[syslinux] Memdisk Decompression problems - with complete data

[Sylvain Faivre]

Hello, I am experimenting the same problem (SYSLINUX failing while
uncompressing the disc image) with the CD image from the "Unattended"
software (http://unattended.sourceforge.net/)
This CD works all right on some machines, but not on one of the machines
I have.
Here is the complete MEMDISK output from the failing machine. This is a
Toshiba Satellite Pro 4600 laptop.

Loading memdisk....
Loading e100b.imz..........
Ready.
MEMDISK 2.07 2.07-pre5  Copyright 2001-2003 H. Peter Anvin
E820: 0000000000000000 000000000009fc00 1
E820: 000000000009fc00 0000000000000400 2
E820: 00000000000e0000 000000000000e800 2
E820: 00000000000ee800 0000000000000600 2
E820: 00000000000eee00 0000000000000200 4
E820: 00000000000ef000 0000000000001000 2
E820: 00000000000f0000 0000000000010000 2
E820: 0000000000100000 0000000013e60000 1
E820: 0000000013f60000 0000000000010000 3
E820: 0000000013f70000 0000000000090000 2
E820: 00000000feea0000 0000000000020000 2
E820: 00000000ffb00000 0000000000100000 2
E820: 00000000fff00000 0000000000100000 2
Ramdisk at 0x13eb0000, length 0x0008141f
Moving compressed data from 0x13eb0000 to 0x13d76a00
Gzip image: decompressed addr 0x13df8000, len 0x00168000: failed
Decompression error: ran out of input data
Ran out of input data



And here is the output from a "good" machine.

Loading memdisk....
Loading e100b.imz..........
Ready.
MEMDISK 2.07 2.07-pre5  Copyright 2001-2003 H. Peter Anvin
E820: 0000000000000000 000000000009fc00 1
E820: 000000000009fc00 0000000000000400 2
E820: 00000000000f0000 0000000000010000 2
E820: 00000000ffff0000 0000000000010000 2
E820: 0000000000100000 000000000fef0000 1
E820: 000000000fff3000 000000000000d000 3
E820: 000000000fff0000 0000000000003000 4
Ramdisk at 0x0ff40000, length 0x0008141f
Moving compressed data from 0x0ff40000 to 0x0fe06a00
Gzip image: decompressed addr 0x0fe88000, len 0x00168000: ok
Command line: initrd=e100b.imz BOOT_IMAGE=memdisk
Disk is floppy, 1440K, C/H/S = 80/2/18
Total size needed= 1340 bytes
[...]


Thanks in advance,


---------------------
Sylvain Faivre
EdifiXio - AIH Team
+33 1 56 90 51 24
www.edifixio.com