LVM.DLL
This component is used by the Logical Volume Manager.
This library contains the Logical Volume Manager functions.
Newer LVM.DLL Forwarder
eComStation 2.x included a new LVM.DLL that forwards some of it's functions to IVM.DLL. It was reported that the newer "LVM.DLL forwarder" bypasses a couple of checks so that Bootable JFS and Air-BOOT can work seamlessly.
The newer "LVM.DLL forwarder" intercepts some functions like:
- The Start_Logging and Stop_Logging functions to enable merging its own log data with the LVM log (when LVM logging is turned on).
- It also wraps Open_LVM_Engine to save copies of any Windows NT disk signatures from the MBR, and wraps Commit_Changes to restore them back (except when an explicit newmbr operation was performed).
- It wraps Get_Volume_Information to always report compatibility volumes as Bootable if Air-Boot is installed.
- And similarly wraps Get_Valid_Options to report than a compatibility volume can be set as Installable if Air-Boot is installed.
Tip: Set the environment variable LVM_LOGWRAPPER=1, then run LVM with the /startlog parameter, the wrapper's own log will get added to the log generated by LVM.
Version
| Date | Version | Size | Comments |
|---|---|---|---|
| 2004-09-10 08:51 | 1.01 | 73,551 bytes | Forwarder for Logical Volume Manager by eComStation Development Group. This version seems to be a forwarder to IVM.DLL which looks like the original LVM.DLL renamed. |
DLL Entry Points
| 1 | Get_Partition_Handle | 2 | Remove_Boot_Manager |
| 3 | Get_Boot_Manager_Menu | 4 | Assign_Drive_Letter |
| 5 | ADD_TO_BOOT_MANAGER16 | 6 | REMOVE_BOOT_MANAGER16 |
| 7 | Set_Min_Install_Size | 8 | INSTALL_BOOT_MANAGER16 |
| 9 | Export_Configuration | 10 | ASSIGN_DRIVE_LETTER16 |
| 11 | GET_PARTITION_HANDLE16 | 12 | SET_MIN_INSTALL_SIZE16 |
| 13 | EXPORT_CONFIGURATION16 | 14 | Get_Installable_Volume |
| 15 | Hide_Volume | 16 | Get_Drive_Control_Data |
| 17 | GET_BOOT_MANAGER_MENU16 | 18 | Read_Sectors |
| 19 | HIDE_VOLUME16 | 20 | Get_Volume_Information |
| 21 | Set_OS_Flag | 22 | Get_LVM_View |
| 23 | Stop_Logging | 24 | Set_Startable |
| 25 | Start_Logging | 26 | SET_OS_FLAG16 |
| 27 | GET_INSTALLABLE_VOLUME16 | 28 | READ_SECTORS16 |
| 29 | GET_DRIVE_CONTROL_DATA16 | 30 | Create_Volume |
| 31 | Delete_Volume | 32 | GET_LVM_VIEW16 |
| 33 | Write_Sectors | 34 | STOP_LOGGING16 |
| 35 | Get_Boot_Manager_Handle | 36 | Expand_Volume |
| 37 | GET_VOLUME_INFORMATION16 | 38 | GET_BOOT_MANAGER_HANDLE16 |
| 39 | Get_Partitions | 40 | SET_STARTABLE16 |
| 41 | Commit_Changes | 42 | Get_Boot_Manager_Options |
| 43 | START_LOGGING16 | 44 | Remove_From_Boot_Manager |
| 45 | Set_Boot_Manager_Options | 46 | Set_Free_Space_Threshold |
| 47 | CREATE_VOLUME16 | 48 | Boot_Manager_Is_Installed |
| 49 | DELETE_VOLUME16 | 50 | Get_Volume_Control_Data |
| 51 | WRITE_SECTORS16 | 52 | EXPAND_VOLUME16 |
| 53 | GET_BOOT_MANAGER_OPTIONS16 | 54 | Get_Partition_Information |
| 55 | REMOVE_FROM_BOOT_MANAGER16 | 56 | SET_BOOT_MANAGER_OPTIONS16 |
| 57 | GET_VOLUME_CONTROL_DATA16 | 58 | GET_PARTITIONS16 |
| 59 | COMMIT_CHANGES16 | 60 | SET_FREE_SPACE_THRESHOLD16 |
| 61 | Changes_Pending | 62 | CHANGES_PENDING16 |
| 63 | Set_Installable | 64 | Get_Reboot_Flag |
| 65 | Open_LVM_Engine | 66 | Set_Reboot_Flag |
| 67 | Reboot_Required | 68 | BOOT_MANAGER_IS_INSTALLED16 |
| 69 | Set_Active_Flag | 70 | Rediscover_PRMs |
| 71 | SET_INSTALLABLE16 | 72 | Close_LVM_Engine |
| 73 | GET_REBOOT_FLAG16 | 74 | OPEN_LVM_ENGINE16 |
| 75 | SET_REBOOT_FLAG16 | 76 | REBOOT_REQUIRED16 |
| 77 | GET_PARTITION_INFORMATION16 | 78 | SET_ACTIVE_FLAG16 |
| 79 | Create_Partition | 80 | Get_Reserved_Drive_Letters |
| 81 | Delete_Partition | 82 | REDISCOVER_PRMS16 |
| 83 | Get_Install_Flags | 84 | Get_Drive_Status |
| 85 | Set_Install_Flags | 86 | Get_Valid_Options |
| 87 | CLOSE_LVM_ENGINE16 | 88 | CREATE_PARTITION16 |
| 89 | DELETE_PARTITION16 | 90 | GET_DRIVE_STATUS16 |
| 91 | Refresh_LVM_Engine | 92 | GET_RESERVED_DRIVE_LETTERS16 |
| 93 | Get_Available_Drive_Letters | 94 | Free_Engine_Memory |
| 95 | GET_AVAILABLE_DRIVE_LETTERS16 | 96 | New_MBR |
| 97 | GET_INSTALL_FLAGS16 | 98 | Set_Name |
| 99 | SET_INSTALL_FLAGS16 | 100 | NEW_MBR16 |
| 101 | GET_VALID_OPTIONS16 | 102 | REFRESH_LVM_ENGINE16 |
| 103 | FREE_ENGINE_MEMORY16 | 104 | SET_NAME16 |
| 105 | Install_Boot_Manager | 106 | Add_To_Boot_Manager |