Cannot Open Chunk - S.O.S, Help, please !

Hi All, I have the fatal problem with OnLine 5.0, We have: mirrored root dbspace (partition Alfa, Beta) mirrored dspaces (partition Gama, Delta). I did install patch for SCO OpenServer 5.0.0, during this is kernel of system relinked. This caused that devices attached to Informix OnLine lost their original rights and got these rights: crw-------- sysinfo sysinfo alfa ... crw-------- sysinfo sysinfo delta I did restart server, then changed rights to Informix, but only for partition Alfa and Beta (root DBS). Mistake !!! After reboot OnLine exited with errors: Informix-OnLine Initialized - Shared memory Initialized Physical Recovery Started Checkpoint completed Physical Recovery Complete: 0 pages Restored Logical Recovery Complete 0 commited, 0 rolled back, 0 open, 0 bad locks on-line mode CANNOT OPEN PRIMARY CHUNK '/dev/rdsk/gama', errno=13 CANNOT OPEN MIRROR CHUNK '/dev/rdsk/delta', errno=13 checkpoint completed shutdown mode quiscent mode Informix online stopped I changed rights also for Gama and Delta, but late. When I invoke 'tbinit', I got following errors: Initializing, please wait... Can Not Open Primary Chunk '/dev/rdsk/gama' Can Not Open Mirror Chunk '/dev/rdsk/delta' tbinit: fatal error in shared memory initialization semop failed. errno: 36, proc id. 531 Into log (/usr/informix/online.log) is written only: Informix OnLine stopped Now I have set rights to Informix: crw-rw---- informix informix alfa ... crw-rw---- informix informix delta I still cannot initialize OnLine. Please help me !!! Unhappy Leos. P.S. Use also private e-mail, if possible. lur@aitix.anet.cz