Ytdyklly

I updated to Ubuntu 15.10 but it causes a huge issue for me: sfdisk doesn't work anymore.

I really need sfdisk to build partitions on SD card for my embedded Linux but it seems that options have changed.

Here is my script:

CARD_DEV=$1



unset LANG



umount ${CARD_DEV}* >& /dev/null



if [ -b "$CARD_DEV" ] ; then

    echo "*************** Formatting SD card... ***************"

    dd if=/dev/zero of=$CARD_DEV bs=1024 count=1024

    SIZE=`fdisk -l $CARD_DEV | grep Disk | awk '{print $5}'`

    echo DISK SIZE - $SIZE bytes

    CYLINDERS=`echo $SIZE/255/63/512 | bc`

    echo CYLINDERS - $CYLINDERS

    {

        echo 1,9,0x0C,*

        echo 10,,,-

    } | sfdisk -D -H 255 -S 63 -C $CYLINDERS $CARD_DEV

    mkfs.vfat -F 32 -n "boot" ${CARD_DEV}1

    mke2fs -j -L "filesystem" ${CARD_DEV}2

fi

And the output error:

sfdisk: invalid option -- 'D'



 sfdisk [options] <dev> [[-N] <part>]

 sfdisk [options] <command>



Display or manipulate a disk partition table.



Commands:

 -A, --activate <dev> [<part> ...] list or set bootable MBR partitions

 -d, --dump <dev>                  dump partition table (usable for later input)

 -g, --show-geometry [<dev> ...]   list geometry of all or specified devices

 -l, --list [<dev> ...]            list partitions of each device

 -s, --show-size [<dev> ...]       list sizes of all or specified devices

 -T, --list-types                  print the recognized types (see -X)

 -V, --verify                      test whether partitions seem correct



 --part-label <dev> <part> [<str>] print or change partition label

 --part-type <dev> <part> [<type>] print or change partition type

 --part-uuid <dev> <part> [<uuid>] print or change partition uuid

 --part-attrs <dev> <part> [<str>] print or change partition attributes



 <dev>                     device (usually disk) path

 <part>                    partition number

 <type>                    partition type, GUID for GPT, hex for MBR



Options:

 -a, --append              append partitions to existing partition table

 -b, --backup              backup partition table sectors (see -O)

     --bytes               print SIZE in bytes rather than in human readable format

 -f, --force               disable all consistency checking

     --color[=<when>]      colorize output (auto, always or never)

                             colors disabled by default

 -N, --partno <num>        specify partition number

 -n, --no-act              do everything except write to device

     --no-reread           do not check whether the device is in use

 -O, --backup-file <path>  override default backup file name

 -o, --output <list>       output columns

 -q, --quiet               suppress extra info messages

 -X, --label <name>        specify label type (dos, gpt, ...)

 -Y, --label-nested <name> specify nested label type (dos, bsd)



 -L, --Linux               deprecated, only for backward compatibility

 -u, --unit S              deprecated, only sector unit is supported



 -h, --help     display this help and exit

 -v, --version  output version information and exit



Available columns (for -o):

 gpt: Device Start End Sectors Size Type Type-UUID Attrs Name UUID

 dos: Device Start End Sectors Cylinders Size Type Id Attrs Boot End-C/H/S

      Start-C/H/S

 bsd: Slice Start End Sectors Cylinders Size Type Bsize Cpg Fsize

 sgi: Device Start End Sectors Cylinders Size Type Id Attrs

 sun: Device Start End Sectors Cylinders Size Type Id Flags



For more details see sfdisk(8).

Version:

sfdisk from util-linux 2.26.2

This seems to be a working version of the command that works in both old and new sfdisk versions.

# p1 74MB FAT

# p2 Remainder Linux

sfdisk -u S -L $CARD_DEV << EOF

63,144522,0x0C,*

160650,,,-

EOF

"-u S" sets the units to sectors which is default in the new version but required to be set in old version

"-L" keeps the old version from erroring out when creating the partitions.

source: https://e2e.ti.com/support/arm/sitara_arm/f/791/t/509510