showaufs, lsaufs - utilities to display aufs stack

[gyro]

showaufs:
Displays all the information contained in '/sys/fs/aufs/si_*/'.
If a branch directory is a mount point, it shows what is mounted there instead of the directory name.
A shell script that has no parameters.

Code: Select all

# showaufs
br0	rw	/initrd/mnt/dev_save/puppy/squeeze/squeezesave
br1	ro	/initrd/mnt/dev_save/puppy/squeeze/puppy_squeeze_5.X.3.4.12.sfs
br2	ro	/initrd/mnt/dev_save/jre-1.7u45-i586.sfs
br3	ro	/initrd/mnt/dev_save/puppy/squeeze/devx_squeeze_5.X.3.4.12.sfs
xi_path    /tmp/.aufs.xino
# 

lsaufs:
Lists the directories that are branches in the aufs stack, in the order they occur in the aufs stack.
It can be used by other scripts that need to process the directories in the current aufs stack.
A shell script that takes a single optional parameter which is the branch number to start with, '0' is the same as no parameter.

Code: Select all

# lsaufs
/initrd/mnt/dev_save/puppy/squeeze/squeezesave
/initrd/pup_ro2
/initrd/pup_ro4
/initrd/pup_ro5
#

Code: Select all

# lsaufs 2
/initrd/pup_ro4
/initrd/pup_ro5
# 

Edit: Replaced 'showaufs' with new improved version, see post below. Now works with savefolder implemented as a 'bind -o mount'.

gyro

[stemsee]

Works nicely and I am sure will com in handy. Thanks!

stemsee

[mikeb]

and losetup is handy too...

Code: Select all

bash-3.1# losetup /dev/loop4
/dev/loop4: [0302]:230345 (/mnt/hda2/nimblex/base/09-xfce4-4.4.2-230414.lzm)

I can do this on slax but not sure if there is a puppy equivalent now for cpio initrds...

Code: Select all

bash-3.1# cat /mnt/live/proc/mounts
rootfs / rootfs rw 0 0
/dev/root /mnt/live ext2 rw 0 0
proc /mnt/live/proc proc rw 0 0
/dev/hda2 /mnt/live/mnt/hda2 ext3 rw,noatime,data=ordered 0 0
/dev/hda2 /mnt/live/memory ext3 rw,noatime,data=ordered 0 0
tmpfs /mnt/live/memory/xino tmpfs rw 0 0
aufs / aufs rw,xino=/mnt/live/memory/xino/.aufs.xino,nowarn_perm 0 0
/dev/loop1 /mnt/live/memory/images/01-Core-230414.lzm squashfs ro,noatime 0 0
/dev/loop2 /mnt/live/memory/images/02-Xorg-1.4-170414.lzm squashfs ro,noatime 0 0
/dev/loop3 /mnt/live/memory/images/07-Common-091214.lzm squashfs ro,noatime 0 0
/dev/loop4 /mnt/live/memory/images/09-xfce4-4.4.2-230414.lzm squashfs ro,noatime 0 0
/dev/loop5 /mnt/live/memory/images/NVidia-Nimblex-13.lzm squashfs ro,noatime 0 0
/dev/loop6 /mnt/live/memory/images/glib-2.16-test.lzm squashfs ro,noatime 0 0
/dev/loop7 /mnt/live/memory/images/Audacity_1.2.6.lzm squashfs ro,noatime 0 0
/dev/loop8 /mnt/live/memory/images/Avidemux-2.4.4.lzm squashfs ro,noatime 0 0
/dev/loop9 /mnt/live/memory/images/Epdfview-5.lzm squashfs ro,noatime 0 0
/dev/loop10 /mnt/live/memory/images/Firefox-3.6.18-shared.lzm squashfs ro,noatime 0 0
/dev/loop11 /mnt/live/memory/images/Flash-10.0.15.lzm squashfs ro,noatime 0 0
/dev/loop12 /mnt/live/memory/images/FoxitReader.lzm squashfs ro,noatime 0 0
/dev/loop13 /mnt/live/memory/images/Gimp-2.4.5.lzm squashfs ro,noatime 0 0
/dev/loop14 /mnt/live/memory/images/LibreOffice-3.4.6-enGB-nopy.lzm squashfs ro,noatime 0 0
/dev/loop15 /mnt/live/memory/images/Mplayer-2009.lzm squashfs ro,noatime 0 0
/dev/loop16 /mnt/live/memory/images/Pipewalker-0.9.4.lzm squashfs ro,noatime 0 0
/dev/loop17 /mnt/live/memory/images/Powder_Toy.lzm squashfs ro,noatime 0 0
/dev/loop18 /mnt/live/memory/images/Seamonkey-2.9.1.lzm squashfs ro,noatime 0 0
/dev/loop19 /mnt/live/memory/images/Thunderbird-2.0.0.24.lzm squashfs ro,noatime 0 0
/dev/loop20 /mnt/live/memory/images/Vlc-0.8.6i-static.lzm squashfs ro,noatime 0 0
/dev/loop21 /mnt/live/memory/images/Xmms.lzm squashfs ro,noatime 0 0
/dev/loop22 /mnt/live/memory/images/Ysflight_Extra.lzm squashfs ro,noatime 0 0
/dev/loop23 /mnt/live/memory/images/Ysflight_JCraft.lzm squashfs ro,noatime 0 0
/dev/loop24 /mnt/live/memory/images/Ysflight_v3.lzm squashfs ro,noatime 0 0
/dev/loop25 /mnt/live/memory/images/adobereader-8.lzm squashfs ro,noatime 0 0
/dev/loop26 /mnt/live/memory/images/jre1.6.0_32.lzm squashfs ro,noatime 0 0
/dev/loop27 /mnt/live/memory/images/quorn-0.6.1.lzm squashfs ro,noatime 0 0
/dev/loop28 /mnt/live/memory/images/wine-1.1.20.lzm squashfs ro,noatime 0 0
/dev/hda2 /boot ext3 rw,noatime,data=ordered 0 0
proc /proc proc rw 0 0
sysfs /sys sysfs rw 0 0
tmpfs /dev tmpfs rw 0 0
devpts /dev/pts devpts rw 0 0
usbfs /proc/bus/usb usbfs rw 0 0
/dev/hda1 /mnt/hda1 fuseblk rw,noatime,user_id=0,group_id=0,allow_other 0 0
/dev/hda2 /mnt/hda2 ext3 rw,noatime,data=ordered 0 0
/dev/hda3 /mnt/hda3 ext3 rw,noatime,data=ordered 0 0
/dev/sda1 /mnt/sda1 vfat rw,noatime,fmask=0000,dmask=0000,codepage=cp437,iocharset=iso8859-1,shortname=mixed,check=s,quiet 0 0

mike

[gyro]

New improved version of 'showaufs':

If the branch directory is a mount point, it checks that it is a 'loop' device before decoding it using 'losetup'.

The previous version would show nothing as the branch, if it was a savefolder implemented by a 'mount -o bind'.

Get it via initial post.

gyro