[R] 00LOCK error with site-library

[Mark W Kimpel]

I'm still having problems with this 00LOCK error. Tonight I recompiled 
R-devel from scratch, created a new site-library directory after moving 
the old one to scratch storage, and tried reinstalling my packages. 13 
out of 290 packages successfully reinstalled and, once again, 00LOCK has 
appeared.

I tried to hack around this by installing packages one at a time, each 
time looking for 00LOCK and, if present, unlinking it recursively. This 
fails, although I can unlink other packages with identical permissions 
from within R. Outside of R, in the bash shell, I can rm -r 00LOCK 
without any problems. What follows is just some output demonstrating this.

Why does unlink not work for this one particular directory?
Mark

  x <- unlink("00LOCK", recursive = TRUE)
 > x
[1] 1 # unlink fails
 > dir()
  [1] "00LOCK"                  "acepack"
  [3] "affxparser"              "affyio"
  [5] "AffymetrixDataTestFiles" "akima"
  [7] "amap"                    "aws"
  [9] "Biobase"                 "hapmap100kxba"
[11] "kernlab"                 "plasmodiumanophelescdf"
[13] "R.css"                   "som"
[15] "stjudem"                 "xlahomology"
 > ?unlink
 > y <- unlink(x = "00LOCK", recursive = TRUE)
 > y
[1] 1
 > y <- unlink(x = "acepack", recursive = TRUE)
 > y
[1] 0 #u unlink succeeds

 From the command line:

ls -al

drwxr-xr-x   3 mkimpel psych 4096 2007-12-11 23:13 00LOCK
drwxr-xr-x  13 mkimpel psych 4096 2007-12-11 23:12 affxparser
drwxr-xr-x  10 mkimpel psych 4096 2007-12-11 23:12 affyio



Mark W. Kimpel MD  ** Neuroinformatics ** Dept. of Psychiatry
Indiana University School of Medicine

15032 Hunter Court, Westfield, IN  46074

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mwkimpel<at>gmail<dot>com