Hi, [please CC: me] while trying to use md to overcome limitations of dm, I stumbled upon the following problem: It is impossible to have more than 4 partitioned md devices since mdadm will create the 5th device with major:minor 255:0, which is bogus. Way to reproduce the problem: linux:~ # mdadm --stop --scan linux:~ # rm /dev/md_d* linux:~ # sync linux:~ # mdadm -B /dev/md_d0 -f -l linear -n 1 -ap63 /dev/hdb5 mdadm: array /dev/md_d0 built and started. linux:~ # mdadm -B /dev/md_d1 -f -l linear -n 1 -ap63 /dev/hdb6 mdadm: array /dev/md_d1 built and started. linux:~ # mdadm -B /dev/md_d2 -f -l linear -n 1 -ap63 /dev/hdb7 mdadm: array /dev/md_d2 built and started. linux:~ # mdadm -B /dev/md_d3 -f -l linear -n 1 -ap63 /dev/hdb8 mdadm: array /dev/md_d3 built and started. linux:~ # mdadm -B /dev/md_d4 -f -l linear -n 1 -ap63 /dev/hdb9 mdadm: error opening /dev/md_d4: No such device or address linux:~ # mdadm --version mdadm - v1.8.1 - 05 November 2004 linux:~ # uname -a Linux linux 2.6.10-rc2suseconfig #5 Tue Nov 23 14:12:13 CET 2004 i686 i686 i386 GNU/Linux linux:~ # Regards, Carl-Daniel -- http://www.hailfinger.org/ - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
