Dear sir: I am trying to install starlingx following the all-in-one link:https://docs.starlingx.io/deploy_install_guides/r3_release/bare_metal/aio_si.... However I stuck in the "ansible" step. From the dmesg, I can see the errors below: [79591.931815] block drbd0: Resize while not connected was forced by the user! [79592.058071] block drbd8: local WRITE IO error sector 1296+4088 on dm-8 [79592.058083] block drbd8: disk( UpToDate -> Failed ) [79592.058113] block drbd8: Local IO failed in __req_mod. Detaching... [79592.058146] block drbd8: IO ERROR: neither local nor remote data, sector 0+0 [79592.058178] block drbd8: helper command: /sbin/drbdadm pri-on-incon-degr minor-8 [79592.061512] block drbd8: IO ERROR: neither local nor remote data, sector 5384+4096 [79592.061603] drbd8: WRITE SAME failed. Manually zeroing. [79592.061664] block drbd8: IO ERROR: neither local nor remote data, sector 5384+256 [79592.061764] block drbd8: IO ERROR: neither local nor remote data, sector 5640+256 [79592.061859] block drbd8: IO ERROR: neither local nor remote data, sector 5896+256 [79592.061880] block drbd8: helper command: /sbin/drbdadm pri-on-incon-degr minor-8 exit code 0 (0x0) [79592.061972] block drbd8: 1024 MB (262127 bits) marked out-of-sync by on disk bit-map. [79592.061988] block drbd8: disk( Failed -> Diskless ) [79592.835252] block drbd0: local WRITE IO error sector 2328+4080 on dm-3 [79592.835262] block drbd0: disk( UpToDate -> Failed ) [79592.835293] block drbd0: Local IO failed in __req_mod. Detaching... [79592.835369] drbd0: WRITE SAME failed. Manually zeroing. [79592.835388] block drbd0: helper command: /sbin/drbdadm pri-on-incon-degr minor-0 [79592.838928] block drbd0: helper command: /sbin/drbdadm pri-on-incon-degr minor-0 exit code 0 (0x0) [79592.838970] block drbd0: 2048 MB (524263 bits) marked out-of-sync by on disk bit-map. [79592.838980] block drbd0: disk( Failed -> Diskless ) [79593.038394] EXT4-fs error (device drbd0): ext4_wait_block_bitmap:516: comm initdb: Cannot read block bitmap - block_group = 1, block_bitmap = 258 [79593.038541] Buffer I/O error on dev drbd0, logical block 0, lost sync page write [79593.038686] EXT4-fs warning (device drbd0): ext4_end_bio:302: I/O error -5 writing to inode 29 (offset 0 size 20480 starting block 65536) [79593.038689] Buffer I/O error on device drbd0, logical block 65536 [79593.038743] Buffer I/O error on device drbd0, logical block 65537 [79593.038805] Buffer I/O error on device drbd0, logical block 65538 [79593.038858] Buffer I/O error on device drbd0, logical block 65539 [79593.038911] Buffer I/O error on device drbd0, logical block 65540 [79595.501408] block drbd2: Resize while not connected was forced by the user! [79595.701486] EXT4-fs (drbd5): mounted filesystem with ordered data mode. Opts: (null) [79595.731488] EXT4-fs (drbd5): re-mounted. Opts: (null) [79595.755858] block drbd5: Resize while not connected was forced by the user! [79596.382427] EXT4-fs (drbd1): mounted filesystem with ordered data mode. Opts: (null) [79596.427131] EXT4-fs (drbd1): re-mounted. Opts: (null) [79596.456439] block drbd1: Resize while not connected was forced by the user! [79596.763258] block drbd1: local WRITE IO error sector 2320+4088 on dm-9 [79596.763270] block drbd1: disk( UpToDate -> Failed ) [79596.763304] block drbd1: Local IO failed in __req_mod. Detaching... [79596.763412] block drbd1: helper command: /sbin/drbdadm pri-on-incon-degr minor-1 [79596.767304] block drbd1: helper command: /sbin/drbdadm pri-on-incon-degr minor-1 exit code 0 (0x0) [79596.767348] block drbd1: 2048 MB (524263 bits) marked out-of-sync by on disk bit-map. [79596.767358] block drbd1: disk( Failed -> Diskless ) [79596.788531] drbd1: WRITE SAME failed. Manually zeroing. [79597.168463] block drbd7: role( Secondary -> Primary ) disk( Inconsistent -> UpToDate ) [79597.179035] block drbd7: Forced to consider local data as UpToDate! [79597.179053] block drbd7: new current UUID 9759105C28A7AAAD:0000000000000004:0000000000000000:0000000000000000 [79597.616990] block drbd0: 52 messages suppressed in /builddir/build/BUILD/drbd-8.4.11-1/obj/default/drbd_req.c:1446. [79597.616999] block drbd0: IO ERROR: neither local nor remote data, sector 1572864+8 [79597.617096] Buffer I/O error on dev drbd0, logical block 196608, lost sync page write [79597.617187] JBD2: Error -5 detected when updating journal superblock for drbd0-8. [79597.617274] Aborting journal on device drbd0-8. [79597.617328] Buffer I/O error on dev drbd0, logical block 196608, lost sync page write [79597.617417] JBD2: Error -5 detected when updating journal superblock for drbd0-8. [79597.680678] Buffer I/O error on dev drbd8, logical block 65536, lost sync page write [79597.680772] JBD2: Error -5 detected when updating journal superblock for drbd8-8. [79597.680859] Aborting journal on device drbd8-8. [79597.680914] Buffer I/O error on dev drbd8, logical block 65536, lost sync page write [79597.681003] JBD2: Error -5 detected when updating journal superblock for drbd8-8. [79597.760212] EXT4-fs (drbd0): previous I/O error to superblock detected [79597.760337] Buffer I/O error on dev drbd0, logical block 0, lost sync page write [79597.760450] EXT4-fs error (device