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Xubuntu readonly filesystem.

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Miguel Scapolla 2016-06-04 15:21:35 -03:00
parent 01efc4c6c2
commit ebe1b09076
1 changed files with 40 additions and 52 deletions
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92
xubuntu-read-only-filesystem.txt
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@ -11,16 +11,14 @@ Xubuntu 16.04 with read only root filesystem for SSD disk
* install xubuntu 16.04 in /dev/sdc1. * install xubuntu 16.04 in /dev/sdc1.
* boot with xubuntu 16.04 in /dev/sdc1.
* mount /dev/sda2 /mnt * mount /dev/sda2 /mnt
* mkdir /mnt/tmp ; chmod 1777 /mnt/tmp * mkdir /mnt/tmp ; chmod 1777 /mnt/tmp
* mkdir /mnt/home ; chmod 0755 /mnt/home * mkdir /mnt/home ; chmod 0755 /mnt/home
* rsync -av /home/ /mnt/home/
* rm -fr /home/* /tmp/* /tmp/.* <-- CAUTION!
* mkdir -p /var/mounts/sda2 ; chmod 0755 /var/mounts/sda2 * mkdir -p /var/mounts/sda2 ; chmod 0755 /var/mounts/sda2
* mkdir -p /var/mounts/mediarw ; chmod 0755 /var/mounts/mediarw * mkdir -p /var/mounts/mediarw ; chmod 0755 /var/mounts/mediarw
@ -29,66 +27,56 @@ Xubuntu 16.04 with read only root filesystem for SSD disk
* mkdir -p /var/mounts/mediaro/share1 ; chmod 0755 /var/mounts/mediaro/share1 * mkdir -p /var/mounts/mediaro/share1 ; chmod 0755 /var/mounts/mediaro/share1
* /usr/local/bin/readonlyfs * mkdir -p /var/mounts/log ; chmod 0775 /var/mounts/log ; chown root.syslog /var/mounts/log
#!/bin/bash * mkdir -p /var/mounts/lightdm ; chmod 0755 /var/mounts/lightdm ; chown lightdm.lightdm /var/mounts/lightdm
### BEGIN INIT INFO
# Provides: readonlyfs
# Required-Start:
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Read only root filesystem.
# Description: This script provides a read only root
# filesystem for use xubuntu with solid
# state drives.
### END INIT INFO
PATH=/usr/sbin:/usr/bin:/sbin:/bin * rsync -av /home/ /mnt/home/
case "$1" in * rm -fr /home/* ; rm -fr /home/.* <-- CAUTION!
start)
echo "Starting read only filesystem."
mount -t tmpfs -o size=1M tmpfs /var/mounts/mediarw * rm -fr /tmp/* ; rm -fr /tmp/.*
mount -t aufs -o br=/var/mounts/mediarw=rw:/var/mounts/mediaro=ro -o udba=reval none /media
chmod 0755 /media
mount -o noatime /dev/sda2 /var/mounts/sda2 * rm -fr /var/tmp/* ; rm -fr /var/tmp/.*
mount --bind /var/mounts/sda2/home /home
mount --bind /var/mounts/sda2/tmp /tmp
mount --bind /var/mounts/sda2/tmp /var/tmp
mount -t tmpfs -o nosuid,nodev,mode=0755,rw,size=1M,uid=lightdm,gid=lightdm tmpfs /var/lib/lightdm * rm -fr /var/log/* ; rm -fr /var/log/.*
mount --bind /var/lib/lightdm /var/lib/lightdm-data
mount -t tmpfs -o nosuid,nodev,mode=0777,rw,size=8M,uid=root,gid=syslog tmpfs /var/log * rm -fr /var/spool/* ; rm -fr /var/spool/.*
mount --bind /var/log /var/spool
mount --bind /var/log /var/lib/blueman
;;
stop)
echo "Stopping read only filesystem."
;;
*)
echo "Usage: readonlyfs start|stop"
;;
esac
exit 0
* chmod 744 /usr/local/bin/readonlyfs * rm -fr /var/lib/blueman/* ; rm -fr /var/lib/blueman/.*
* ln -s /usr/local/bin/readonlyfs /etc/init.d/readonlyfs * rm -fr /var/lib/lightdm/* ; rm -fr /var/lib/lightdm/.*
* ln -s ../init.d/readonlyfs /etc/rcS.d/S99readonlyfs * rm -fr /var/lib/lightdm-data/* ; rm -fr /var/lib/lightdm-data/.*
* update-rc.d readonlyfs disable
* update-rc.d readonlyfs enable
* /etc/fstab * /etc/fstab
UUID=<UUID_/dev/sdc1> / ext4 ro,noatime,errors=remount-ro 0 0 #--- root & swap ---
UUID=<UUID_/dev/sda3> none swap sw 0 0 UUID=[UUID-SDC1] / ext4 ro,noatime,errors=remount-ro 0 1
<NFSSERVER>:/path/to/share1 /media/share1 nfs _netdev,rw,noauto,user,users,noexec,nosuid,nolock,noatime,nfsvers=3,sec=sys,udp,rsize=32768,wsize=32768 0 0 UUID=[UUID-SDA3] none swap sw 0 0
#--- home & tmp ---
UUID=[UUID-SDA2] /var/mounts/sda2 ext4 rw,noatime,errors=remount-ro,x-systemd.requires=/ 0 1
/var/mounts/sda2/home /home none bind,x-systemd.requires=/var/mounts/sda2 0 0
/var/mounts/sda2/tmp /tmp none bind,x-systemd.requires=/var/mounts/sda2 0 0
/var/mounts/sda2/tmp /var/tmp none bind,x-systemd.requires=/var/mounts/sda2 0 0
#--- logs ---
tmpfs /var/mounts/log tmpfs rw,nosuid,nodev,noatime,mode=0777,size=8M,uid=root,gid=syslog,x-systemd.requires=/ 0 0
/var/mounts/log /var/log none bind,x-systemd.requires=/var/mounts/log 0 0
/var/mounts/log /var/spool none bind,x-systemd.requires=/var/mounts/log 0 0
/var/mounts/log /var/lib/blueman none bind,x-systemd.requires=/var/mounts/log 0 0
#--- lightdm ---
tmpfs /var/mounts/lightdm tmpfs rw,nosuid,nodev,noatime,mode=0755,size=1M,uid=lightdm,gid=lightdm,x-systemd.requires=/ 0 0
/var/mounts/lightdm /var/lib/lightdm none bind,x-systemd.requires=/var/mounts/lightdm 0 0
/var/mounts/lightdm /var/lib/lightdm-data none bind,x-systemd.requires=/var/mounts/lightdm 0 0
#--- media ---
tmpfs /var/mounts/mediarw tmpfs rw,nosuid,nodev,noatime,mode=0755,size=1M,uid=root,gid=root,x-systemd.requires=/ 0 0
aufs /media aufs rw,noatime,br=/var/mounts/mediarw=rw:/var/mounts/mediaro=ro,udba=reval,x-systemd.requires=/var/mounts/mediarw 0 0
#--- shares ---
[NFSSERVER]:/path/to/nfs/share1 /media/share1 nfs _netdev,rw,noauto,user,users,noexec,nosuid,nolock,noatime,nfsvers=3,sec=sys,udp,rsize=32768,wsize=32768 0 0
* /etc/default/grub * /etc/default/grub
GRUB_TIMEOUT=N GRUB_TIMEOUT=N