On Fri, Apr 24, 2015 at 11:22 AM, Ankur Tank <[email protected]> wrote:
> Problem in short:
> eMMC partition's device files are not visible in /dev/ directory after
> partitiong using "sfdisk"
> HI ,
>
> I have put log of script here, any suggestions,
>
> + partition_emmc /dev/mmcblk0
> + DRIVE=/dev/mmcblk0
> + HEADS=255
> + SECTOR_SIZE=512
> + SECTORS_PER_TRACK=63
> + dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=108
> 108+0 records in
> 108+0 records out
> + sync
> + dd if=/dev/mmcblk0 of=/dev/null bs=1M count=108
> 108+0 records in
> 108+0 records out
> + sync
> + blockdev --flushbufs /dev/mmcblk0
> + + grepgrep+ bytes Disk
>
> fdisk -l /dev/mmcblk0
> + awk {print $5}
> + SIZE=3841982464
> + echo DISK SIZE - 3841982464 bytes
> DISK SIZE - 3841982464 bytes
> + echo 3841982464 255 / 63 / 512 / p
> + dc
> + CYLINDERS=467.094
> + echo CYLINDERS - 467.094
> CYLINDERS - 467.094
> + sfdisk -R /dev/mmcblk0
> BLKRRPART: Device or resource busy
> sfdisk: This disk is currently in use.
>
> +
> + [ 1 -ne 0 ]
> + + + grepawk /dev/mmcblk0 {print $3}
>
> mount
> + mntpoint=/media/mmcblk0p8
> /media/mmcblk0p6
> /media/mmcblk0p7
> /media/mmcblk0p5
> + echo unmounting /media/mmcblk0p8
> unmounting /media/mmcblk0p8
> + umount /media/mmcblk0p8
> + echo unmounting /media/mmcblk0p6
> unmounting /media/mmcblk0p6
> + umount /media/mmcblk0p6
> + echo unmounting /media/mmcblk0p7
> unmounting /media/mmcblk0p7
> + umount /media/mmcblk0p7
> + echo unmounting /media/mmcblk0p5
> unmounting /media/mmcblk0p5
> + umount /media/mmcblk0p5
> + sfdisk --force --in-order --Linux -H 255 -S 63 -C 467.094 /dev/mmcblk0 -uM
> Checking that no-one is using this disk right now ...
> OK
>
> Disk /dev/mmcblk0: 467 cylinders, 255 heads, 63 sectors/track
>
> sfdisk: ERROR: sector 184348 does not have an msdos signature
> sfdisk: /dev/mmcblk0: unrecognized partition table type
>
> Old situation:
> sfdisk: No partitions found
>
> New situation:
> Units = mebibytes of 1048576 bytes, blocks of 1024 bytes, counting from 0
>
> Device Boot Start End MiB #blocks Id System
> /dev/mmcblk0p1 * 0+ 31 32- 32767+ c W95 FAT32 (LBA)
> /dev/mmcblk0p2 32 231 200 204800 83 Linux
> /dev/mmcblk0p3 232 431 200 204800 83 Linux
> /dev/mmcblk0p4 432 3663 3232 3309568 5 Extended
> /dev/mmcblk0p5 432+ 531 100- 102399+ 83 Linux
> /dev/mmcblk0p6 532+ 591 60- 61439+ 83 Linux
> /dev/mmcblk0p7 592+ 791 200- 204799+ 83 Linux
> /dev/mmcblk0p8 792+ 2060 1269- 1299455+ 83 Linux
> /dev/mmcblk0p9 2061+ 3663 1603- 1641471+ 83 Linux
> Successfully wrote the new partition table
>
> Re-reading the partition table ...
>
> If you created or changed a DOS partition, /dev/foo7, say, then use dd(1)
> to zero the first 512 bytes: dd if=/dev/zero of=/dev/foo7 bs=512 count=1
> (See fdisk(8).)
> + sync
> + blockdev --flushbufs /dev/mmcblk0
> + partprobe
> Auto-mount of [/media/mmcblk0p5] successful
> Auto-mount of [/media/mmcblk0p6] successful
> Auto-mount of [/media/mmcblk0p7] successful
> Auto-mount of [/media/mmcblk0p8] successful
> Error: Error informing the kernel about modifications to partition
> /dev/mmcblk0p5 -- Device or r.
