Re: [gentoo-user] making bootable USB

[Joseph <syscon780@gmail.com>]

On 09/01/14 11:32, J. Roeleveld wrote:
>On Sunday, August 31, 2014 08:06:46 PM Joseph wrote:
>> On 08/31/14 20:55, Will Tomlinson wrote:
>> >On Sun, 31 Aug 2014 12:06:49 -0600
>> >
>> >Joseph <syscon780@gmail.com> wrote:
>> >> I've re-run the setup but it still doesn't work.
>> >>
>> >> df -h
>> >> /dev/sda1       3.8G  190M  3.6G   5% /run/media/joseph/4GB_ysa
>> >>
>> >> /dev/sda1 *     2048   7864319 3931136   b W95 FAT32
>
>Which command did you use to create the filesystem?

I used to format usb stick flash drive - bootable
create partition if it doesn't exist
# fdisk /dev/sda
n
p
1 enter, enter

t
b
w
q

format it for 1GB
# mkfs -t vfat /dev/sda1

format it for 4GB
# mkfs -t vfat -F 32 /dev/sda1

>> >> while usb not mounted:
>> >>
>> >> dd if=/usr/share/syslinux/mbr.bin of=/dev/sda
>> >> 0+1 records in
>> >> 0+1 records out
>> >> 440 bytes (440 B) copied, 0.00121707 s, 362 kB/s
>> >>
>> >> While usb mounted:
>
>Which command do you use to mount?

To mount USB I use from my desktop XFCE icon drop down menu after icon showed up "Mount Volume" 


><SNIP>
>
>> >
>> >Joseph, I am assuming you are trying to create an install disk? If so,
>> >you shouldn't have to do all these steps. I normally just download the
>> >minimal install ISO and write it to a USB drive with the following
>> >commands:
>> >
>> ># dd if=/path/to/minimal-install.iso of=/path/to/usb-drive bs=4096
>> ># sync
>> >
>> >You don't have to mount the USB drive. Use sync to ensure that all the
>> >data has actually been written to the device before you remove it.
>> >
>> >I have run across problems with some ISO files that don't play nice
>> >with this method, but this one seems to work well with the Gentoo
>> >minimal CD. Also, keep in mind that you don't really need to have the
>> >Gentoo install disc to install Gentoo. It's certainly EASIER to follow
>> >the handbook when you have the minimal install disc, but just about any
>> >Linux live CD will work as long as the architecture matches (chroot
>> >from x86 to amd64, for example, will not work). Anyway, if this is not
>> >what you are trying to do, maybe you can give us more details.
>>
>> I run it on 1MB USB stick, it did not work:
>> dd if=/path/to/minimal-install.iso of=/path/to/usb-drive bs=4096
>> sync
>>
>> I think the "dd" will work with LiveDVD but not liveCD.
>
>Why not use unetbootin?
>
>--
>Joost

I used LiveCD (SystemRescueCD)
http://blog.kasunbg.org/2012/02/installing-gentoo-from-livecd.html

mounted with "loop"
mount -o loop,ro -t iso9660 /home/joseph/Downloads/systemrescuecd-x86-4.3.0.iso /mnt/cdrom/

cd /tmp/cdrom
bash ./usb_inst.sh

and their scrip made the bootable USB just fine, it works.
But it bugs me that Gentoo instruction didn't work.

-- 
Joseph