On Fri, 2024-07-05 at 06:36 -0700, Tide Ka via users wrote: > I have gone through man pages of `dd` and find executing `sync` right > after the writing finished may not be enabled by default. That requires > passing `oflag=sync` or passing nocache to `conv=`, but non of the above > is done in the command you provided. I guess probably dd did leave > kernel cache behind and exit. > > Running `sync` and just wait for lights to not blink any more is always > very wise. And it also indicates that your installation medium is > probably OK. Because I'm often creating these installers on another, or older, distro, I tend to find that some of the flags aren't available on the dd that I'm using. Or the man file suggests they're not a good idea to use. For instance, based on the man file descriptions on this pc, I wouldn't pick these ones: nocache: discard cached data sync: pad every input block with NULs to ibs-size; when used with block or unblock, pad with spaces rather than NULs These sound better options: fdatasync: physically write output file data before finishing fsync: likewise, but also write metadata Older dd implementations wrote a series of dots to the console, as it was working, to show that there was data being transferred. It wasn't a 0 to 100% progress bar, but showed you that it wasn't being idle. I haven't seen that behaviour for a while. These days status=progress shows some numerical values, instead (with MB/sec, being lower values than I'd hope for). Using dd is a bit of a moving target and experiment each time I used it, hence why I've also issued sync and eject commands. -- uname -rsvp Linux 3.10.0-1160.118.1.el7.x86_64 #1 SMP Wed Apr 24 16:01:50 UTC 2024 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. -- _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
