[Bug 118401] Lenovo A740 gave up waiting for root device with kernels >= 4.3

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=118401

--- Comment #17 from Kevin Brubeck Unhammer <unhammer+dill@mm.st> ---
Created attachment 218851
  --> https://bugzilla.kernel.org/attachment.cgi?id=218851&action=edit
phone-image of initramfs-script w/ahci, scsi dmesg's, 4.6

$ cat /etc/initramfs-tools/scripts/init-premount/kbu-blkid 
#!/bin/sh
PREREQ=""
prereqs()
{
     echo "$PREREQ"
}

case $1 in
prereqs)
     prereqs
     exit 0
     ;;
esac

echo "KBU"
echo 'cat /proc/partitions # gives:'
      cat /proc/partitions
echo '/sbin/blkid # gives:'
      /sbin/blkid
echo 'cat /proc/cmdline # gives:'
      cat /proc/cmdline
echo 'dmesg | grep -i blocks # gives:'
      dmesg | grep -i blocks
echo 'dmesg | grep -i ahci # gives:'
      dmesg | grep -i ahci
echo 'dmesg | grep -i scsi # gives:'
      dmesg | grep -i scsi
echo 'dmesg | grep -i sata # gives:'
      dmesg | grep -i sata
echo 'dmesg | grep -i  ata[0-4] # gives:'
      dmesg | grep -i  ata[0-4]
echo 'cat /proc/scsi/scsi # gives:'
      cat /proc/scsi/scsi
echo "/KBU"

$ cat /etc/initramfs-tools/modules 
# List of modules that you want to include in your initramfs.
# They will be loaded at boot time in the order below.
#
# Syntax:  module_name [args ...]
#
# You must run update-initramfs(8) to effect this change.
#
# Examples:
#
# raid1
# sd_mod
ahci
libahci

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