How do I shrink a partition from the beginning? i.e. create empty space at the beginning of the block device?











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I have devices with SD cards, with several partitions. The first partitions on the card is typically not mounted, and have vfat filesystem.



What I want to achieve is, to create a 1MB free space just before the partition, so I'd like to not just to resize the fs and partition, but also to align them to the end of the available space. I know some GUI based tools do that, but I need to do this on a minimal embedded system, using scripts or ssh connections.










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  • That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
    – Pierre-Alain TORET
    yesterday















up vote
1
down vote

favorite
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I have devices with SD cards, with several partitions. The first partitions on the card is typically not mounted, and have vfat filesystem.



What I want to achieve is, to create a 1MB free space just before the partition, so I'd like to not just to resize the fs and partition, but also to align them to the end of the available space. I know some GUI based tools do that, but I need to do this on a minimal embedded system, using scripts or ssh connections.










share|improve this question






















  • That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
    – Pierre-Alain TORET
    yesterday













up vote
1
down vote

favorite
1









up vote
1
down vote

favorite
1






1





I have devices with SD cards, with several partitions. The first partitions on the card is typically not mounted, and have vfat filesystem.



What I want to achieve is, to create a 1MB free space just before the partition, so I'd like to not just to resize the fs and partition, but also to align them to the end of the available space. I know some GUI based tools do that, but I need to do this on a minimal embedded system, using scripts or ssh connections.










share|improve this question













I have devices with SD cards, with several partitions. The first partitions on the card is typically not mounted, and have vfat filesystem.



What I want to achieve is, to create a 1MB free space just before the partition, so I'd like to not just to resize the fs and partition, but also to align them to the end of the available space. I know some GUI based tools do that, but I need to do this on a minimal embedded system, using scripts or ssh connections.







partition embedded sd-card move-partition






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  • That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
    – Pierre-Alain TORET
    yesterday


















  • That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
    – Pierre-Alain TORET
    yesterday
















That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
– Pierre-Alain TORET
yesterday




That would be helpful to know how many partitions, which type of file systems, sd card size, partitions sizes etc..
– Pierre-Alain TORET
yesterday















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