> Error: Failed to add partition 5 (Device or resource busy)
> + rm -rf /tmp/.a*
> + mdev -s
> mount: mounting /dev/mmcblk0p1 on /media/mmcblk0p1 failed: Invalid argument
> rm: can't remove '/tmp/.automount-mmcblk0p1': No such file or directory
> mount: mounting /dev/mmcblk0p2 on /media/mmcblk0p2 failed: Invalid argument
> rm: can't remove '/tmp/.automount-mmcblk0p2': No such file or directory
> mount: mounting /dev/mmcblk0p3 on /media/mmcblk0p3 failed: Invalid argument
> rm: can't remove '/tmp/.automount-mmcblk0p3': No such file or directory
> mount: mounting /dev/mmcblk0p4 on /media/mmcblk0p4 failed: Invalid argument
> rm: can't remove '/tmp/.automount-mmcblk0p4': No such file or directory
> rm: can't remove '/tmp/.automount-mmcblk0p7': No such file or directory
> rm: can't remove '/tmp/.automount-mmcblk0p8': No such file or directory
> + sync
> + blockdev --flushbufs /dev/mmcblk0
> + mount
> rootfs on / type rootfs (rw)
> 192.168.1.3:/nfsboot on / type nfs
> (rw,relatime,vers=2,rsize=4096,wsize=4096,namlen=255,hard,nol)
> proc on /proc type proc (rw,relatime)
> sysfs on /sys type sysfs (rw,relatime)
> tmpfs on /tmp type tmpfs (rw,relatime)
> none on /dev/pts type devpts (rw,relatime,mode=600)
> tmpfs on /dev/shm type tmpfs (rw,relatime,mode=777)
> tmpfs on /var/run type tmpfs (rw,relatime,mode=777)
> tmpfs on /var/spool/cron type tmpfs (rw,relatime,mode=755)
> tmpfs on /var/sftp type tmpfs (rw,relatime,mode=755)
> + sfdisk -R /dev/mmcblk0
> +
> + [ 0 -ne 0 ]
> + echo Nothing is mounted on /dev/mmcblk0
> Nothing is mounted on /dev/mmcblk0
> + RETRY=50
> + NO_OF_PARTITIONS=2
> + 2 != 10
> ./BAK_S99-flashfirmware: line 1: 2: not found
> + check_and_format_partition /dev/mmcblk0p2 rootfs
> + PARTITION=/dev/mmcblk0p2
> + LABEL=rootfs
> + MNTPNT=0
> + mount
> + grep /dev/mmcblk0p2
> + awk {print $3}
> + MNTPNT=
> + [ -n ]
> + [ -b /dev/mmcblk0p2 ]
> + mkfs.ext4 -L rootfs /dev/mmcblk0p2
> mke2fs 1.42.8 (20-Jun-2013)
> Auto-mount of [/media/mmcblk0p5] successful
> mkfs.ext4: No such file or directory while trying to determine hardware
> sector size
> + check_and_format_partition /dev/mmcblk0p3 rootfs2
> + PARTITION=/dev/mmcblk0p3
> + LABEL=rootfs2
> + MNTPNT=0
> + mount
> + grep+ awk /dev/mmcblk0p3
> {print $3}
> Auto-mount of [/media/mmcblk0p8] successful
> + MNTPNT=
> + [ -n ]
> + [ -b /dev/mmcblk0p3 ]
> + echo Cant find /dev/mmcblk0p3 partition
> Cant find /dev/mmcblk0p3 partition
> + check_and_format_partition /dev/mmcblk0p5 recovery_rootfs
> + PARTITION=/dev/mmcblk0p5
> + LABEL=recovery_rootfs
> + MNTPNT=0
> + mount
> + grep /dev/mmcblk0p5+ awk {print $3}
>
> + MNTPNT=/media/mmcblk0p5
> + [ -n /media/mmcblk0p5 ]
> + echo /dev/mmcblk0p5 is mounted on /media/mmcblk0p5
> /dev/mmcblk0p5 is mounted on /media/mmcblk0p5
> + [ -b /dev/mmcblk0p5 ]
> + echo Cant find /dev/mmcblk0p5 partition
> Cant find /dev/mmcblk0p5 partition
> + check_and_format_partition /dev/mmcblk0p6 database
> + PARTITION=/dev/mmcblk0p6
> + LABEL=database
> + MNTPNT=0
> + mount
> + grep /dev/mmcblk0p6
> + awk {print $3}
> Auto-mount of [/media/mmcblk0p7] successful
> + MNTPNT=
> + [ -n ]
> + [ -b /dev/mmcblk0p6 ]
> + mkfs.ext4 -L database /dev/mmcblk0p6
> Auto-mount of [/media/mmcblk0p6] successful
> mke2fs 1.42.8 (20-Jun-2013)
> /dev/mmcblk0p6 is mounted; will not make a filesystem here!
