@clm1919 / @wizard :-
Well, I've just knocked myself sideways with surprise. I'm gobsmacked; actually, I'm lost for words. I've just done something I thought was impossible on this HP Pavilion desktop rig.
As wizard is aware, I've had a USB SD card reader for ages. Bought it what must have been, oh.....20+ yrs ago, now. Got it from our local 'Pound shop' (we have a whole chain of these up and down the UK.....everything on sale is 1 British pound. A lot of it's tat, if I'm honest, but you can find the odd gem over the years.....I think much of their stock is obtained from closing-down/clearance sales from other retailers that go bust.)
Anyways; bear with me, lads.
I've been using a 32GB Class 10 SanDisk SDHC card in it for a bit (this is a recent purchase). Currently, it's running Fossapup64 9.5.....PhilB's brilliant original 'take' on the Fossas & derivatives. This is the one I pushed the boat out with, and set-up with shinobar's recent Grub2Config (after lots of encouragement from everybody!)
(@clm1919 :- You won't be aware of this, but this whole business has turned into something of a saga over the years! I absolutely loathe & detest GRUB2 - everybody here knows it! - despite that it's the bootloader of choice for just about every mainstream distro out there. I think it's bloated, and over-hyped; ever since I went all-Puppy a decade ago, I've been a stalwart user & promoter of Puppy's older Grub4DOS bootloader. To my way of thinking it's lean, mean and the best thing since sliced bread.......to quote a popular Brit TV advert, "it does what it says on the tin". Without ANY fuss. But not many seem to agree with me....)
But, I digress. To the point of this missive.....
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The Pavilion has a built-in SD card reader. I tried it out briefly when I first got this rig, shortly after COVID-19 kicked-off worldwide. I didn't have any joy with it then, and frankly, I didn't bother too much about it, since the SD card reader in the previous Compaq desktop had never worked either. The USB jobbie did what I wanted, and that was good enough for me.
After reading your post earlier on, I had a bit of a 'go' at the card reader slot. I took the SanDisk out of the USB reader, and plugged it directly into the internal card reader slot. As expected, it didn't show up. I then pulled it out & pushed it back again, several times in succession.....and all of a sudden, it showed up!
"Hmm..." I thought. "I wonder..." Leaving it plugged-in, I re-booted out of Tahr64 (where I've been for the last couple of days) and, using Grub4DOS's advanced menu, booted directly to sdc1 (FAT32 256 MB in size, where GRUB2 got installed). I fully expected to get the proverbial "No operating system found. Please hit any key to continue..." but.....NO!! Wonder of wonders - and this is why I'm so speechless - the usual boot-time sequence for Fossapup64 showed up on the screen and began to run through!
I still can't believe it.....but this is coming to you from my Chrome-portable running in Fossapup64, booted direct from the Pavilion's internal SD card reader slot. How's that for an achievement..??!
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MY thoughts on the matter? Obviously, an SD card reader slot would have to be mounted horizontally on a laptop, but on this Pavilion rig, being a desktop mid-size tower, it's mounted vertically.....and in an ideal position to catch dust & dirt far more readily than a horizontal one would. I'm wondering if those several in/outs with the card cleared enough grime from the reader's contacts to permit it to function at long last. We have hot-air heating in this house - first time we've had it - and while it's far more efficient than radiators, this is the dustiest house I've ever lived in, too.
It's possible it may have something to do with the spring contacts in the reader. I have noticed those in the USB reader seem far 'firmer' than those in the HP internal reader; TBH, it pushes in without any noticeable resistance at all.
And it also loads far slower than a USB flash-drive. SD card memory is not noted for being especially fast.....unless you're paying silly money for the very latest ultra-fast cards, and even then your reader needs to be able to support such cards. This IS an HP, after all.....and HP tend to skimp-out wherever they can, as many of us are aware!
But, the 'proof of the pudding is in the eating':-
...and there it is.....taken just before typing this post out.
Sorry for the lousy picture quality - the Nokia Asha dumb-phone's camera sensor is only 640x480 at best! - but it's good enough to show the SanDisk plugged directly into the HP's front-mounted SD reader slot.
And Fossapup64 is booting from it. So there....!!
Mike.