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simplify mkusb.sh

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This commit is contained in:
zolliker
2024-01-16 18:17:27 +01:00
parent 9fdb7c86ca
commit 370896170a
3 changed files with 38 additions and 49 deletions
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17
README.md
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@ -95,9 +95,9 @@ it is a matter of convenience. In this case omit ``| pv `` in the commands
## install image by means of an USB stick
## install image by means of the USB stick BOOT_TINY
The stick has TinyLinux and on it and some additional scripts
The stick has TinyLinux on it and some additional scripts
If you do not have one, you may create it logging to an other box as root
@ -105,13 +105,11 @@ If you do not have one, you may create it logging to an other box as root
to verify that /dev/sdb is your stick, use the following command before and after plugging the stick
```
apu> ls /dev/sdb
```
apu> cd aputools
apu> bash mkusb.sh
copy the stick image to the stick (32 GB should be enough)
... you are asked to give the device name from a list (typically sdb) ...
```
mac> dd if=apuinstall.lz4 bs=512k | pv | ssh root@<ip or hostname> "lz4 -d | dd of=/dev/sdb bs=512k"
```
### b) mount with TinyLinux from USB stick
@ -125,7 +123,7 @@ mac> screen /dev/tty.usbserial-130 115200
Do not yet connect LAN, plug USB stick and start the box, wait for prompt 'tc@box:'
```
apu> cd /media/CENTOS7_APU (or /media/CENTOS_APU)
apu> cd /media/BOOT_TINY (or /media/CENTOS_APU)
apu> sh reg
```
@ -145,6 +143,9 @@ Use the displayed ip address for the following step.
### c) Copy Image to APU SSD
Note that the images are not part of the git repo.
```
mac> cd ~/switchdrive/apu/images
mac> dd if=apumaster.lz4 bs=512k | pv | ssh root@192.168.1.43 "lz4 -d | dd of=/dev/sda bs=512k"

34
mktiny.sh
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@ -1,34 +0,0 @@
# create a bootable USB stick for APU
# this part of the script needs root priv
if [ $# -ne 2 ] || [ $EUID != 0 ]
then
echo "Usage: sudo bash mktiny.sh <device name> <usb stick name>"
exit
fi
if [[ $(cat /sys/block/$1/removable) != "1" ]]; then
echo "/dev/$1 is not a removable disk"
exit
fi
DEVICE=/dev/$1
NAME=$2
umount ${DEVICE}1
dd if=/dev/zero of=${DEVICE} count=1 conv=notrunc
echo -e "o\nn\np\n1\n\n\nw" | fdisk ${DEVICE}
mkfs.vfat -n $NAME -I ${DEVICE}1
syslinux -i ${DEVICE}1
dd conv=notrunc bs=440 count=1 if=mbr.bin of=${DEVICE}
parted ${DEVICE} set 1 boot on
mkdir -p /mnt/apusb
mount ${DEVICE}1 /mnt/apusb
echo "copy files ..."
cp files/* /mnt/apusb/
umount /mnt/apusb
rm -rf usbboot
echo "done."

36
mkusb.sh
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@ -1,15 +1,13 @@
# name of the USB stick to be created
NAME=BOOT_TINY
echo "enter source for tinylinux files, e.g. zolliker@mpc1704:switchdrive/apu/usbboot"
echo "enter source for tinylinux files, e.g. zolliker@mpc1704:switchdrive/apu/boot_tiny"
read SRC
scp -r $SRC ./
cd usbboot
# create (overwrite) syslinux.cfg
cat > files/syslinux.cfg << "EOF"
cat > boot_tiny/syslinux.cfg << "EOF"
SERIAL 0 115200
CONSOLE 0
default centos
@ -19,9 +17,9 @@ label centos
kernel vmlinuz
append initrd=core.gz inst.stage2=hd:LABEL=USBNAME quiet console=ttyS0,115200n8
EOF
sed -i -- "s/USBNAME/$NAME/g" files/syslinux.cfg
sed -i -- "s/USBNAME/$NAME/g" boot_tiny/syslinux.cfg
ls files
ls boot_tiny
# list removeable disks
DISKS=()
@ -43,7 +41,31 @@ read DEVICE
if [[ " ${DISKS[@]} " =~ " $DEVICE " ]]; then
echo "create TinyLinux"
sudo bash ../mktiny.sh $DEVICE $NAME
if [[ $(cat /sys/block/$DEVICE/removable) != "1" ]]; then
echo "/dev/$DEVICE is not a removable disk"
exit
fi
DEVICE=/dev/$DEVICE
umount ${DEVICE}1
dd if=/dev/zero of=${DEVICE} count=1 conv=notrunc
echo -e "o\nn\np\n1\n\n\nw" | fdisk ${DEVICE}
mkfs.vfat -n $NAME -I ${DEVICE}1
syslinux -i ${DEVICE}1
dd conv=notrunc bs=440 count=1 if=mbr.bin of=${DEVICE}
parted ${DEVICE} set 1 boot on
mkdir -p /mnt/apusb
mount ${DEVICE}1 /mnt/apusb
echo "copy files ..."
cp boot_tiny/* /mnt/apusb/
umount /mnt/apusb
rm -rf boot_tiny
echo "done."
else
echo "/dev/$DEVICE is not a removeable disk"
fi