[LU-1083] tunefs.lustre generates incorrect message when PATH doesn't include /sbin

• Type: Bug
• Resolution: Duplicate
• Priority: Major
• Environment: RHEL 5.7, kernel 2.6.18-274.3.1.el5_lustre.g9500ebf
• Assignee: Jian Yu
• Reporter: Liam Forbes

Description

If I execute tunefs.lustre on the MDS/MGS or OSSes without /sbin in my PATH, it displays an error message stating the device has not been formatted with mkfs.lustre. This is incorrect. As soon as I add /sbin to my PATH, tunefs.lustre works fine.

pmds1:~$ sudo /usr/sbin/tunefs.lustre --print /dev/mapper/mpath0
checking for existing Lustre data: not found
tunefs.lustre FATAL: Device /dev/mapper/mpath0 has not been formatted with mkfs.lustre
tunefs.lustre: exiting with 19 (No such device)

pmds1:~$ export PATH=$PATH:/sbin

pmds1:~$ sudo /usr/sbin/tunefs.lustre --print /dev/mapper/mpath0
checking for existing Lustre data: found CONFIGS/mountdata
Reading CONFIGS/mountdata

Read previous values:
Target: wrkdir10-MDT0000
Index: 0
Lustre FS: wrkdir10
Mount type: ldiskfs
Flags: 0x5
(MDT MGS )
Persistent mount opts: iopen_nopriv,user_xattr,errors=remount-ro
Parameters: failover.node=10.55.128.122@o2ib,10.54.128.122@tcp mdt.quota_type=u

Permanent disk data:
Target: wrkdir10-MDT0000
Index: 0
Lustre FS: wrkdir10
Mount type: ldiskfs
Flags: 0x5
(MDT MGS )
Persistent mount opts: iopen_nopriv,user_xattr,errors=remount-ro
Parameters: failover.node=10.55.128.122@o2ib,10.54.128.122@tcp mdt.quota_type=u

exiting before disk write.

Issue Links

• is related to: LU-13241 mount.lustre for large filesystem runs slow debugfs commands

Comments

[Jian Yu]

Patch for master branch is in http://review.whamcloud.com/2571.

[Andreas Dilger]

Yu Jian, can you please improve the error message to report "debugfs: not found" or whatever the actual problem is. This is confusing enough that someone might think the device is not being used by Lustre and accidentally reformat it.