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edd-utils [2006/09/08 12:51]
mcb30
edd-utils [2006/09/09 13:09]
mcb30 Added page title
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-====== OVERVIEW ====== 
- 
-mkeddlinks is a simple utility which creates symlinks for the BIOS INT 
-13 devices present at the time the system booted. ​ For example: 
- 
-  [root@dolphin /]# mkeddlinks 
-  [root@dolphin /]# ls -l /dev/bd* 
-  lrwxrwxrwx ​ 1 root root 3 Sep  7 04:07 /dev/bda -> hda 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bda1 -> hda1 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bda2 -> hda2 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bda5 -> hda5 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bda6 -> hda6 
-  lrwxrwxrwx ​ 1 root root 3 Sep  7 04:07 /dev/bdb -> hdc 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bdb1 -> hdc1 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bdb2 -> hdc2 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bdb5 -> hdc5 
-  lrwxrwxrwx ​ 1 root root 4 Sep  7 04:07 /dev/bdb6 -> hdc6 
- 
-It is designed to be incorporated into initial ramdisk images 
-(initrds) and to be run immediately before the root filesystem is 
-mounted. ​ The mount command can then use e.g. /dev/bda1 in order to 
-mount the first partition from whichever device the system booted 
-from, without needing to know where this device is currently attached. 
- 
-====== DOWNLOADING ====== 
- 
-You can obtain edd-utils from https://​sourceforge.net/​project/​showfiles.php?​group_id=176708&​package_id=203341 
- 
-====== INTERNALS ====== 
- 
-mkeddlinks uses the information provided by the "​edd"​ module in 2.6 
-kernels via the /​sys/​firmware/​edd directory. ​ It reads the 
-"​mbr_signature"​ file of each INT 13 device found via this directory, 
-and matches it against the signature of all disks in the system (found 
-via /​proc/​partitions). ​ When a match is found, symlinks are created 
-for the disk device and all partitions within the disk. 
  

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