diff options
Diffstat (limited to 'installer/lib')
| -rw-r--r-- | installer/lib/common.sh | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/installer/lib/common.sh b/installer/lib/common.sh index 8193b19..98220fa 100644 --- a/installer/lib/common.sh +++ b/installer/lib/common.sh @@ -236,6 +236,30 @@ install_dropin() { cat > "${dir}/${dropin_name}.conf" } +# Read efibootmgr output from stdin and echo the boot number of the +# first entry whose label contains $1. Returns 1 (with empty output) +# if the label is empty, no entry matches, or the matched line has no +# Boot[0-9A-F]+ prefix. The empty-label guard is important: an empty +# string would match every line, and a line like "BootCurrent: 0001" +# would falsely satisfy the Boot[hex]+ regex (capturing "C"). +parse_efibootmgr_entry() { + local label="$1" + [[ -z "$label" ]] && return 1 + local line + line=$(grep -F -m 1 "$label") || return 1 + [[ "$line" =~ Boot([0-9A-Fa-f]+) ]] || return 1 + echo "${BASH_REMATCH[1]}" +} + +# Read efibootmgr output from stdin and echo the comma-separated boot +# numbers from the BootOrder line, with whitespace stripped. Returns 1 +# (with empty output) if no BootOrder line is present. +parse_efibootmgr_bootorder() { + local line + line=$(grep "^BootOrder:") || return 1 + echo "${line#BootOrder:}" | tr -d ' ' +} + # List available disks (not in use) list_available_disks() { local disks=() |