71 lines
2.1 KiB
Bash
71 lines
2.1 KiB
Bash
#!/bin/bash
|
|
|
|
#sources:
|
|
#https://wiki.archlinux.org/title/bcache
|
|
#https://stackoverflow.com/questions/20797819/command-to-change-the-default-home-directory-of-a-user
|
|
#https://unix.stackexchange.com/questions/156102/optimizing-bcache
|
|
#https://evilpiepirate.org/git/linux-bcache.git/tree/Documentation/bcache.txt
|
|
|
|
#Block device for caching (e.g. disk or partition):
|
|
ssddev=/dev/sdb
|
|
|
|
#Block device to use with cache:
|
|
hdddev=/dev/sdc
|
|
|
|
#Cache sequential writes files, no cutoff
|
|
#There is an issue with parsing of prefixes, max 4 GB
|
|
sequential_cutoff=0
|
|
|
|
if [ "$EUID" -ne 0 ]; then
|
|
echo "Please run as root"
|
|
exit
|
|
fi
|
|
|
|
read -p "Block devices $ssddev and $hdddev will be wiped, are you sure proceed?" -n 1 -r
|
|
echo
|
|
if [[ ! $REPLY =~ ^[Yy]$ ]]; then
|
|
exit
|
|
fi
|
|
|
|
while [ -b /dev/bcache0 ]; then
|
|
echo "Canceld, device /dev/bcache0 is allready present"
|
|
exit
|
|
fi
|
|
|
|
echo "Clean disks and setup bcache... "
|
|
dd if=/dev/zero of=$ssddev bs=512 count=8 && \
|
|
dd if=/dev/zero of=$hdddev bs=512 count=8 && \
|
|
wipefs -a $ssddev && \
|
|
wipefs -a $hdddev && \
|
|
apt-get update && \
|
|
apt-get install -y bcache-tools && \
|
|
make-bcache -C $ssddev -B $hdddev --writeback
|
|
|
|
echo "Wait until device is ready... "
|
|
while [ ! -b /dev/bcache0 ]; do sleep 1; done
|
|
|
|
if [ $? -eq 0 ]; then
|
|
echo "Config, format and mount bcache device... "
|
|
echo $sequential_cutoff > /sys/block/bcache0/bcache/sequential_cutoff && \
|
|
echo "ACTION==\"add\", SUBSYSTEM==\"block\", ENV{MAJOR}==\"252\", ATTR{bcache/sequential_cutoff}=\"$sequential_cutoff\"" \
|
|
> /etc/udev/rules.d/99-bcache_sequential_cutoff.rules && \
|
|
udevadm test /sys/block/bcache0 && \
|
|
mkfs.ext4 /dev/bcache0 && \
|
|
mkdir /mnt/bcache && \
|
|
mount /dev/bcache0 /mnt/bcache && \
|
|
echo "/dev/bcache0 /mnt/bcache ext4 rw 0 0" >> /etc/fstab
|
|
fi
|
|
|
|
if [ $? -eq 0 ]; then
|
|
echo "Config default home directory for new users on bcache partition... "
|
|
mkdir /mnt/bcache/home && \
|
|
echo "#" >> /etc/default/useradd && \
|
|
echo "# Modifications:" >> /etc/default/useradd && \
|
|
echo "HOME=/mnt/bcache/home" >> /etc/default/useradd
|
|
fi
|
|
|
|
if [ $? -eq 0 ]; then
|
|
echo ""
|
|
echo "Setup successfully finished"
|
|
fi
|