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.
Western Digital 1TB WD Blue PC Desktop 3.5'' Internal CMR Hard Drive - WD10EARZ
$44.99
Western Digital 1TB WD Gold Enterprise Class SATA Internal HDD - WD1005FBYZ
$84.99
Western Digital 1TB WD Blue SA510 SATA SSD Internal 2.5”/7mm Cased - WDS100T3B0A
$79.99
Dell PowerEdge R640 Server | 2x Gold 6132 28 Cores | H730p | Choose RAM / DRIVES
$2710.00
Patriot P210 128GB 256GB 512GB 1TB 2TB 2.5" SATA 3 6GB/s Internal SSD PC/MAC Lot
$19.99
Samsung - 980 PRO 1TB Internal Gaming SSD PCIe Gen 4 x4 NVMe
$109.99
Samsung - Geek Squad Certified Refurbished 870 EVO 1TB SATA Solid State Drive
$67.99
2 PACK Seagate ST1000LM035 Mobile HDD 1TB 2.5" SATA III Laptop Hard Drive
$26.89
1TB/2TB USB 3.0 Flash Drive Thumb U Disk Memory Stick Pen PC Laptop Storage lot
$773.19
Apple 1TB Solid State Drive for Apple MacBook Pro
$80.00