[pve-devel] restrict scsi-block to /dev/disk/

[Dietmar Maurer]

Each unix device has a major and minor number:

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob;f=Documentation/devices.txt;h=00383186d8fb3e2c0fc4d5a12852844cb5b2721f;hb=fde7d9049e55ab85a390be7f415d74c9f62dd0f9

see 'man fstat' for detailes on how toö get those numbers (st_dev field)

alse see: 'man mknod' and 'man 2 mknod'

- Dietmar



> -----Original Message-----
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com]
> Sent: Montag, 12. März 2012 08:44
> To: Dietmar Maurer
> Cc: pve-devel at pve.proxmox.com
> Subject: Re: [pve-devel] restrict scsi-block to /dev/disk/
> 
> I don't known what is major/minor ;)
> 
> Could you provide an example ?
> 
> ----- Mail original -----
> 
> De: "Dietmar Maurer" <dietmar at proxmox.com>
> À: "Alexandre DERUMIER" <aderumier at odiso.com>
> Cc: pve-devel at pve.proxmox.com
> Envoyé: Lundi 12 Mars 2012 08:26:46
> Objet: RE: [pve-devel] restrict scsi-block to /dev/disk/
> 
> > Why do you mean by major/minor device number ?
> >
> >
> > we can also try to test if
> >
> > /sys/block/sdXXX/device/scsi_device
> >
> > exist
> >
> >
> > /dev/disk/by-id/scsi-XXXX are symlink to /dev/sdX
> 
> But testing major/minor requires one simple stat call - isn't that easier?
> 
> - Dietmar
> 
> 
> 
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> 
> 
> 	Alexandre D erumier
> Ingénieur Système
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