober/os-prober
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a27a5b |
===================================================================
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a27a5b |
--- os-prober.orig/os-prober
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a27a5b |
+++ os-prober/os-prober
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a27a5b |
@@ -1,7 +1,14 @@
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a27a5b |
#!/bin/sh
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a27a5b |
set -e
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a27a5b |
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a27a5b |
-. /usr/share/os-prober/common.sh
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a27a5b |
+# dash shell does not have "{varname}>&1" feature that bash shell has
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a27a5b |
+# for auto-assignment of new filedescriptors.
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a27a5b |
+# It is cumbersome to write the 'eval' to use our own variables in redirections.
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a27a5b |
+# Therefore use fixed numbers.
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a27a5b |
+export fd_result=3 # file descriptor for external results
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a27a5b |
+export fd_logger=9 # file descriptor for input to logger
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a27a5b |
+
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a27a5b |
+ . /usr/share/os-prober/common.sh
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a27a5b |
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a27a5b |
newns "$@"
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a27a5b |
require_tmpdir
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a27a5b |
@@ -136,6 +143,7 @@ fi
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a27a5b |
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a27a5b |
: >"$OS_PROBER_TMP/btrfs-vols"
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a27a5b |
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a27a5b |
+( (
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a27a5b |
for partition in $(partitions); do
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a27a5b |
if ! mapped="$(mapdevfs "$partition")"; then
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a27a5b |
log "Device '$partition' does not exist; skipping"
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a27a5b |
@@ -200,3 +208,5 @@ for partition in $(partitions); do
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a27a5b |
fi
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a27a5b |
fi
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a27a5b |
done
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a27a5b |
+) 9>&1 | logger 1>&- # fd_logger
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a27a5b |
+) 3>&1 # fd_result
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