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 Forum index » House Training » Beginners Help ( Start Here)
Trouble booting from SD
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greengeek

Joined: 20 Jul 2010
Posts: 2596
Location: New Zealand

PostPosted: Wed 03 Sep 2014, 04:52    Post_subject:  

I've just tried setting up a bootable SD card in my Toshiba M700 laptop and Grub4dos gave me the message:
"No supported filesystems in /dev/mmcblk0p1|ext4|" so would you agree it doesn't look like it's going to be very bootable like that...?

Tried formatting the SD as Fat32 and f2fs but no change.

Have I got things in the right order -
- Format with Gparted
- Set boot flag on
- Load puppy files
- Run Grub4dos

thats as far as I get.
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Latitude

Joined: 12 Jul 2014
Posts: 76
Location: Melbourne, Australia

PostPosted: Wed 03 Sep 2014, 08:12    Post_subject:  

When formatting an SD card or USB stick to FAT32, you also need to set the LBA flag.
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cthisbear

Joined: 29 Jan 2006
Posts: 3433
Location: Sydney Australia

PostPosted: Wed 03 Sep 2014, 08:31    Post_subject:  

I booted the old Puppy 4.21 ... I think.

And used the regular program to install Puppy to SD.
But can it boot sd???

"""""

http://www.tabletpcbuzz.com/showthread.php?36573-M200-amp-booting-from-SD&p=316942#post316942

"""

This is for a bios upgrade.

But it states SD card will boot if formatted.

Maybe look at just booting the sd card instructions.

http://forums.steves-digicams.com/toshiba/15763-dpr-m700-firmware-2.html

::::::

Best I can do....Chris.
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greengeek

Joined: 20 Jul 2010
Posts: 2596
Location: New Zealand

PostPosted: Thu 04 Sep 2014, 06:25    Post_subject:  

cthisbear wrote:
Maybe look at just booting the sd card instructions.

http://forums.steves-digicams.com/toshiba/15763-dpr-m700-firmware-2.html
Hi Chris, thanks for the links. I was struggling to figure out where the heck the "ERASE" button was on my keyboard when I realised those instructions are for a Toshiba M700 camera rather than an M700 laptop. How confusing is that. Smile

Latitude wrote:
When formatting an SD card or USB stick to FAT32, you also need to set the LBA flag.
I just realised I can boot ok with the card in an external multicard reader plugged into a usb port, just not in the internal sd slot that sees it as a mmcblk device. This is without the lba flag set. I will try setting the lba and see if that changes anything. Thx.

EDIT : I reformatted with the lba flag set but this made no difference to the inability of grub4dos to see the correct format of data on the sd card when it is in the inbuilt sd reader slot. It works perfectly in the multicard reader plugged into usb. Must be just my bios not permitting the internal sd reader slot to be used for boot functions.
.
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