> + check_and_format_partition /dev/mmcblk0p7 firmware
> + PARTITION=/dev/mmcblk0p7
> + LABEL=firmware
> + MNTPNT=0
> + grep /dev/mmcblk0p7
> + mount
> + awk {print $3}
> + MNTPNT=/media/mmcblk0p7
> + [ -n /media/mmcblk0p7 ]
> + echo /dev/mmcblk0p7 is mounted on /media/mmcblk0p7
> /dev/mmcblk0p7 is mounted on /media/mmcblk0p7
> + [ -b /dev/mmcblk0p7 ]
> + mkfs.ext4 -L firmware /dev/mmcblk0p7
> mke2fs 1.42.8 (20-Jun-2013)
> /dev/mmcblk0p7 is mounted; will not make a filesystem here!
> + check_and_format_partition /dev/mmcblk0p8 logging
> + PARTITION=/dev/mmcblk0p8
> + LABEL=logging
> + MNTPNT=0
> + grep /dev/mmcblk0p8
> + awk {print $3}
> + mount
> + MNTPNT=/media/mmcblk0p8
> + [ -n /media/mmcblk0p8 ]
> + echo /dev/mmcblk0p8 is mounted on /media/mmcblk0p8
> /dev/mmcblk0p8 is mounted on /media/mmcblk0p8
> + [ -b /dev/mmcblk0p8 ]
> + echo Cant find /dev/mmcblk0p8 partition
> Cant find /dev/mmcblk0p8 partition
> + sed -r s/://g
> + cat /sys/class/net/eth0/address
> + MACADDRESS=7c669d19cce2
> + BASE_MOUNT_POINT=/mnt/7c669d19cce2
> + ROOTFS_MOUNT=/mnt/7c669d19cce2/rootfs
> + ROOTFS2_MOUNT=/mnt/7c669d19cce2/rootfs2
> + ROOTFS_RECOVERY_MOUNT=/mnt/7c669d19cce2/recovery_rootfs
> + DB_MOUNT=/mnt/7c669d19cce2/database
> + FIRMWARE_MOUNT=/mnt/7c669d19cce2/firmware
> + LOGGING_MOUNT=/mnt/7c669d19cce2/logging
> + echoAndLog mount all the partitions
> + echo mount all the partitions
> mount all the partitions
> + logger -p 5 -t ./BAK_S99-flashfirmware mount all the partitions
> + [ ! -d /mnt/7c669d19cce2/rootfs ]
> + [ ! -d /mnt/7c669d19cce2/rootfs2 ]
> + [ ! -d /mnt/7c669d19cce2/recovery_rootfs ]
> + [ ! -d /mnt/7c669d19cce2/database ]
> + RETRY=50
> + [ 50 -ne 0 ]
> + [ ! -b /dev/mmcblk0p2 ]
> + echo ....Waiting till /dev/mmcblk0p2 appears retry=50
> ....Waiting till /dev/mmcblk0p2 appears retry=50
>
> Anything fishy ?? If same partitioning command i run from command prompt it
> works but not from script do you suggestion anything ?
>
> Script looks as show below..
>
> DRIVE="/dev/mmcblk0"
> RFS1_PARTITION=${DRIVE}p2
> RFS2_PARTITION=${DRIVE}p3
> RECOVERYRFS_PARTITION=${DRIVE}p5
> DATABASE_PARTITION=${DRIVE}p6
> FIRMWARE_PARTITION=${DRIVE}p7
> LOGGING_PARTITION=${DRIVE}p8
>
> partition_emmc()
> {
> DRIVE=$1
> HEADS=255
> SECTOR_SIZE=512
> SECTORS_PER_TRACK=63
>
> #Clear the first 512KB of the disk to clear MBR
> dd if=/dev/zero of=${DRIVE} bs=1M count=108
> sync
> dd if=${DRIVE} of=/dev/null bs=1M count=108
> sync
> blockdev --flushbufs ${DRIVE}
>
> #Get the size of the disk
> SIZE=$(fdisk -l $DRIVE | grep "Disk" | grep bytes | awk '{print
> $5}')
> echo "DISK SIZE - $SIZE bytes"
>
> #calculate the no of cylinders in the disk
> CYLINDERS=$(echo "$SIZE $HEADS / $SECTORS_PER_TRACK / $SECTOR_SIZE /
> p" | dc )
> echo "CYLINDERS - $CYLINDERS"
>
> #Check if any of the partition is mounted, umount it if mounted.
