57 lines
1.6 KiB
Bash
57 lines
1.6 KiB
Bash
#!/bin/bash
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#sources:
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#https://wiki.archlinux.org/title/bcache
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#https://stackoverflow.com/questions/20797819/command-to-change-the-default-home-directory-of-a-user
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ssddev=/dev/sdb
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hdddev=/dev/sdc
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sequential_cutoff=24000M
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if [ "$EUID" -ne 0 ]
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then echo "Please run as root"
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exit
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fi
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while [ -b /dev/bcache0 ]
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then echo "Canceld, device /dev/bcache0 is allready present"
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exit
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fi
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echo "Setup bcache... "
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apt-get update && \
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apt-get install -y bcache-tools && \
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dd if=/dev/zero if=$ssddev bs=512 count=8 && \
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dd if=/dev/zero if=$hdddev bs=512 count=8 && \
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wipefs -a $ssddev && \
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wipefs -a $hdddev && \
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make-bcache -C $ssddev -B $hdddev --writeback && \
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echo $sequential_cutoff > /sys/block/bcache0/bcache/sequential_cutoff && \
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echo "ACTION==\"add\", SUBSYSTEM==\"block\", ENV{MAJOR}==\"252\", ATTR{bcache/sequential_cutoff}=\"$sequential_cutoff\"" \
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> /etc/udev/rules.d/99-bcache_sequential_cutoff.rules && \
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udevadm test /sys/block/bcache0
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if [ $? -eq 0 ]; then
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echo "Wait until device is ready... "
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while [ ! -b /dev/bcache0 ]; do sleep 1; done
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echo "Fromat and mount bcache device... "
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mkfs.ext4 /dev/bcache0 && \
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mkdir /mnt/bcache && \
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mount /dev/bcache0 /mnt/bcache && \
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echo "/dev/bcache0 /mnt/bcache ext4 rw 0 0" >> /etc/fstab
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fi
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if [ $? -eq 0 ]; then
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echo "Config home directory for new users on bcache partition... "
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mkdir /mnt/bcache/home && \
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echo "#" >> /etc/default/useradd && \
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echo "# Modifications:" >> /etc/default/useradd && \
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echo "HOME=/mnt/bcache/home" >> /etc/default/useradd
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fi
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if [ $? -eq 0 ]; then
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echo ""
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echo "Setup successfully finished"
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fi
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