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1. See https://github.com/adafruit/Raspberry-Pi-Installer-Scripts/iss… #93

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1. See https://github.com/adafruit/Raspberry-Pi-Installer-Scripts/iss… #93

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13 changes: 8 additions & 5 deletions read-only-fs.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -281,21 +281,24 @@ replaceAppend /etc/ssh/sshd_config "^.*UsePrivilegeSeparation.*$" "UsePrivilegeS
replace /usr/lib/tmpfiles.d/var.conf "spool\s*0755" "spool 1777"

# Move dhcpd.resolv.conf to tmpfs
touch /tmp/dhcpcd.resolv.conf
rm /etc/resolv.conf
ln -s /tmp/dhcpcd.resolv.conf /etc/resolv.conf
#touch /tmp/dhcpcd.resolv.conf
#rm /etc/resolv.conf
#ln -s /tmp/dhcpcd.resolv.conf /etc/resolv.conf

# Make edits to fstab
# make / ro
# tmpfs /var/log tmpfs nodev,nosuid 0 0
# tmpfs /var/tmp tmpfs nodev,nosuid 0 0
# tmpfs /tmp tmpfs nodev,nosuid 0 0
replace /etc/fstab "vfat\s*defaults\s" "vfat defaults,ro "
replace /etc/fstab "ext4\s*defaults,noatime\s" "ext4 defaults,noatime,ro "
replace /etc/fstab "vfat\s*defaults\s.*" "vfat defaults,ro\t0\t0"
replace /etc/fstab "ext4\s*defaults,noatime\s.*" "ext4 defaults,noatime,ro\t0\t0"
append1 /etc/fstab "/var/log" "tmpfs /var/log tmpfs nodev,nosuid 0 0"
append1 /etc/fstab "/var/tmp" "tmpfs /var/tmp tmpfs nodev,nosuid 0 0"
append1 /etc/fstab "\s/tmp" "tmpfs /tmp tmpfs nodev,nosuid 0 0"

# Stop vim creating tmp files in ~/.viminfo (ro)
echo 'set viminfo=""' >>/etc/vim/vimrc.local

# PROMPT FOR REBOOT --------------------------------------------------------

echo "Done."
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