Hi all, I find block device information in sysfs is accurate and complete. Firstly run lsblk -bPo NAME,MAJ:MIN It shows NAME="vda" MAJ:MIN="253:0" NAME="vda1" MAJ:MIN="253:1" When there is multipath, it shows NAME="35000cca68ac8e2fd" MAJ:MIN="253:0" NAME="35000cca68ac8e2fdp1" MAJ:MIN="253:1" Then we parse the major and min, and cat the related sysfs uevent file cat /sys/dev/block/253\:0/uevent It shows MAJOR=253 MINOR=0 DEVNAME=vda DEVTYPE=disk When there is multipath, it shows MAJOR=253 MINOR=0 DEVNAME=dm-0 DEVTYPE=disk The "DEVNAME=vda" or "DEVNAME=dm-0" is the device node name under the "/dev/" So there can be /dev/vda or /dev/dm-0 In fact, on my machine, the multipath device node is a link to dm-0 /dev/mapper/35000cca68ac8e2fd -> ../dm-0 So we can show in front-end like following. vda1 (/dev/vda1) 35000cca68ac8e2fd (/dev/dm-0) The use mostly cares the name, the path is just supplement information. User just asks front-end to use "vda1" or "35000cca68ac8e2fd" to create pool, then we map the names to path. In this way we don't need to blkid to determine the path, and can drop the check on" blkid path being not None". Test on Fedora and Ubuntu. Generally speaking, I also can accept a temp solution just assuming all NAME listed by lsblk can be mapped to "/dev/NAME". We just need to check if "/dev/NAME" does exist or not, if not, skip this device. I'm afraid I have no time to finish a second version of the patch. Maybe Aline or Daniel can help me. I feel very sorry to not have time to finish the patch I started. Thanks very much! -- Thanks and best regards! Zhou Zheng Sheng / 周征晟 E-mail: zhshzhou@linux.vnet.ibm.com Telephone: 86-10-82454397 -- project-kimchi mailing list <project-kimchi@googlegroups.com> https://groups.google.com/forum/#!forum/project-kimchi --- You received this message because you are subscribed to the Google Groups "project-kimchi" group. To unsubscribe from this group and stop receiving emails from it, send an email to project-kimchi+unsubscribe@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.