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netboot: Format mk-s390image
Command line used: $ shfmt --space-redirects --case-indent --simplify --func-next-line --write mk-s390image Reviewed-by: Jan Höppner <hoeppner@linux.ibm.com> Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com> Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
committed by
Jan Höppner
Jan Höppner
parent
339b69cf3b
commit
76b7928592
@@ -38,12 +38,10 @@ success=no
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# shellcheck disable=SC2317
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cleanup()
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{
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if [ -n "$binval" ]
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then
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if [ -n "$binval" ]; then
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rm -f -- "$binval"
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fi
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if [ -n "$image" ] && [ "$success" = no ]
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then
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if [ -n "$image" ] && [ "$success" = no ]; then
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rm -f -- "$image"
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fi
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}
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@@ -52,25 +50,25 @@ trap cleanup EXIT
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# Usage
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usage()
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{
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cat <<-EOF
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Usage: $cmd KERNEL BOOT_IMAGE [-r RAMDISK] [-p PARMFILE]
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cat <<- EOF
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Usage: $cmd KERNEL BOOT_IMAGE [-r RAMDISK] [-p PARMFILE]
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Build an s390 image BOOT_IMAGE suitable for CD/tape/network boot or as a
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KVM firmware image using a stripped Linux kernel file KERNEL.
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Build an s390 image BOOT_IMAGE suitable for CD/tape/network boot or as a
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KVM firmware image using a stripped Linux kernel file KERNEL.
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OPTIONS
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-p Use PARMFILE with kernel parameters in the image
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-r Include RAMDISK in the image
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-h Print this help, then exit
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-v Print version information, then exit
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EOF
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OPTIONS
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-p Use PARMFILE with kernel parameters in the image
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-r Include RAMDISK in the image
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-h Print this help, then exit
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-v Print version information, then exit
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EOF
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}
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printversion()
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{
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cat <<-EOD
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$cmd: version %S390_TOOLS_VERSION%
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Copyright IBM Corp. 2017
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cat <<- EOD
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$cmd: version %S390_TOOLS_VERSION%
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Copyright IBM Corp. 2017
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EOD
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}
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@@ -80,8 +78,7 @@ dec2be64()
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local num=$1
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local b
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local i
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for i in $(seq 1 8)
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do
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for i in $(seq 1 8); do
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b="\\x$(printf '%x' "$((num % 256))")$b"
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num=$((num / 256)) || true
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done
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@@ -116,21 +113,17 @@ dobuild()
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local ramdisk_offset
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local parmfile_size
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# check whether all specified files exist
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for i in $kernel $ramdisk $parmfile
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do
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if [ ! -f "$i" ]
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then
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echo "$cmd: File $i not found" >&2
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return 1
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fi
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if [ ! -r "$i" ]
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then
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echo "$cmd: File $i cannot be read, no read permission" >&2
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return 1
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fi
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for i in $kernel $ramdisk $parmfile; do
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if [ ! -f "$i" ]; then
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echo "$cmd: File $i not found" >&2
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return 1
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fi
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if [ ! -r "$i" ]; then
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echo "$cmd: File $i cannot be read, no read permission" >&2
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return 1
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fi
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done
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if ! file -b -- "$(readlink -f -- "$kernel")" | grep "Linux S390" > /dev/null
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then
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if ! file -b -- "$(readlink -f -- "$kernel")" | grep "Linux S390" > /dev/null; then
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echo "$cmd: Unrecognized file format for $kernel" >&2
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return 1
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fi
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@@ -143,8 +136,7 @@ dobuild()
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dd if="$kernel" of="$image" bs=4096 conv=sync status=none
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# append ramdisk if specified
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if [ "$ramdisk" != "" ]
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then
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if [ "$ramdisk" != "" ]; then
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ramdisk_size=$(du -b -L -- "$ramdisk" | cut -f1)
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# shellcheck disable=SC2034
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kernel_size=$(du -b -L -- "$kernel" | cut -f1)
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@@ -160,17 +152,15 @@ dobuild()
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fi
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# set cmdline
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if [ "$parmfile" != "" ]
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then
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if [ "$parmfile" != "" ]; then
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max_parmfile_size=$(max_kernel_cmdline_size "$kernel")
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parmfile_size=$(du -b -L -- "$parmfile" | cut -f1)
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if (( parmfile_size <= max_parmfile_size ));
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then
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if ((parmfile_size <= max_parmfile_size)); then
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# Clear any previous parameters
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dd seek=$OFFS_COMMANDLINE_BYTES bs=1 count="$max_parmfile_size" \
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if=/dev/zero of="$image" conv=notrunc status=none
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if=/dev/zero of="$image" conv=notrunc status=none
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dd seek=$OFFS_COMMANDLINE_BYTES bs=1 count="$parmfile_size" \
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if="$parmfile" of="$image" conv=notrunc status=none
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if="$parmfile" of="$image" conv=notrunc status=none
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else
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echo "$cmd: Size $parmfile_size of $parmfile exceeds command line limit of $max_parmfile_size bytes" >&2
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return 1
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@@ -183,25 +173,40 @@ dobuild()
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# check args and build
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# shellcheck disable=SC2086,SC2048
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if args=$(getopt "r:p:hv" $*)
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then
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if args=$(getopt "r:p:hv" $*); then
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# shellcheck disable=SC2086
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set -- $args
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while [ "$1" != "" ]
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do
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while [ "$1" != "" ]; do
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case $1 in
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-r) ramdisk=$2; shift 2;;
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-p) parmfile=$2; shift 2;;
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-h) usage; exit 0;;
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-v) printversion; exit 0;;
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--) shift; break;;
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*) echo "$cmd: Unexpected argument $1, exiting..." >&2; exit 1;;
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-r)
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ramdisk=$2
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shift 2
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;;
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-p)
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parmfile=$2
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shift 2
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;;
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-h)
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usage
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exit 0
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;;
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-v)
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printversion
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exit 0
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;;
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--)
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shift
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break
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;;
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*)
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echo "$cmd: Unexpected argument $1, exiting..." >&2
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exit 1
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;;
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esac
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done
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fi
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if [ $# = 2 ]
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then
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if [ $# = 2 ]; then
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kernel=$1
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image=$2
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dobuild
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