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.
SQL Server 2019 Standard (10 CAL) - Windows and Linux, Physical License NEW
$178.45
Dell Poweredge 2950 two Xeon E5320 quad core CPUs, 16GB RAM, 8-2.5" HHD 146GB ea
$95.00
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$169.00
1U Open Source Router Firewall X10SLH-N6-ST031 E3-1270 V3 6x 10GB Ethernet 16GB
$399.00
IBM E850 Power8 2x 12C 3.02GHz 512Gb 1.8Tb SAS 10GbE 16Gb Linux Server 8408-E8E
$479.96
Top 20 Linux OS Multi-Boot USB 2025 - Ultimate Compilation of Linux OS and Tools
$17.99
IBM X3200 M3 Tower Server Intel Xeon X3450 2.67GHz 2GB 2*500 Gb Hdd Linux AS IS
$60.00
The Complete Redhat Linux 5.2 Operating System Deluxe Secure Server Partial Seal
$33.99
HP PROLIANT DL380 GEN9 E5-2697 v2 2.7GHz 64GB 32x2 RAM 2x300GB HDD P400 LINUX
$249.95
LG Pro Centric Server Model PCS150R
$1100.00