From 2945eb73dd988cbd9775395128935256deb9a96e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Stefan=20Br=C3=BCns?= Date: Thu, 11 Aug 2016 22:52:03 +0200 Subject: sandbox: document support of block device emulation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Stefan Brüns Acked-by: Simon Glass Changed 'Sandbox' to 'sandbox' in subject: Signed-off-by: Simon Glass --- board/sandbox/README.sandbox | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'board/sandbox/README.sandbox') diff --git a/board/sandbox/README.sandbox b/board/sandbox/README.sandbox index ed820d3..02d8ab3 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 ----------------------- -- cgit v1.1