[opensuse] Re: Problems loading opensuse on 4TB USB drive on 42.3
On 08/06/2017 12:15 PM, L A Walsh wrote:
I purchased a 4TB Seagate Backup Plus hard drive. FWIW, the backup+ drives have 4K sectors and no "512e" (emulated) compatibility. MS OS's before Win8 don't recognize it for many
don fisher wrote: purposes, including boot and MS-backup+restore (great feature for a backup+ drive!).
They were "designed"[?] for backup only.
Note -- some larger drives, especially ones sold for backing surveillance camera's are not designed to work as general purpose disks because they take 2x as long to write as normal disks (they need to write 2 tracks in order to store 1). I haven't heard of any backup disks like that, but I wouldn't be surprised if some were sold where only the fine print indicated additional write costs.
Since the only 4T disks I have are 512e, I can't really test it out.
FWIW -- the term "miscrosoft basic data" with a GUID of EBD0A0A2-B9E5-4433-87C0-68B6B72699C7.
Linux used to use that same GUID to describe any "Basic Data Parition" until MS took it over. Since then linux uses a Linux Specific Data Partition GUID of 0FC63DAF-8483-4772-8E79-3D69D8477DE4.
-l
As I recall, linux now uses 4k sectors by default. Does that imply that "512e" is a required capability for the drive to boot? Thanks for the insight:-) Don -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
don fisher composed on 2017-08-06 13:52 (UTC-0700):
As I recall, linux now uses 4k sectors by default. Does that imply that "512e" is a required capability for the drive to boot?
By "linux", what do you mean? 1-IIRC, filesystem drivers tend to default to a 4k I/O blocksize, but that's been going on since before HD manufacturers switched to 4k physical sectors. 2-partitioning tools default to a creation structure that harmonizes with a 4k physical HD sector size. If you've not seen http://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-m... before it's worth a look. -- "The wise are known for their understanding, and pleasant words are persuasive." Proverbs 16:21 (New Living Translation) Team OS/2 ** Reg. Linux User #211409 ** a11y rocks! Felix Miata *** http://fm.no-ip.com/ -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org
On 2017-08-06 23:12, Felix Miata wrote:
If you've not seen http://www.seagate.com/tech-insights/advanced-format-4k-sector-hard-drives-m... before it's worth a look.
Very curious that page: it loads in Spanish for me. I have to lie and tell it I live in the UK. I can not select that I live in Spain and let the language to English. Daft. Otherwise, the page is very interesting. Curious photo: head fly height compared to the size of a dust particle. -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)
On 2017-08-06 22:52, don fisher wrote:
As I recall, linux now uses 4k sectors by default. Does that imply that "512e" is a required capability for the drive to boot?
Notice that your disk has the same record types as mine, that boots. The only differences are double total size (2TB mine), and that I/O size line, the optimal size: Yours: I/O size (minimum/optimal): 4096 bytes / 33553920 bytes Mine: I/O size (minimum/optimal): 4096 bytes / 4096 bytes -- Cheers / Saludos, Carlos E. R. (from 42.2 x86_64 "Malachite" at Telcontar)
participants (3)
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Carlos E. R. -
don fisher -
Felix Miata