rename backup-fs to system-image

The terminology for "backing up" came from TinyCore Linux but it’s really more confusing than helpful for ppl who don’t know what’s happening under the hood.

README.md

@@ -70,7 +70,7 @@ The scripts will take it from there, asking you for information and downloading
 - `install-stage2.sh`: continues setting up things after booting into the freshly installed base system
 - `opt/`: contains files to be installed in /opt/void-usb/
   - `grub-config`: custom grub config generator (probably not necessary but at this point I don’t wanna dig into the default one)
-  - `backup-fs`: helper script to rebuild the squashfs
+  - `system-image`: helper script to rebuild the squashfs
 - `kernel.d/`: kernel hooks to be installed in /etc/kernel.d
 - `skel/`: files to be added to /etc/skel
   - `bashrc`: my custom .bashrc

install-stage1.sh

@@ -268,13 +268,13 @@ wget --output-document=/mnt/target/lib/dracut/modules.d/90void-usb/overlay.sh "$
 chmod 744 /mnt/target/lib/dracut/modules.d/90void-usb/overlay.sh >> $LOGFILE 2>&1
 echo "done"
 
-echo -n "Adding file system helper... "
+echo -n "Adding system-image helper... "
 mkdir -p /mnt/target/opt/void-usb >> $LOGFILE 2>&1
 chmod 755 /mnt/target/opt/void-usb >> $LOGFILE 2>&1
-wget --output-document=/mnt/target/opt/void-usb/backup-fs "$GIT_REPO_BASE/opt/backup-fs" >> $LOGFILE 2>&1
+wget --output-document=/mnt/target/opt/void-usb/system-image "$GIT_REPO_BASE/opt/system-image" >> $LOGFILE 2>&1
-chmod 744 /mnt/target/opt/void-usb/backup-fs >> $LOGFILE 2>&1
+chmod 744 /mnt/target/opt/void-usb/system-image >> $LOGFILE 2>&1
 echo "
-/opt/void-usb/backup-fs" >> /mnt/target/etc/rc.shutdown
+/opt/void-usb/system-image" >> /mnt/target/etc/rc.shutdown
 echo "done"
 
 echo "Adding fstab."
@@ -455,6 +455,6 @@ press_any_key
 
 echo "Creating system image..."
 #TODO: make this work without user interaction
-run_in_target /opt/void-usb/backup-fs
+run_in_target /opt/void-usb/system-image
 reboot
 #

notes_to_self.txt

@@ -31,7 +31,6 @@ put a README.txt on root dir of F2FS partition
 add online check to all the selections that need internet
 sort out /etc/resolv.conf for the chroot
 set keyboard layout for initramfs
-refer to creating a new system image as such instead of "backing up"
 need some sort of notification handler?
 
 when installing GUI also install elogind xdg-utils dbus-elogind dbus-elogind-libs dbus-elogind-x11

opt/system-image

@@ -50,34 +50,39 @@ for I in ${!MOUNT_LIST[@]}; do
   fi
 done
 
-touch /run/void-usb/backup-fs-excludes
+touch /run/void-usb/system-image-excludes
-touch /run/void-usb/backup-fs-pseudo
+touch /run/void-usb/system-image-pseudo
 for I in ${!EXCLUDE_LIST[@]}; do
-  echo "/${EXCLUDE_LIST[$I]}" >> /run/void-usb/backup-fs-excludes
+  echo "/${EXCLUDE_LIST[$I]}" >> /run/void-usb/system-image-excludes
   FILE_PERMS="$(stat -c '%a %u %g' "${EXCLUDE_LIST[$I]}")"
-  echo "\"/${EXCLUDE_LIST[$I]}\" d $FILE_PERMS" >> /run/void-usb/backup-fs-pseudo
+  echo "\"/${EXCLUDE_LIST[$I]}\" d $FILE_PERMS" >> /run/void-usb/system-image-pseudo
 done
 
 #TODO: refuse to run if system is running
 
-#TODO: add a way to force backing up without asking (for example a file in /run/void-usb)
+#TODO: add a way to force a new system image up without asking (for example a file in /run/void-usb)
 
 #TODO: colors (bright white / light gray for readability)
-echo "Back up system changes to disk?
+echo "Create a new system image?
 
-This only affects things outside the /home directory.
+This will replace the existing system image with a snapshot of the currently
-Backing up the system will take some time.
+running system. Choosing no here will discard any newly installed programs,
+updates, system configuration changes, etc.
+
+This should not affect your files in /home as they are stored to disk directly.
+Check /TODO/README.txt for more information.
+
+Creating a new system image will take some time.
 "
 
 if yesno; then
-  echo "Backing up..."
+  echo "Building image..."
-  mksquashfs / /run/void-usb/container/new_squashfs.img -b 1M -comp xz -progress -noappend -pf /run/void-usb/backup-fs-pseudo -ef /run/void-usb/backup-fs-excludes
+  mksquashfs / /run/void-usb/container/new_squashfs.img -b 1M -comp xz -progress -noappend -pf /run/void-usb/system-image-pseudo -ef /run/void-usb/system-image-excludes
   #TODO: check if enough disk space
   # yes -> create new image next to old image
   # no  -> create new image in RAM
   #TODO: figure out when appending to existing squashfs is a good idea
   mv /run/void-usb/container/new_squashfs.img /run/void-usb/container/squashfs.img
 else
-  echo ""
+  echo "Discarding system changes."
-  echo "Not backing up."
 fi