[Install XP from a RAM loaded ISO image]

Added 2:

Example: load the first 234567 sectors to RAM.

Remember one CD sector holds 2048 byte data

title Loading XP RAM install - /Inst/XP_RAM.ISO (0xFE)+234567
ls /Inst/XP_RAM.ISO || find --set-root /Inst/XP_RAM.ISO
map --mem /Inst/XP_INST.IMA (fd0)
map /Inst/XP_RAM.ISO (0xFE)
map --hook
map --mem (0xFE)+234567 (0xFF)
map --hook
chainloader (0xFF)/I386/SETUPLDR.BIN

Added 3:

Just to confirm. Yes, the idea does work.

You may add several hundred megabyte data with BTS driverpacks method 2 to end of ISO image.

And you may RAM load first part of ISO image only. Driverpacks addon won't require more RAM usage.

Windows installation does work.

this is beautiful approach for the legacy systems , to load specific sectors of the iso . just couple of questions ( i ll try the above tomorrow hopefully ) ,

1. HOW the iso image can be sorted to have OEM folder at the end of the iso , the current structure of my iso is

/$OEM$ (15,415,570 bytes )

/I386 (97,704,075 bytes )

/OEM (21,293,545 bytes )

/WIN51

/WIN51IP

/WIN51IP.SP2

i guess OEM is already the end , so it ll be fine if i ll load specific sectors first ? actually the above image is 133 MB only . it is very stripped down image which im using for testing this ram thing only coz i have slow system . since im weak in math , so i dont know how much i should specify to load in place of

map --mem (0xFE)+234567 (0xFF)

2. lets suppose we have 3 xp images to be installed from usb using firadisk method . is it possible to have OEM (BTS packs) at root of usb drive , so that all 3 xp images can use them ?

i mean it SEEMS possible with a batch command which can copy them at the time of need to the target partition but then i guess we ll have to use C:\ only for installing purposes . or am i just dreaming ?