drbd0): ext4_journal_check_start:56: Detected aborted journal [79597.760551] EXT4-fs (drbd0): Remounting filesystem read-only [79597.760620] EXT4-fs (drbd0): previous I/O error to superblock detected [79597.760682] Buffer I/O error on dev drbd0, logical block 0, lost sync page write [79600.177668] block drbd5: local WRITE IO error sector 1296+4088 on dm-2 [79600.177680] block drbd5: disk( UpToDate -> Failed ) [79600.177711] block drbd5: Local IO failed in __req_mod. Detaching... [79600.177786] drbd5: WRITE SAME failed. Manually zeroing. [79600.177813] block drbd5: helper command: /sbin/drbdadm pri-on-incon-degr minor-5 [79600.181353] block drbd5: helper command: /sbin/drbdadm pri-on-incon-degr minor-5 exit code 0 (0x0) [79600.181396] block drbd5: 1024 MB (262127 bits) marked out-of-sync by on disk bit-map. [79600.181406] block drbd5: disk( Failed -> Diskless ) [79601.244660] EXT4-fs error (device drbd1): ext4_wait_block_bitmap:516: comm async_310: Cannot read block bitmap - block_group = 1, block_bitmap = 258 [79601.244825] Buffer I/O error on dev drbd1, logical block 0, lost sync page write [79601.244989] EXT4-fs warning (device drbd1): ext4_end_bio:302: I/O error -5 writing to inode 17 (offset 0 size 4096 starting block 65536) [79601.244994] Buffer I/O error on device drbd1, logical block 65536 [79601.607395] Buffer I/O error on dev drbd1, logical block 196608, lost sync page write [79601.607495] JBD2: Error -5 detected when updating journal superblock for drbd1-8. [79601.607582] Aborting journal on device drbd1-8. [79601.607638] Buffer I/O error on dev drbd1, logical block 196608, lost sync page write [79601.607727] JBD2: Error -5 detected when updating journal superblock for drbd1-8. [79602.351833] EXT4-fs (drbd1): previous I/O error to superblock detected [79602.351905] block drbd1: 28 messages suppressed in /builddir/build/BUILD/drbd-8.4.11-1/obj/default/drbd_req.c:1446. [79602.351909] block drbd1: IO ERROR: neither local nor remote data, sector 0+8 [79602.351970] Buffer I/O error on dev drbd1, logical block 0, lost sync page write [79602.352063] EXT4-fs error (device drbd1): ext4_journal_check_start:56: Detected aborted journal [79602.352159] EXT4-fs (drbd1): Remounting filesystem read-only [79602.352216] EXT4-fs (drbd1): previous I/O error to superblock detected [79602.352274] Buffer I/O error on dev drbd1, logical block 0, lost sync page write [79605.662600] Buffer I/O error on dev drbd5, logical block 65536, lost sync page write [79605.662694] JBD2: Error -5 detected when updating journal superblock for drbd5-8. [79605.662781] Aborting journal on device drbd5-8. [79605.662836] Buffer I/O error on dev drbd5, logical block 65536, lost sync page write [79605.662924] JBD2: Error -5 detected when updating journal superblock for drbd5-8. [80656.347102] block drbd8: 3 messages suppressed in /builddir/build/BUILD/drbd-8.4.11-1/obj/default/drbd_req.c:1446. [80656.347111] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80656.347330] EXT4-fs warning (device drbd8): __ext4_read_dirblock:902: error reading directory block (ino 2, block 0) [80656.347372] block drbd8: IO ERROR: neither local nor remote data, sector 0+8 [80656.347586] Buffer I/O error on dev drbd8, logical block 0, lost sync page write [80656.347798] EXT4-fs error (device drbd8): ext4_journal_check_start:56: Detected aborted journal [80656.348118] EXT4-fs (drbd8): Remounting filesystem read-only [80656.348130] EXT4-fs (drbd8): previous I/O error to superblock detected [80656.348135] block drbd8: IO ERROR: neither local nor remote data, sector 0+8 [80656.348140] Buffer I/O error on dev drbd8, logical block 0, lost sync page write [80661.007923] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80661.008142] EXT4-fs warning (device drbd8): __ext4_read_dirblock:902: error reading directory block (ino 2, block 0) [80663.424845] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80663.425063] EXT4-fs warning (device drbd8): __ext4_read_dirblock:902: error reading directory block (ino 2, block 0) [80670.001525] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80670.001751] EXT4-fs warning (device drbd8): __ext4_read_dirblock:902: error reading directory block (ino 2, block 0) [80817.182038] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80817.182271] EXT4-fs error (device drbd8): ext4_find_entry:1312: inode #2: comm sh: reading directory lblock 0 [80817.182529] EXT4-fs (drbd8): previous I/O error to superblock detected [80817.182723] block drbd8: IO ERROR: neither local nor remote data, sector 0+8 [80817.182956] Buffer I/O error on dev drbd8, logical block 0, lost sync page write [80817.186801] block drbd8: IO ERROR: neither local nor remote data, sector 1096+8 [80817.187036] EXT4-fs error (device drbd8): ext4_find_entry:1312: inode #2: comm sh: reading directory lblock 0 [80817.187271] EXT4-fs (drbd8): previous I/O error to superblock detected [80817.187457] block drbd8: IO ERROR: neither local nor remote data, sector 0+8 [80817.187648] Buffer I/O error on dev drbd8, logical block 0, lost sync page write I guess there are something wrong with drbd, but I am not sure about the problem. Do you have any ideas or do you need more information to solve it? Thanks. yours, zhou qingyang.