Connectrix MDS: Falha no upgrade no MDS 9706 ou 9710 com o erro "bootflash busy; seg fault while mounting bootflash"

MDS1# dir bootflash:
bootflash:///
bootflash://module-5/
bootflash://sup-1/
bootflash://sup-active/
bootflash://sup-local/ 

MDS2# dir bootflash:
bootflash:///
bootflash://module-6/
bootflash://sup-2/
bootflash://sup-local/
bootflash://sup-standby/
bootflash://module-5/
bootflash://sup-1/
bootflash://sup-active/
bootflash://sup-remote/    <---------------

• O ISSU/D falha com a seguinte mensagem de erro:

Pre-upgrade check failed. Return code 0x4093007E (Issue cannot be done, bootflash is busy). 'segmentation fault' error messages when issuing `sys health check bootflash`:

switch# sys health check bootflash Unmount successful... Checking any file system errors...Please be patient... /isanboot/sbin/format-bootflash: line 75: 7598 Segmentation fault $SUDO $E2FSCK -n -v $@ > /dev/null 2> /dev/null done. 
Remounting bootflash .../isanboot/sbin/format-bootflash: line 62: 7600 Segmentation fault $SUDO /bin/mount $MNT_BOOTFLASH_DIR Failed to mount bootflash bootflash on the affected supervisor is not available switch# dir no such file or directory (invalid server) 
Logging log outputs: %BOOTVAR-2-AUTOCOPY_STANDBY_MOUNT_FAILED: Autocopy failed to access standby file system via NFS mount.Please, copy the boot images manually to standby bootflash. %SYSMGR-2-LAST_CORE_BASIC_TRACE: : PID 6688 with message non-sysmgr(non-sysmgr) crashed, core will be saved . Core file also generated: 
`show cores` Module  Instance  Process-name     PID       Date(Year-Month-Day Time) ------  --------  ---------------  --------  ------------------------- 5       1         non-sysmgr       6688      2017-10-08 07:29:07