> $(sfdisk -R ${DRIVE})
> if [ $? -ne 0 ];then
> mntpoint=$(mount | grep ${DRIVE} | awk '{print $3}')
> for i in $mntpoint ; do
> echo "unmounting $i"
> umount $i
> done
> else
> echo "Nothing is mounted on ${DRIVE}"
> fi
>
> #Partition drive
> # sfdisk --force --in-order --Linux -H 255 -S 63 -C $CYLINDERS
> ${DRIVE} -uM <<-__EOF__
> sfdisk --force --in-order --Linux -H 255 -S 63 -C 467 ${DRIVE} -uM
> <<-__EOF__
Stop with all the cylinders crap, it's not 2009 anymore and we "fixed"
x-loader/u-boot spl, with the boot from "63" location "years" ago...
> ,32,C,*
1,32,C,* (now you have a 1Mb hole, which will work with
the bootloader..)
> ,200,L
> ,200,L
> ,,E
> ,100,L
> ,60,L
> ,200,L
> ,1269,L
> ,,,-
> __EOF__
>
> }
>
> # arg1 = partition
> # arg2 = label
> check_and_format_partition()
> {
> PARTITION=$1
> LABEL=$2
> MNTPNT=0
> MNTPNT=$(mount | grep $PARTITION | awk '{print $3}')
> if [ -n "$MNTPNT" ]; then
> echo "$PARTITION is mounted on $MNTPNT"
> fi
> if [ -b $PARTITION ]; then
> mkfs.ext4 -L $LABEL $PARTITION
> #TODO : Find correct tunning parameter and set it.
> #tune2fs
> else
> echo "Cant find $PARTITION partition"
> fi
> }
>
> #Partition the eMMC
> partition_emmc $DRIVE
>
> sync
> blockdev --flushbufs $DRIVE
>
> partprobe
> rm -rf /tmp/.a*
>
> #Trigger the creation of the device files
> mdev -s
> sync
> blockdev --flushbufs $DRIVE
>
> mount
>
> $(sfdisk -R ${DRIVE})
> if [ $? -ne 0 ]; then
> mntpoint=$(mount | grep ${DRIVE} | awk '{print $3}')
> for i in $mntpoint ; do
> echo "unmounting $i"
> umount $i
> done
> else
> echo "Nothing is mounted on ${DRIVE}"
> fi
>
> #Wait till mmcblk0pX partitions are available.
> RETRY=50
> NO_OF_PARTITIONS=2
> while (( $NO_OF_PARTITIONS != 10 )); do
>
> while (( [ $RETRY -ne 0 ] && [ ! -b "${DRIVE}p$i" ] )); do
> echo "....Waiting till $RFS1_PARTITION appears"
> RETRY=`expr $RETRY - 1`
> sleep 1
> done
>
> if [ $RETRY -eq 0 ];then
> echo "Error..Device files are not present"
> exit 1;
> fi
> NO_OF_PARTITIONS=`expr NO_OF_PARTITIONS + 1`
> done
>
> #Format the partitions
> check_and_format_partition $RFS1_PARTITION $RFS_STRING
> check_and_format_partition $RFS2_PARTITION $RFS2_STRING
> check_and_format_partition $RECOVERYRFS_PARTITION $RFS_RECOVERY_STRING
> check_and_format_partition $DATABASE_PARTITION $DATABASE_STRING
> check_and_format_partition $FIRMWARE_PARTITION $FIRMWARE_STRING
> check_and_format_partition $LOGGING_PARTITION $LOGGING_STRING
>
> MACADDRESS=`cat /sys/class/net/eth0/address | sed -r 's/://g'`
> BASE_MOUNT_POINT=/mnt/$MACADDRESS
> ROOTFS_MOUNT=$BASE_MOUNT_POINT/rootfs
> ROOTFS2_MOUNT=$BASE_MOUNT_POINT/rootfs2
> ROOTFS_RECOVERY_MOUNT=$BASE_MOUNT_POINT/recovery_rootfs
> DB_MOUNT=$BASE_MOUNT_POINT/database
> FIRMWARE_MOUNT=$BASE_MOUNT_POINT/firmware
> LOGGING_MOUNT=$BASE_MOUNT_POINT/logging
>
> echoAndLog "mount all the partitions"
> #Create mount point if it doesn't exist.
> if [ ! -d "$ROOTFS_MOUNT" ]; then
> mkdir -p $ROOTFS_MOUNT
> fi
> if [ ! -d "$ROOTFS2_MOUNT" ]; then
> mkdir -p $ROOTFS2_MOUNT
> fi
> if [ ! -d "$ROOTFS_RECOVERY_MOUNT" ]; then
> mkdir -p $ROOTFS_RECOVERY_MOUNT
> fi
> if [ ! -d "$DB_MOUNT" ]; then
> mkdir -p $DB_MOUNT
> fi
>
>
>
> }
>
Regards,
--
Robert Nelson
https://rcn-ee.com/
--
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