BBS: TELESC.NET.BR Assunto: crazy problem with pi4 and ssd De: Mike Scott Data: Thu, 28 May 2026 16:27:24 +0100 ----------------------------------------------------------- Hi all. I always seem to get impossible problems.... Take a pi4 and two disks - both sata connected by a sata to usb adapter. One is a small real disk drive, the other a Kingston SSD. Both have been in the spares cupboard for a while. I put an old arm64 version of bookworm onto the spinner. Works fine. I put the exact same onto the ssd. Won't boot, with messages like timed out waiting for udev to be empty or read error on /dev/sda [details not recorded] there seems to be no obvious fault with the ssd as such - it was working as expected when put into storage, and a scan with badblock -w is currently at 80% with no errors. I've swapped the pi4 psu for a pi5 psu in case supply current was an issue. No change. I've run dd over much of the ssd (under mint) both reading and writing, but no errors. Is there anything weird that I might have missed about booting from an ssd rather than a real disk? TIA for any thoughts. -- Mike Scott Harlow, England --- PyGate Linux v1.5.15 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10) ----------------------------------------------------------- [Voltar]