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| author | Natanael Copa <ncopa@alpinelinux.org> | 2012-05-04 07:15:45 +0000 |
|---|---|---|
| committer | Natanael Copa <ncopa@alpinelinux.org> | 2012-05-04 07:18:12 +0000 |
| commit | 9221065710635d8a5436807c23a6e201cd583cea (patch) | |
| tree | 5eb9d908a7ddb52a384310b4e9ab992322a6abbb | |
| parent | aa172c5a08d6bf9cac0e4e0e1dc3f0f5b455d328 (diff) | |
| download | alpine-conf-9221065710635d8a5436807c23a6e201cd583cea.tar.bz2 alpine-conf-9221065710635d8a5436807c23a6e201cd583cea.tar.xz | |
setup-bootable: remount as read/write if needed
| -rw-r--r-- | setup-bootable.in | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/setup-bootable.in b/setup-bootable.in index a841ddc..503a47b 100644 --- a/setup-bootable.in +++ b/setup-bootable.in @@ -4,10 +4,14 @@ prog=${0##*/} version=@VERSION@ cleanup() { + local i= cd / if [ -n "$uninstalls" ]; then apk del -q syslinux fi + for i in $read_only_mounts; do + mount -o remount,ro "$i" + done if [ -n "$umounts" ]; then umount $umounts fi @@ -50,6 +54,14 @@ vecho() { echo "$@" } +# check if given dir is read-only +is_read_only() { + local tmpfile=$(mktemp -p "$1" 2>/dev/null) + [ -z "$tmpfile" ] && return 0 + rm -f "$tmpfile" + return 1 +} + usage() { cat <<__EOF__ $prog $version @@ -123,6 +135,13 @@ elif [ -b "$dest" ]; then umounts="$umounts $destdir" fi +# remount as rw if needed +if is_read_only "$destdir"; then + vecho "Remounting $destdir as read/write" + mount -o remount,rw "$dest" || die "Failed to remount $destdir as rw" + read_only_mounts="$read_only_mounts $destdir" +fi + # fish out label, uuid and type eval $(blkid $dest | cut -d: -f2-) |