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Re: [dm-devel] dmsetup create linear with 4 devices not possible?



Dne 20.8.2018 v 11:06 Sverd Johnsen napsal(a):
[40309.478954] device-mapper: table: 254:15: linear: Invalid argument count

root bar /tmp # vgchange -ay looptest
     Logging initialised at Mon Aug 20 11:00:05 2018
     Activating logical volume looptest/testing.
     activation/volume_list configuration setting not defined: Checking
only host tags for looptest/testing.
     Creating looptest-testing
     Loading table for looptest-testing (254:15).
     Resuming looptest-testing (254:15).
     Activated 1 logical volumes in volume group looptest
   1 logical volume(s) in volume group "looptest" now active

root bar /tmp # dmsetup table /dev/mapper/looptest-testing
0 2088960 linear 7:0 2048
2088960 2088960 linear 7:1 2048
4177920 2088960 linear 7:2 2048
6266880 2088960 linear 7:3 2048

root bar /tmp # dmsetup table /dev/mapper/looptest-testing > test.table

root bar /tmp # vgchange -an looptest
     Logging initialised at Mon Aug 20 11:00:18 2018
     Deactivating logical volume looptest/testing.
     Removing looptest-testing (254:15)
     Deactivated 1 logical volumes in volume group looptest
   0 logical volume(s) in volume group "looptest" now active

root bar /tmp # dmsetup create test --table test.table
Invalid format on line 1 of table .
Command failed.

root bar /tmp # dmsetup create test --table "$(cat test.table)"
device-mapper: reload ioctl on test  failed: Invalid argument
Command failed.


And have you tried:

cat test.table | dmsetup create test


Zdenek


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