![]() ![]() May 24 16:50:28 fileserver kernel: da5 at umass-sim2 bus 2 scbus12 May 24 16:50:28 fileserver kernel: umass2: SCSI over Bulk-Only quirks May 24 16:50:28 fileserver kernel: umass2: on usbus3 ![]() May 24 16:50:28 fileserver kernel: ugen3.7: at usbus3 Tries to update the superblock, but making sure at the disk driver level I had presumed that the writable mount failed because it put in the card with write protection on and then Possible _aside of_ the file system which should be preventedīy the switch as well. System cannot avoid the write protection. When a r/o mount is forced, the routines accessing that file It _should_ work the sameĪt upper layers, for example when using dd to write NULs to theĭevice with the write protection on - an error should (correctly) > mount_msdosfs: /dev/da5s1: Input/output error I then unmounted and unplugged it, flipped the write > (FAT32 file system already on it) and wrote a file to it. > adapter and plugged that into my SanDisk SD -> USB adapter, mounted it I put a microSD card out of an old phone into a SanDisk mSD -> SD ![]() > OK, thought I'd better try my own advice rather than just handing it That depends on software to "respect" it?! We definitely needĪ write enable punch like what 5.25" floppies had. this is terrible! Who invents a write protection switch > the poor reliability of the kanguru products. > Dangit, I thought Polytropon's solution would enable me to get around > or disable the replacement firmware, as I recall). > Canon cameras that uses that switch for another function (to enable > effectively saying "please don't write to this card". > The write protect switch on those cards is merely an input, > still have a write protection but you would need an adaptor to read > don't want or need additional encryption gimicks on it. Thought someone here would know of one if it exists. > I'm having trouble locating what I want - a physically Initializing SD cards from the USB adapter instead of a device like a I don't see why it wouldn't work, but have you tried formatting / Mostly because the kanguru drives seem to not be very robust I like this option better than the Kanguru one, The adapter then provides the write protection slider. > Additional fun: If you use a SD->µSD adapter, you can also use a > b) In case of reader failure, just replace the drive. > a) In case of media failure, just replace the SD card. > Now you have a write-protected USB drive. > example a USK SD/MMC/MS-MMC USB 2.0 card drive) and put the card in. > a USB card drive (usually in the shape of a regular USB stick, for > the required capacity and initialize it as intended. > I have been using something similar, even though it's not _exactly_ :-)Ī) In case of media failure, just replace the SD card.ī) In case of reader failure, just replace the drive.Īdditional fun: If you use a SD->µSD adapter, you can also use a Now you have a write-protected USB drive. ![]() Then getĪ USB card drive (usually in the shape of a regular USB stick, forĮxample a USK SD/MMC/MS-MMC USB 2.0 card drive) and put the card in. The required capacity and initialize it as intended. I have been using something similar, even though it's not _exactly_ > I don't want or need additional encryption gimicks on it. > Thought someone here would know of one if it exists. > a physically write-protected flash drive. > I'm having trouble locating what I want. ![]()
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