ASR9k IOS-XR upgrade space required - bytes or bits?

Question

While reading through the upgrade doc for 5.2.2, I found an inconsistency in the documentation.
http://www.cisco.com/web/Cisco_IOS_XR_Software/pdf/ASR9k_Upgrade_Downgrade_Procedure_IOSXR_Rel_522.pdf
Under section 2 - verifications, step 5 - check disk space, the doc says you need 1.54 GB (capital B) for upgrade.  But when I run the command 'show filesystem' the directory sizes are listed as b (lowercase b).
I suspect the IOS-XR output is wrong (lower b should be capital B)  2685895680 b is only 0.3357 GB
RP/0/RSP0/CPU0:FRTN-ASR9001-Aggr1#sh filesystem 
Fri Feb  6 15:45:25.984 UTC
File Systems:
     Size(b)     Free(b)        Type  Flags  Prefixes
           -           -     network     rw  qsm/dev/fs/tftp:
           -           -     network     rw  qsm/dev/fs/rcp:
           -           -     network     rw  qsm/dev/fs/ftp:
  1006632960  1006349312  dumper-lnk     rw  qsm/dumper_disk0a:
  3019898880  1770444288  dumper-lnk     rw  qsm/dumper_harddisk:
      224256      194560  dumper-lnk     rw  qsm/dumper_nvram:
  4026515456  2685895680  dumper-lnk     rw  qsm/dumper_disk0:
    28966912    28943732  dumper-lnk     rw  qsm/dumper_configflash:
    44695552    25854420  dumper-lnk     rw  qsm/dumper_bootflash:
  4026515456  2685895680  flash-disk     rw  disk0:
  3019898880  1770444288    harddisk     rw  harddisk:
  1006632960  1006349312  flash-disk     rw  disk0a:
    28966912    28943732       flash     rw  configflash:
    44695552    25854420       flash     rw  bootflash:
      224256      194560       nvram     rw  nvram:

Answer 1

Yes, it is bytes.
I'll get a cosmetic bug filed for the CLI, as per IEEE-1541 this is incorrect.
Thanks,
Sam