Try (hd0, 0): EXT2

[flagssss]

trafficstars

I use grub4dos start myself os (sylixos), can right start (if hard disk is a don't have other operate system (etc. linux)), but if i have installed linux os (ubuntu) , i format this hard disk to install myself os (sylixos), boot will print (Try (hd0,0): EXT2) error.

i find hard disk 2050 sector has some data, if i clear these data, myself os can right boot.

thanks.

[flagssss]

I want to ask why grub4dos to read 2050 sector.

0xeb,0x63,0x90,0x10,0x8e,0xd0,0xbc,0x00,0xb0,0xb8,0x00,0x00,0x8e,0xd8,0x8e,0xc0,0xfb, 0xbe,0x00,0x7c,0xbf,0x00,0x06,0xb9,0x00,0x02,0xf3,0xa4,0xea,0x21,0x06,0x00,0x00, 0xbe,0xbe,0x07,0x38,0x04,0x75,0x0b,0x83,0xc6,0x10,0x81,0xfe,0xfe,0x07,0x75,0xf3, 0xeb,0x16,0xb4,0x02,0xb0,0x01,0xbb,0x00,0x7c,0xb2,0x80,0x8a,0x74,0x01,0x8b,0x4c, 0x02,0xcd,0x13,0xea,0x00,0x7c,0x00,0x00,0xeb,0xfe,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x01,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0xff,0xfa,0x90,0x90,0xf6,0xc2,0x80,0x74,0x05,0xf6,0xc2,0x70,0x74, 0x02,0xb2,0x80,0xea,0x79,0x7c,0x00,0x00,0x31,0xc0,0x8e,0xd8,0x8e,0xd0,0xbc,0x00, 0x20,0xfb,0xa0,0x64,0x7c,0x3c,0xff,0x74,0x02,0x88,0xc2,0x52,0xbb,0x17,0x04,0xf6, 0x07,0x03,0x74,0x06,0xbe,0x88,0x7d,0xe8,0x17,0x01,0xbe,0x05,0x7c,0xb4,0x41,0xbb, 0xaa,0x55,0xcd,0x13,0x5a,0x52,0x72,0x3d,0x81,0xfb,0x55,0xaa,0x75,0x37,0x83,0xe1, 0x01,0x74,0x32,0x31,0xc0,0x89,0x44,0x04,0x40,0x88,0x44,0xff,0x89,0x44,0x02,0xc7, 0x04,0x10,0x00,0x66,0x8b,0x1e,0x5c,0x7c,0x66,0x89,0x5c,0x08,0x66,0x8b,0x1e,0x60, 0x7c,0x66,0x89,0x5c,0x0c,0xc7,0x44,0x06,0x00,0x70,0xb4,0x42,0xcd,0x13,0x72,0x05, 0xbb,0x00,0x70,0xeb,0x76,0xb4,0x08,0xcd,0x13,0x73,0x0d,0x5a,0x84,0xd2,0x0f,0x83, 0xd0,0x00,0xbe,0x93,0x7d,0xe9,0x82,0x00,0x66,0x0f,0xb6,0xc6,0x88,0x64,0xff,0x40, 0x66,0x89,0x44,0x04,0x0f,0xb6,0xd1,0xc1,0xe2,0x02,0x88,0xe8,0x88,0xf4,0x40,0x89, 0x44,0x08,0x0f,0xb6,0xc2,0xc0,0xe8,0x02,0x66,0x89,0x04,0x66,0xa1,0x60,0x7c,0x66, 0x09,0xc0,0x75,0x4e,0x66,0xa1,0x5c,0x7c,0x66,0x31,0xd2,0x66,0xf7,0x34,0x88,0xd1, 0x31,0xd2,0x66,0xf7,0x74,0x04,0x3b,0x44,0x08,0x7d,0x37,0xfe,0xc1,0x88,0xc5,0x30, 0xc0,0xc1,0xe8,0x02,0x08,0xc1,0x88,0xd0,0x5a,0x88,0xc6,0xbb,0x00,0x70,0x8e,0xc3, 0x31,0xdb,0xb8,0x01,0x02,0xcd,0x13,0x72,0x1e,0x8c,0xc3,0x60,0x1e,0xb9,0x00,0x01, 0x8e,0xdb,0x31,0xf6,0xbf,0x00,0x80,0x8e,0xc6,0xfc,0xf3,0xa5,0x1f,0x61,0xff,0x26, 0x5a,0x7c,0xbe,0x8e,0x7d,0xeb,0x03,0xbe,0x9d,0x7d,0xe8,0x34,0x00,0xbe,0xa2,0x7d, 0xe8,0x2e,0x00,0xcd,0x18,0xeb,0xfe,0x47,0x52,0x55,0x42,0x20,0x00,0x47,0x65,0x6f, 0x6d,0x00,0x48,0x61,0x72,0x64,0x20,0x44,0x69,0x73,0x6b,0x00,0x52,0x65,0x61,0x64, 0x00,0x20,0x45,0x72,0x72,0x6f,0x72,0x0d,0x0a,0x00,0xbb,0x01,0x00,0xb4,0x0e,0xcd, 0x10,0xac,0x3c,0x00,0x75,0xf4,0xc3,0xe9,0xba,0x02,0x00,0x00,0x00,0x80,0x20,0x21, 0x00,0x83,0xfe,0xff,0xff,0x00,0x08,0x00,0x00,0x00,0xa8,0xf7,0x06,0x00,0xfe,0xff, 0xff,0x05,0xfe,0xff,0xff,0xfe,0xb7,0xf7,0x06,0x02,0x50,0x7c,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x55,0xaa,

up is my MBR.

[flagssss]

this is boot error picture.

[steve6375]

What version of grub4dos do you have? What is date of grldr file?

[flagssss]

grub4dos 0.4.6a 2016-04-04

[steve6375]

Can you try latest version - replace /grldr with new version.

[flagssss]

i have try latest version, but my menu.lst error,

timeout 5 default 1

title SylixOS(UP) kernel /bspx86.elf ncpus=1 hz=1000 hhz=1000 console=/dev/ttyS0 kdlog=no kderror=yes kfpu=no heapchk=yes utc=no video=uvesafb:ywrap,mtrr:3,640x480-32@60

title SylixOS(NORMAL) kernel /bspx86.elf hz=1000 hhz=1000 console=/dev/ttyS0 kdlog=no kderror=yes kfpu=no heapchk=yes utc=no video=uvesafb:ywrap,mtrr:3,640x480-32@60

up is my boot parameter, does't it have error?

[steve6375]

So grldr 2016-04-04 > no boot to menu - BAD 2017-06-18 > boot to menu OK ?? So does new grldr now boot to the menu?

[yaya2007]

Please copy the 3Mb bytes from disk before uploading to the bin file.

[flagssss]

I have try the latest version (2017-06-18 ), boot is failed, follow picture. (I have installed ubuntu system to USB device, and it can normal boot to ubuntu. I format this USB (2050 sector has some data), to install myself system (bspx86.elf))

this picture is my boot files, grldr is the latest version.

this command is my create USB boot parameters ./bootlace.com --mbr-no-bpb --no-backup-mbr --mbr-disable-floppy --mbr-disable-osbr --boot-prevmbr-last /dev/sdb

[flagssss]

I find Windows format tools which will erase 2050 sector data to 0x0, so if use the window s format tools to format my USB device, and reinstall myself OS, to boot will normal boot.