From: Stefan Brüns Date: Thu, 11 Aug 2016 20:52:03 +0000 (+0200) Subject: sandbox: document support of block device emulation X-Git-Tag: v2016.11-rc1~122^2~20 X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=2945eb73dd988cbd9775395128935256deb9a96e;p=oweals%2Fu-boot.git sandbox: document support of block device emulation Signed-off-by: Stefan Brüns Acked-by: Simon Glass Changed 'Sandbox' to 'sandbox' in subject: Signed-off-by: Simon Glass --- diff --git a/board/sandbox/README.sandbox b/board/sandbox/README.sandbox index ed820d338e..02d8ab3d09 100644 --- a/board/sandbox/README.sandbox +++ b/board/sandbox/README.sandbox @@ -320,6 +320,25 @@ CONFIG_SPI_IDLE_VAL The idle value on the SPI bus +Block Device Emulation +---------------------- + +U-Boot can use raw disk images for block device emulation. To e.g. list +the contents of the root directory on the second partion of the image +"disk.raw", you can use the following commands: + +=>host bind 0 ./disk.raw +=>ls host 0:2 + +A disk image can be created using the following commands: + +$> truncate -s 1200M ./disk.raw +$> echo -e "label: gpt\n,64M,U\n,,L" | /usr/sbin/sfdisk ./disk.raw +$> lodev=`sudo losetup -P -f --show ./disk.raw` +$> sudo mkfs.vfat -n EFI -v ${lodev}p1 +$> sudo mkfs.ext4 -L ROOT -v ${lodev}p2 + + Writing Sandbox Drivers -----------------------