diff options
author | mav <mav@FreeBSD.org> | 2011-04-26 17:01:49 +0000 |
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committer | mav <mav@FreeBSD.org> | 2011-04-26 17:01:49 +0000 |
commit | 519a30551e314539bf947c982c6407ccfa2a1fc7 (patch) | |
tree | c2addcf01914b57db809b818c842c9fb3345fe25 /UPDATING | |
parent | e19591c5077914564e9818802d634404fc9e3808 (diff) | |
download | FreeBSD-src-519a30551e314539bf947c982c6407ccfa2a1fc7.zip FreeBSD-src-519a30551e314539bf947c982c6407ccfa2a1fc7.tar.gz |
- Add shim to simplify migration to the CAM-based ATA. For each new adaX
device in /dev/ create symbolic link with adY name, trying to mimic old ATA
numbering. Imitation is not complete, but should be enough in most cases to
mount file systems without touching /etc/fstab.
- To know what behavior to mimic, restore ATA_STATIC_ID option in cases
where it was present before.
- Add some more details to UPDATING.
Diffstat (limited to 'UPDATING')
-rw-r--r-- | UPDATING | 13 |
1 files changed, 11 insertions, 2 deletions
@@ -30,7 +30,17 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 9.x IS SLOW: them respectively (adX -> adaY, acdX -> cdY, afdX -> daY, astX -> saY, where 'Y's are the sequential numbers starting from zero for each type in order of detection, unless configured otherwise with tunables, - see cam(4)). + see cam(4)). There will be symbolic links created in /dev/ to map + old adX devices to the respective adaY. They should provide basic + compatibility for file systems mounting in most cases, but they do + not support old user-level APIs and do not have respective providers + in GEOM. Consider using updated management tools with new device names. + + It is possible to load devices ahci, ata, siis and mvs as modules, + but option ATA_CAM should remain in kernel configuration to make ata + module work as CAM driver supporting legacy ATA controllers. Device ata + still can be used in modular fashion (atacore + ...). Modules atadisk + and atapi* are not used and won't affect operation in ATA_CAM mode. ataraid(4) functionality is now supported by the RAID GEOM class. To use it you can load geom_raid kernel module and use graid(8) tool @@ -49,7 +59,6 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 9.x IS SLOW: device atapicd # ATAPI CDROM drives device atapifd # ATAPI floppy drives device atapist # ATAPI tape drives - options ATA_STATIC_ID # Static device numbering 20110423: The default NFS server has been changed to the new server, which |