Thread: swapon failed: Invalid argument

hi there,
i'm trying swap file on sdcard, i'm getting error

code:

swapon failed: invalid argument

here sequence produce error

code:

root@eee:/media/sd1# dd if=/dev/zero of=/media/sd1/hibernate.img bs=1024k count=200  200+0 records in  200+0 records out  209715200 bytes (210 mb) copied, 18.7177 s, 11.2 mb/s  root@eee:/media/sd1# mkswap /media/sd1/hibernate.img   mkswap: /media/sd1/hibernate.img: warning: don't erase bootbits sectors          on whole disk. use -f force.  setting swapspace version 1, size = 204796 kib  no label, uuid=81c367ac-5301-4af6-8681-40e2297b6d5c  root@eee:/media/sd1# swapon /media/sd1/hibernate.img   swapon: /media/sd1/hibernate.img: swapon failed: invalid argument

here mount part

code:

/dev/sdb1 on /media/sd1 type btrfs (rw,nosuid,nodev,compress)

when create file on root filesystem (ext4) works fine.

suggestions?

hello there.

im afraid cant problem have question it. why trying swap sd card. assume connected via usb connection not slow gain benefit having swap enabled it?

thought...

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