I know this relates to an old version of Knoppix, but after remastering the os and upgrading the kernel to 2.6.31.6 (and compiling aufs as part of that) i'm not able to remount the /ramdisk branch as read-only upon boot. Or after in init 2. If anyone can advise on this, it'd be much appreciated.
When running the script below:
/usr/sbin/knoppix-image /mnt/sda1/knoppix.img
The following line is failing:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=ro /UNIONFS
The following line succeeds fine:
mount -o remount,noplink,prepend:/KNOPPIX.IMG=rw,mod:/ramdisk=rw /UNIONFS
I get mount: /UNIONFS is busy error.
I've deleted whiteout files on /ramdisk beforehand with:
find /ramdisk -iname .wh.\*.plnk -exec rm -Rfv {} \;
I've run fuser -m -v /ramdisk and used the -k option to kill processes off.
I've also run lsof /ramdisk and killed associated processes.
Distilling the command down to the following fails:
mount -t tmpfs -o remount,ro /ramdisk /ramdisk
The following command succeeds:
mount -t tmpfs -o remount,rw /ramdisk /ramdisk
In /etc/mtab /ramdisk has mode 755 0 0.
If you can help please advise.
Lenovo ThinkPad T14 Gen1 w/Core i5-10210U CPU - 16GB RAM - 256GB SSD - Win10 Pro
$259.99
Lenovo ThinkPad T495s Laptop AMD Ryzen 7 PRO 3700U 16GB RAM 256GB SSD Windows 10
$259.99
Lenovo ThinkPad E15 Gen3 15.6" IPS FHD Ryzen 5 5500U 2.10GHz 8GB 256GB SSD W11P
$205.00
Lenovo ThinkBook 15 Gen 4 Notebook 15.6" FHD Intel Core i7-1255U 8GB RAM
$544.99
Lenovo ThinkBook 15 Gen 4 Notebook 15.6" FHD AMD R7 5825U 16GB RAM 512GB SSD
$529.99
Lenovo - Legion Slim 5 16" Gaming Laptop WUXGA - Ryzen 5 7640HS with 16GB Mem...
$1349.99
Lenovo Legion Pro 5i 16" Gaming Laptop RTX 4070 8GB i9-13900HX 16GB RAM 1TB SSD
$1369.99
Lenovo - Yoga 7 2-in-1 14" 2K Touchscreen Laptop - AMD Ryzen 5 8640HS with 8G...
$749.99
Lenovo ThinkPad E580 15.6" Laptop Intel Core i5 8GB RAM 128GB SSD Windows 11
$139.49
Lenovo ThinkPad T580 15.6" (i5-8250U - 16GB RAM - 256GB SSD - Win11 Pro)
$134.84