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The problem with operation of IMA of images of HDD is more than 2GB
2015-04-22, 06:54
Post: #1
The problem with operation of IMA of images of HDD is more than 2GB
Im create HDD image from physical hdd 3,5 GB.
On this hdd one boot partition 3.5GB, FAT32 and installing DOS(from win98).
On this partition there is a lot of different files, the total size of all files is more than 2 GB.

Im Boot from an HTTP target:
samboot http://192.168.0.1/disk.ima
Perfectly booting DOS, everything works, very thanks to the author of ipxe Wink

Files which are located on a disk less than 2GB physical hdd addres(lba) - read perfectly.
But there is one problem:
The file which data are above to boundary of address space of HDD more 2GB, reads not correctly.
I have an assumption that somewhere in the IPXE program - addressing restriction is put (2GB maximum).

Please check the IPXE program and correct an error.
If additional clarification is necessary, I am ready to a discussion.

Thanks.
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2016-10-07, 09:25
Post: #2
RE: The problem with operation of IMA of images of HDD is more than 2GB
Most DOS software are not able to address above 2GB because of the 32-bit boundary and some FAT limits (I can't recall the exact details). You most likely need to mount multiple disks to make it work or use iSCSI/AoE instead of HTTP sanboot.
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