[Fedora-livecd-list] umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy ?

[Ed Sutton]

After every livecd-creator build I must restart and reboot my CentOS 5.2 machine using the fsck option to fix disk issues I do not understand.  I tried a work-around without success for a similar sounding problem:

Bug 509427 - livecd-creator fails to unmount
https://bugzilla.redhat.com/show_bug.cgi?id=509427

Any suggestions on troubleshooting are much appreciated.

-Ed

Kickstart Output
-------------------------------------------------------
  Created: /var/lib/jenkins/jobs/LRADDS_SBC_OE_LIVECD_TEST/workspace/Installation_Files/src_live_root/isolinux/initrd0.img
find: /var/tmp/imgcreate-cCEUw_/install_root/proc/14833: No such file or directory
Execute: umount-hack.ks...
+ /usr/sbin/lsof /dev/loop0 /dev/loop1 /dev/loop2 /dev/loop3 /dev/loop4 /dev/loop5 /dev/loop6 /dev/loop7
+ grep -v /var/tmp/imgcreate-cCEUw_/install_root/tmp/ks-script-jnzbSQ
+ grep /var/tmp/imgcreate-cCEUw_/install_root
+ set +x
umount: /var/tmp/imgcreate-cCEUw_/install_root/proc: device is busy
umount: /var/tmp/imgcreate-cCEUw_/install_root/proc: device is busy
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy
ioctl: LOOP_CLR_FD: Device or resource busy
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy
e2fsck 1.39 (29-May-2006)
sbc-dds-livecd-i: recovering journal
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information

sbc-dds-livecd-i: ***** FILE SYSTEM WAS MODIFIED *****
sbc-dds-livecd-i: 68102/524288 files (0.4% non-contiguous), 443027/1048576 blocks
e2fsck 1.39 (29-May-2006)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
sbc-dds-livecd-i: 68102/229376 files (0.5% non-contiguous), 433261/433261 blocks
Creating little endian 3.0 filesystem on /var/tmp/imgcreate-cCEUw_/iso-xNZuGZ/LiveOS/osmin.img, block size 65536.

Little endian filesystem, data block size 65536, compressed data, compressed metadata, compressed fragments
Filesystem size 0.25 Kbytes (0.00 Mbytes)
        3.04% of uncompressed filesystem size (8.20 Kbytes)
Inode table size 43 bytes (0.04 Kbytes)
        69.35% of uncompressed inode table size (62 bytes)
Directory table size 21 bytes (0.02 Kbytes)
        100.00% of uncompressed directory table size (21 bytes)
Number of duplicate files found 0
Number of inodes 2
Number of files 1
Number of fragments 1
Number of symbolic links  0
Number of device nodes 0
Number of fifo nodes 0
Number of socket nodes 0
Number of directories 1
Number of uids 1
        root (0)
Number of gids 0
Creating little endian 3.0 filesystem on /var/tmp/imgcreate-cCEUw_/iso-xNZuGZ/LiveOS/squashfs.img, block size 65536.

Little endian filesystem, data block size 65536, compressed data, compressed metadata, compressed fragments
Filesystem size 569229.82 Kbytes (555.89 Mbytes)
        13.57% of uncompressed filesystem size (4194560.32 Kbytes)
Inode table size 66113 bytes (64.56 Kbytes)
        25.20% of uncompressed inode table size (262306 bytes)
Directory table size 46 bytes (0.04 Kbytes)
        100.00% of uncompressed directory table size (46 bytes)
Number of duplicate files found 0
Number of inodes 3
Number of files 1
Number of fragments 0
Number of symbolic links  0
Number of device nodes 0
Number of fifo nodes 0
Number of socket nodes 0
Number of directories 2
Number of uids 1
        root (0)
Number of gids 0
INFO:   UTF-8 character encoding detected by locale settings.
        Assuming UTF-8 encoded filenames on source filesystem,
        use -input-charset to override.
Unknown file type (unallocated) /var/tmp/imgcreate-cCEUw_/iso-xNZuGZ/.. - ignoring and continuing.
Size of boot image is 4 sectors -> No emulation
  1.70% done, estimate finish Thu Aug  4 14:55:14 2011
  3.39% done, estimate finish Thu Aug  4 14:55:14 2011
...
 98.19% done, estimate finish Thu Aug  4 14:55:18 2011
 99.88% done, estimate finish Thu Aug  4 14:55:19 2011
Total translation table size: 4728
Total rockridge attributes bytes: 1680
Total directory bytes: 4980
Path table size(bytes): 40
Max brk space used 0
295359 extents written (576 MB)
isomd5sum not installed; not setting up mediacheck
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy
umount: /var/tmp/imgcreate-cCEUw_/install_root: device is busy



lsof
----------------------------------------------------
/usr/sbin/lsof |grep loop
loop0      4831      root  cwd       DIR      253,0     4096          2 /
loop0      4831      root  rtd       DIR      253,0     4096          2 /
loop0      4831      root  txt   unknown                                /proc/4831/exe
loop1     10369      root  cwd       DIR      253,0     4096          2 /
loop1     10369      root  rtd       DIR      253,0     4096          2 /
loop1     10369      root  txt   unknown                                /proc/10369/exe