mediainit

[ikbea]

Hi all,

when I run
# mediainit /dev/dsk/c4t1d0
mediainit: character(raw) device special file required

The volume group and logical volume were already removed

Thanks a lot

[Devender Khatana · Accepted solution]

Hi,

As it is indicating use

#mediainit /dev/rdsk/c4t1d0

HTH,
Devender

[ikbea]

Moreover, I changed all file to mode 777 under /dev/dsk/*

[Devender Khatana]

Hi,

The problem reported in not due to perms. It seems you are not aware that in unix we have two sort of device files for disks one is block & the other is character or raw. The block device files are indicated by /dev/dsk/cxtydz & the character or raw device files are indicated by /dev/rdsk/cxtydz. You defined block device file for a command that expects character device file & it indicated you for the same.

So repeat the command with /dev/rdsk/cxtydz & it should be fine. I also assume you are aware of the other implications of the mediainit which may lead your disks to unusable.

HTH,
Devender

[ikbea]

I run /dev/rdsk, and no error returned immidately.

At the same time, I run "dd" command to erase another disk, do it has any impact on mediainit?

Thanks again

[Devender Khatana]

Hi,

No if you have dd running on another disk it should not cause any problems. Morover if both disk belongs to the same controller then obviously the resluts will be quite slow, so if you have multiple disks to be erased then you two disks of seperate controllers simultaneously for best results.

HTH,
Devender

[ikbea]

Thanks.