I see this problem when I try to install drscheme, mzscheme, *and* slib. If I get rid of slib, then mzscheme gives the error but installs fine.
jeff $ cat /etc/debian_version 4.0 $ sudo apt-get install drscheme mzscheme slib Reading package lists... Done Building dependency tree... Done The following NEW packages will be installed: drscheme mzscheme slib 0 upgraded, 3 newly installed, 0 to remove and 111 not upgraded. Need to get 17.5MB of archives. After unpacking 86.1MB of additional disk space will be used. Get:1 http://mirror.cs.swarthmore.edu etch/main mzscheme 1:352-6 [5064kB] Get:2 http://mirror.cs.swarthmore.edu etch/main drscheme 1:352-6 [11.5MB] Get:3 http://mirror.cs.swarthmore.edu etch/main slib 3a4-4 [887kB] Fetched 17.5MB in 1s (11.5MB/s) Selecting previously deselected package mzscheme. (Reading database ... 170638 files and directories currently installed.) Unpacking mzscheme (from .../mzscheme_1%3a352-6_i386.deb) ... Selecting previously deselected package drscheme. Unpacking drscheme (from .../drscheme_1%3a352-6_i386.deb) ... Selecting previously deselected package slib. Unpacking slib (from .../archives/slib_3a4-4_all.deb) ... Setting up mzscheme (352-6) ... mkdir: cannot create directory `/usr/local/lib/plt': Read-only file system Cataloging SLIB routines... reference to undefined identifier: slib:features dpkg: error processing mzscheme (--configure): subprocess post-installation script returned error exit status 1 dpkg: dependency problems prevent configuration of drscheme: drscheme depends on mzscheme (= 1:352-6); however: Package mzscheme is not configured yet. drscheme depends on mzscheme; however: Package mzscheme is not configured yet. dpkg: error processing drscheme (--configure): dependency problems - leaving unconfigured Setting up slib (3a4-4) ... Errors were encountered while processing: mzscheme drscheme E: Sub-process /usr/bin/dpkg returned an error code (1) $ $ dpkg -l | grep scheme iU drscheme 352-6 PLT Scheme Programming Environment iF mzscheme 352-6 PLT Scheme Interpreter $ $ sudo dpkg --purge slib (Reading database ... 178590 files and directories currently installed.) Removing slib ... $ sudo apt-get install drscheme mzscheme Reading package lists... Done Building dependency tree... Done drscheme is already the newest version. mzscheme is already the newest version. 0 upgraded, 0 newly installed, 0 to remove and 111 not upgraded. 2 not fully installed or removed. Need to get 0B of archives. After unpacking 0B of additional disk space will be used. Setting up mzscheme (352-6) ... mkdir: cannot create directory `/usr/local/lib/plt': Read-only file system Setting up drscheme (352-6) ... $ $ dpkg -l | grep scheme ii drscheme 352-6 PLT Scheme Programming Environment ii mzscheme 352-6 PLT Scheme Interpreter $ -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]