Am Dienstag, den 04.08.2009, 14:40 +0200 schrieb martin f krafft: > also sprach Felix Zielcke <fziel...@z-51.de> [2009.07.24.1410 +0200]: > > We currently use in grub-setup ioctl (GET_ARRAY_INFO) and ioctl > > (GET_DISK_INFO) and unfortunately they return the major and minor of the > > device and not the name of the device file. > > But you have to somehow map that to the device file later, right? > > mdadm-lab:~# ls -la /dev/vda > brw-rw---- 1 root disk 254, 0 2009-08-04 13:53 /dev/vda > > /dev/vda is a regular device like any other, except that it uses the > 'experimental' major number 254. I don't understand why that should > be treated any differently than e.g. a SCSI disk with major number > 8.
The problem is that we currently create the filename of the device by using the major and minor Like this: if (major == SCSI_DISK0_MAJOR) sprintf (name, "/dev/sd%c", 'a' + minor / 16); This just doestn't work if the major is for local use according to the kernel docs. We could make 254 map to /dev/vda but maybe it's wrong then for someone else. Unfortunately I don't know why we have 2 different methods of dealing with RAID disks. The ioctl method in grub-setup and the method to just read the md superblock on all disks and add them to a list in grub-probe. -- Felix Zielcke Proud Debian Maintainer -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org