Missing Operating System

[amplatfus]

Hi,

Hi. I get "Missing Operating System" on booting after fresh instal on usb. I am looking to understand what I am doing wrong.
Here I my log from installing using Porteus 2.1 RC2 KDE.

Code: Select all

device: /dev/sdb
partition: /dev/sdb1
partition number: 1
partition mount point: /mnt/sdb1
installation path: /mnt/sdb1/boot
subfolder: 
filesystem: ext3
bootloader: extlinux
error code: 
system: porteus 3.9.4-porteus i686
mount details: /dev/sdb1 /mnt/sdb1 ext3 rw,relatime,data=ordered 0 0

I have followed this tutorial:

http://www.porteus.org/tutorials/37-ins ... #USB-linux
Please advice!

Thank you,
amplatfus

[Hamza]

MBR?!

[fanthom]

everything looks ok. are you sure your BIOS is set to boot from usb?
could you check on any other PC?

[amplatfus]

everything looks ok. are you sure your BIOS is set to boot from usb?
could you check on any other PC?

I can confirm everything is OK in bios.
All I wanted to do was to install Porteus 2.1 final on another USB stick (B) before using on my default USB stick (A).
It is a older USB used before with Porteus, but with FAT partition. Now, I do not way, even the partition is a active EXT3, doesn't boot.

I took a deep breath and installed Porteus 2.1 on my default USB device (A) with the same steps and it worked without problems.
Maybe (B) is now compatible any more....I do not know.

Thank you,
amplatfus

[tome]

Older bioses don't boot grub from some usb, you can use lilo and start grub4dos from lilo with this lilo.conf:

Code: Select all

image=DO_NOT_CHANGE/grub.exe

or with similar path.

[amplatfus]

Older bioses don't boot grub from some usb, you can use lilo and start grublegacy from lilo with this lilo.conf:

Code: Select all

image=DO_NOT_CHANGE/grub.exe

or with similar path.

My USB device (B) is old but worked to boot when was formated as FAT. Now have tried with EXT3. The partition is active and no errors in instalation procedure. All files are copied OK, and the log from the installation script is posted here in fisrt post.

My Bios is from a i5 core laptop; is not from a older BIOS.

Thank you.