[LU-5315] mkfs.lustre FATAL: unhandled fs type 1 'ldiskfs'

• Type: Bug
• Resolution: Cannot Reproduce
• Priority: Minor
• Affects Version/s: Lustre 2.6.0
• Severity: 3
• Assignee: Emoly Liu
• Reporter: Emoly Liu

Description

I hit this error when I run mkfs.lustre as before:

[root@centos6-1 tests]# LOAD=yes sh llmount.sh 
Loading modules from /root/master/lustre/tests/..
detected 2 online CPUs by sysfs
Force libcfs to create 2 CPU partitions
../libcfs/libcfs/libcfs options: 'cpu_npartitions=2'
debug=vfstrace rpctrace dlmtrace neterror ha config 		      ioctl super lfsck
subsystem_debug=all -lnet -lnd -pinger
gss/krb5 is not supported
quota/lquota options: 'hash_lqs_cur_bits=3'
[root@centos6-1 tests]# ../utils/mkfs.lustre --mgs --fsname=lustre --mdt --index=0 --backfstype=ldiskfs --device-size=200000 --reformat /tmp/lustre-mdt1

mkfs.lustre FATAL: unhandled fs type 1 'ldiskfs'

mkfs.lustre FATAL: unable to prepare backend (22)
mkfs.lustre: exiting with 22 (Invalid argument)

It happened because load_backfs_module(mount_type=LDD_MT_LDISKFS) failed in osd_init(). Running gdb showed

468			dirname = getenv("LUSTRE");
(gdb) n
469			if (dirname) {
(gdb) p dirname
$1 = 0x0
(gdb) n
507			return NULL;

Failed to use locally built modules.

This code is from the patch http://review.whamcloud.com/#/c/10468.

Issue Links

• is related to: LU-17079 Refactor mkfs/mount plugin system