Went to install 24.10.0 on a Linksys E8450 today. I upgraded its firmware as soon as I set it up. Per the docs, I first uploaded openwrt-24.10.0-mediatek-mt7622-linksys_e8450-ubi-initramfs-recovery-installer_signed.itb. It upgraded fine, the router rebooted, and I was able to access the web recovery interface.
That's where I messed up. I should have uploaded openwrt-24.10.0-mediatek-mt7622-linksys_e8450-ubi-squashfs-sysupgrade.itb, but uploaded a different upgrade file instead. I didn't realize this, and after the do-no-disturb sign came up, I went to lunch.
Came back to it two hours later, still had the do-no-disturb notice up. After a bit, I decided the browser was wrong, killed the page, then rebooted the router.
It came up, the DHCP server worked, I can access the root account via ssh and ping out to the net; however, I cannot find the app that starts the web interface; apk segfaults when I try to use it; and there is no ftp or scp/sftp server installed, so I cannot upload anything to try a CLI sysupgrade. I put the files on a USB drive thinking the router would recognize the port, but no dice (certainly nothing nice like an automount). I looked in /dev on the router, but there are no sdx devices and I am not certain how to try mounting it (I made a directory in /tmp to hold the files).
If I can figure out how to mount the USB drive, I can get the OpenWRT and Linksys files on there and try to recover via sysupgrade.
If anyone has advice on how to remedy this, I would be grateful Thank you.