'dracut' command takes excessive amount of time during upgrade from RHEL 6.10 to 7.6
Issue
-
Upgrade from
RHEL 6.10
to7.6
using theredhat-upgrade-tool
takes excessive amount of time to complete. It was found thatdracut
process was taking significantly longer to complete.While running
strace
ondracut
process it was found to be taking ~2 hours time to complete. Thestrace
logs fordracut
process also showed lots of following messages during this delay:31852 11:46:06.855460 write(2, "WARNING: Device /dev/testvg1/testvg1 not initialized in udev database even after waiting 10000000"..., 114) = 114 31852 11:46:16.937028 write(2, "WARNING: Device /dev/testvg2/testvg2 not initialized in udev database even after waiting 10"..., 120) = 120 31852 11:46:27.019324 write(2, "WARNING: Device /dev/testvg3/testvg3 not initialized in udev database even after waiting 10000000 m"..., 112) = 112 31852 11:46:37.101428 write(2, "WARNING: Device /dev/rootvg/lv_tmp not initialized in udev database even after waiting 10000000 micr"..., 109) = 109 [...]
Environment
- Red Hat Enterprise Linux 6.10
- Red Hat Enterprise Linux 7.6
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