FTP protocol problem

[NiKiZe]

(2016-12-27 19:08)iosif_matei Wrote:  FTP 0x27794 received status 200
FTP 0x27794 sending SIZE /sda/ipxe/modules/liveiso/tinycore/tinycore.iso
FTP 0x27794 received status 550
FTP 0x27794 sending PASV
FTP 0x27794 received status 227
FTP 0x27794 sending RETR /sda/ipxe/modules/liveiso/tinycore/tinycore.iso
FTP 0x27794 received status 150
100%

After all this debug info is displayed i need to wait 5 min and tinycore boot .

I would have expected you to see a FTP close as well before seeing the boot.
Could you try the same thing with HTTP?

Looking on those FTP commands you have SIZE with a 550 response, no size means that ipxe can't pre-allocate a buffer to fit the file so it will need to remap the local memory for each packet received, this might very well be the issue causing the delay.

I would have tried with http or a different FTP server implementation that supports the size command to compare the speed.